20250501Annual DSM Report 2024 - Redacted.PDF

RECEIVED
May 01, 2025
IDAHO PUBLIC
UTILITIES COMMISSION
ROCKY MOUNTAIN 1407 W.North Temple,Suite 330
POWER Salt Lake City,Utah 84116
A DIVISION OF PACIFICOR'
May 1, 2025
VIA ELECTRONIC FILING
Idaho Public Utilities Commission
11331 W Chinden Blvd Building 8 Suite 201A
Boise, ID 83714
Attn: Commission Secretary
RE: CASE NO. PAC-E-05-10
IDAHO 2024 ANNUAL DEMAND SIDE MANAGEMENT REPORT
Pursuant to Order No. 29976 issued in Case No. PAC-E-05-10, Rocky Mountain Power hereby
submits for electronic filing its 2024 Annual Demand Side Management Report,.
All formal correspondence and requests regarding this filing should be addressed to one of the
following:
By E-mail (preferred): datarequestgpacificorp.com
By regular mail: Data Request Response Center
PacifiCorp
825 NE Multnomah Blvd., Suite 2000
Portland, OR 97232
For informal questions,please contact me at [phone].
Sincerely,
Michael S. Snow
Manager, Regulatory Affairs
Enclosures

_ ROCKY MOUNTAIN
POWER
POWERING YOUR GREATNESS
r
2024 IDAHO Energy Efficiency and Peak
Reduction Annual Report
Issued May 1, 2025.
Rocky Mountain Power
1407 West North Temple
Salt Lake City, UT 84116
pacificorpxom/environment/demand-side-management
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TABLE OF CONTENTS
EXECUTIVE SUMMARY.................................................................................................................................3
REGULATORY ACTIVITIES.............................................................................................................................4
MEETINGS WITH COMMISSION STAFF........................................................................................................4
PORTFOLIOOF PROGRAMS .........................................................................................................................5
ENERGY EFFICIENCY PROGRAMS.................................................................................................................5
WATTSMARTHOMES...................................................................................................................................... 5
HOME ENERGY REPORTS PROGRAM .............................................................................................................. 6
LOW INCOME WEATHERIZATION ................................................................................................................... 6
WATTSMART BUSINESS PROGRAM.............................................................................................................8
WATTSMART BUSINESS.................................................................................................................................. 8
DEMAND REDUCTION PROGRAMS..............................................................................................................9
IRRIGATION LOAD CONTROL........................................................................................................................... 9
WATTSMART BATTERIES...............................................................................................................................10
WATTSMART BUSINESS DEMAND RESPONSE................................................................................................11
EXPENDITURES: .......................................................................................................................................... 12
TOTAL PORTFOLIO SAVINGS AND EXPENDITURES..........................................................................................12
GROSS SAVINGS BY MEASURE CATEGORY:...............................................................................................12
LOADCONTROL EVENTS: ...........................................................................................................................13
COST EFFECTIVENESS: ................................................................................................................................15
TOTAL COST EFFECTIVENESS RESULTS BY PORTFOLIO AND PROGRAM...........................................................15
EVALUATIONS:............................................................................................................................................ 17
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EXECUTIVE SUMMARY
Rocky Mountain Power, a division of PacifiCorp, is a multi-jurisdictional electric utility serving customers
in Utah, Idaho,and Wyoming. In southeastern Idaho alone,it serves approximately 90,716 customers.The
company focuses on acquiring energy efficiency and peak reduction resources as cost-effective
alternatives to traditional supply-side resources.
PacifiCorp develops an Integrated Resource Plan(IRP)l to balance cost, risk, uncertainty,supply reliability,
and long-term public policy goals. This plan outlines future actions to ensure Rocky Mountain Power
continues to provide reliable and reasonably priced service. Energy efficiency and peak management
opportunities are incorporated into the IRP based on their availability, characteristics, and costs.
Rocky Mountain Power employs external implementers to manage its energy efficiency and peak
reduction programs. Independent external evaluators assess each program to validate the energy and
demand savings achieved.
To communicate the value of energy efficiency, Rocky Mountain Power uses earned media, customer
communications, education, outreach advertising, and program-specific marketing.These efforts provide
information on low-cost and no-cost energy efficiency measures and educate customers about available
programs, services, and incentives.'
This report details program results and activities for the period from January 1, 2024, to
December 31, 2024. During this period, Rocky Mountain Power invested $4.5m in energy efficiency and
peak reduction resources utilizing collections from Electric Service Schedule 191, Customer Efficiency
Services Rate Adjustment("Schedule 191"),and$8.5m including the Irrigation Load Control program.This
investment resulted in approximately 16,000 megawatt hours(MWh)of first-year energy savings and 2.91
megawatts (MW) of capacity reduction from energy efficiency programs. The net benefits, based on the
projected value of energy savings over the lifespan of the measures, are estimated to be$1.6 million.
The Idaho Demand-Side Management(DSM) portfolio was deemed cost-effective according to the Utility
Cost Test(UCT),which is the primary cost-benefit test used in Idaho,with the exception of the Low-Income
Weatherization program, which utilizes the PacifiCorp Total Resource Cost Test (PTRC). Detailed cost-
effectiveness results can be found in Table 15 and Appendix A of the report.
In 2024, Rocky Mountain Power's Demand-Side Management (DSM) portfolio included the following
programs:
Energy Efficiency Programs:
• Wattsmart Homes
• Home Energy Reports
• Low Income Weatherization
• Wattsmart Business
1 Information on PacifiCorp's Integrated Resource Plan(IRP)can be found at:Integrated Resource Plan.
'Information on PacifiCorp's planning process,program administration,program evaluations,communication and outreach can
be found at: Demand-Side Management.
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Peak Reduction Programs:
• Irrigation Load Control
• Wattsmart Batteries
• Commercial & Industrial (C&I) Demand Response
Pursuant to Commission Order No. 32196,the Idaho Irrigation Load Control Program classified as a power
system, with expenses incorporated into base rates instead of Schedule 191. Notwithstanding, details
about the Irrigation Load Control Program are included in this report.
REGULATORY ACTIVITIES
During the 2024 reporting period,the Company submitted various compliance and informational reports,
updates, notices, and requests to the Commission in support of its Demand-Side Management (DSM)
programs. The following is a list of those activities. Materials related to program incentive adjustments
that have not previously been provided on the record can be found in Appendix E.
• January 24,2024—The Company filed an Application Requesting Approval for Adjustments to the
Irrigation Load Control Program. (PAC-E-24-02)
• February 1, 2024—The DSM Balancing Account Report for the fourth quarter of 2023 circulated
to Commission Staff.
• April 24, 2024—The Company filed a request to extend the 2023 DSM Annual Report due date.
(PAC-E-05-10)
• May 1, 2024 — The DSM Balancing Account Report for the first quarter of 2024 circulated to
Commission Staff.
• May 15, 2024—The Company filed its Annual DSM Report for 2023. (PAC-E-05-10)
• June 19, 2024 — The Company submitted a compliance filing in the matter of the Application
Requesting Approval for Adjustments to the Irrigation Load Control Program. (PAC-E-24-02)
• August 1,2024—The DSM Balancing Account Report for the second quarter of 2024 circulated to
Commission Staff.
• August 16, 2024—The Company filed an Application Requesting a Prudency Determination on
Demand Side Management Expenditures. (PAC-E-24-10)
• October 11, 2024 — The Company posted a 45-day notice on its website to adjust heat pump
incentives with an effective date of November 25, 2024.
• November 4, 2024—The DSM Balancing Account Report for the third quarter of 2024 circulated
to Commission Staff.
• December 13,2024—The Company circulated its 2025 Communications Plan to Commission Staff.
MEETINGS WITH COMMISSION STAFF
The Company consulted with Idaho Public Utilities Commission Staff throughout 2024, with formal
presentations on the following matters:
On July 16, 2024, Rocky Mountain Power had a comprehensive discussion with the Idaho Commission
Staff, covering several key topics:
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• 2022-2023 Prudency Application:Analyzed the details and implications.
• 2023 DSM Annual Report and 2024 Outlook: Evaluated the previous year's performance and
outlined plans.
• Wattsmart Batteries Program: Delivered updates on the program's progress.
• Commercial & Industrial Demand Response Program: Presented updates on this initiative.
• Program Evaluations:Assessed evaluations for the Home Energy Report, Low Income
Weatherization, and Wattsmart Business programs.
PORTFOLIO OF PROGRAMS
ENERGY EFFICIENCY PROGRAMS
WATTSMART HOMES
Program Description
The Wattsmart Homes program aims to offer incentives for residential customers to use more efficient
products and services. It covers the following types:
• New Construction Homes
• Single Family Existing Homes
• Multi-family Housing Units
• Manufactured Homes
The program is available to residential customers under Electrical Service Schedules 1 or 36. Landlords
with rental properties where tenants billed under these schedules also qualify.
The Wattsmart Homes program passed the UCT with a cost benefit ratio of 1.54 for 2024.
Program Performance and Major Achievements in 2024
The Wattsmart Homes program achieved 1,172,677 kWh at site savings and disbursed $253,800 in
incentives.
In 2024,the Wattsmart Homes program in Idaho achieved several significant milestones:
• Energy Savings: The program helped residential customers save a substantial amount of energy,
contributing to the overall savings of over 25 million kWh across Utah, Idaho, and Wyoming.
• Heat Pump Installations: The program saw a record number of heat pump installations, with a
sizable portion completed by the Pro Network.These installations are crucial for reducing energy
consumption and lowering emissions.
• Incentive Adjustments: To better align with market conditions and increase program
participation,the program adjusted heat pump incentives.
• Survey Success:The Wattsmart Homes program continues to receive high marks from residential
customers, maintaining an 8.1/10 satisfaction rating.The rating was consistent throughout 2024.
• Energy Assessments: The program added self-guided home energy assessments to the options
available to customers. The assessment takes about 5-10 minutes to complete. The assessment
identifies energy saving opportunities and educates customers about the program and available
rebates. Customers still have the choice of virtual, via the phone, or in-person assessments, if
desired.
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• Household Maintenance Seasonal Tips:Customers can subscribe to our monthly calendar to find
solutions to help reduce energy use,ways to improve home comfort, and other programs offered
by Rocky Mountain Power.
HOME ENERGY REPORTS PROGRAM
Program Description
The Home Energy Reports program is a behavioral initiative aimed at reducing energy usage by offering
participants comparative energy usage data for comparable homes in the same geographical area. The
reports also provide tips to help participants decrease their energy consumption.
The Home Energy Reports program passed the UCT with a cost benefit ratio of 6.28 for 2024.
Program Performance and Major Achievements in 2024
In 2024,the Home Energy Reports program achieved total savings of 5,720,000 kWh and provided reports
to approximately 44,161 customers.
• Report highlights:
o Individual recommendations to save energy.
o Insights on energy usage by appliance type.
o Home characteristics included in the report with easy access to update the home profile.
o Monthly usage history included in reports.
• In 2024, 110 customers requested to be removed from the program.
• Positive feedback for the program averaged 87%throughout the year.
LOW INCOME WEATHERIZATION
Program Description
The Low-Income Weatherization program offers energy efficiency services at no cost to income-eligible
residential customers through partnerships with local non-profit agencies.The Company collaborates with
Eastern Idaho Community Action Partnership, Inc. (EICAP) and Southeastern Idaho Community Agency
(SEICAA), which receive federal funds from the Idaho Department of Health and Welfare (IDHW). These
agencies install energy efficiency measures in eligible households across the Company's service territory.
Pursuant to Order No.32151,the Company must fund 85 percent of the cost of approved energy efficiency
measures for income-eligible households.3
In 2024, the Low-Income Weatherization program demonstrated a cost-benefit ratio of 0.49 under the
PTRC Test.
Program Performance and Major Achievements in 2024
In 2024,the Low-Income Weatherization program achieved 61,796 kWh at sit savings, serving 27 homes.
This reflects the program's ongoing efforts to improve energy efficiency for income-eligible households.
3 Under Advice No. 19-01,the Company required to reimburse up to 100 percent of costs for ductless heat pumps.
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Low Income Energy Conservation Education
Commission Order No. 32788 authorized the Company to allocate $25,000 annually for the Low-Income
Energy Conservation Education program.This program,administered by Eastern Idaho Community Action
Partnership, Inc. (EICAP) and Southeastern Idaho Community Agency (SEICAA), targets participants who
receive Low Income Home Energy Assistance Program(LIHEAP)funds and Lend a Hand assistance. In 2024,
EICAP and SEICAA did not request funds due to carrying over unused funds from prior years.
In 2024, EICAP and SEICAA provided funding updates and kit inventory in their quarterly reports. The
Company will continue with quarterly reporting in 2025.
In 2024, Idaho has several initiatives aimed at providing conservation education to low-income
communities:
• Empowering Parents Grants: This program, made permanent in Fiscal Year 2024, invests $30
million annually to ensure Idaho families have access to educational resources tailored to their
needs.'These grants help low-income families choose the best educational fit for their children,
including conservation education programs.
• Youth Conservation and Environmental Career Training Grants: These grants provide
opportunities for young people, including those from low-income backgrounds, to gain work
experience in public lands and natural resources management.5 Participants engage in on-the-
ground projects, receive training, and are mentored by professionals in the field.
These grants help low-income families choose the best educational fit for their children, including
conservation education programs. The agencies delivered a conservation education curriculum to
households and detailed the activities and program specifics for 2024, as outlined in Table 1 below.
Table 1: 2024 Conservation Education Activities'
EICAP SEICAA
Beginning balance $28,107 $3,223
Annual Funds Received $0 $0
Expenditures $18,988 $0
Balance as of 12/31/24 $9,119 $3,223
Louseholds Served 486 119
Distribution:
EICAP utilized carried-over funds to purchase 600 kits,each containing vinyl foam weather strip,a window
insulation kit for up to five windows, a night light, two light bulbs, a faucet aerator, a fridge/freezer
thermometer, and wool dryer balls. As of December 31, 2024, EICAP had 609 kits in inventory, with five
kits reported as damaged.
The objective of EICAP's program is to educate Rocky Mountain Power customers on energy conservation
through practical tips and tools to help them save energy year-round.The program serves Rocky Mountain
Power households that receive energy assistance and/or request energy conservation education. For
customers unable to visit the office to receive assistance and/or conservation kits,the kits are mailed.
4 Governor Little's KEEPING PROMISES plan keeps Idaho's success going strong I Office of the Governor.
5 Idaho youth conservation and environmental career training grants.
6 Refer to Appendix F for additional data on Conservation Education Activities.
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SEICAA did not purchase kits in CY2024, as they focused on depleting the remaining stock. The kits
purchased in October 2023 included six dimmable LEDs (9W, 11W, 13W), two LED night lights, a seven-
outlet advanced power strip, two dual-threaded bubble faucet aerators (1.5 GPM), a dual spray swivel
kitchen aerator with pause (1.5 GPM), and one earth 3-spray handheld showerhead (1.5 GPM). As of
December 31, 2024, SEICAA had 226 kits in inventory.
Table 2: below outlines the educational programs provided by the agencies.
Table 2:Additional Information on Conservation Education by Agencies
EICAP ISEICAA
Program Design Educate Rocky Mountain Power Reduce electricity usage and
customers about how to conserve monthly bills for participants of the
energy. LIHEAP program.
Target Audience Rocky Mountain Power customers LIHEAP recipients who have not
receive Low Income Home Energy received weatherization program
Assistance Heat(LIHEAP) Heat and services as a priority. Households
Crisis and Lend a Hand program. can also be identified through
SEICAA's other programs.
How Company Funds Funds were used to purchase energy RMP funds were not used in 2024 as
Were Used efficiency kits in October 2024 and SEICAA is trying to deplete the
for shipping of kits. remaining stock.
WATTSMART BUSINESS PROGRAM
WATTSMART BUSINESS
Program Description
The commercial, industrial, and agricultural energy efficiency program portfolio consolidated under a
single Non-Residential Energy Efficiency initiative known as Wattsmart Business. This program aims to
encourage both new and existing non-residential customers to enhance their electric energy efficiency
through the installation of efficient equipment and the adoption of improved energy management
protocols. Qualifying measures are those that demonstrate verifiable electric energy efficiency
improvements compared to an established baseline. Wattsmart Business offers include:
• Typical Upgrades
• Midstream/Instant Incentives
• Custom Analysis
• Energy Management
• Energy Project Manager Co-funding
The Wattsmart Business program passed the UCT with a cost-benefit ratio of 1.56.
Program Performance and Major Achievements in 2024
In 2024, the program achieved gross energy savings of 7,648,755 kWh at the site and distributed
incentives totaling$998,760.
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Within the reporting year the Wattsmart Business Program had 96 registered Trade Allies,with 9 of them
holding premium status. Participating Wattsmart Business Vendor Network (WBVN) vendors received
quarterly performance scorecards to provide timely feedback and encourage them to strive for
"Premium" status. Achieving premium status in WBVN offers several benefits to vendors:
1. Improved Visibility: Premium vendors receive enhanced visibility, making it easier for customers
to find and choose them for energy efficiency projects.
2. Enhanced Co-Branding: Premium status allows vendors to co-brand with Rocky Mountain Power,
which can boost their credibility and appeal to customers.
3. Timely Feedback: Vendors receive quarterly performance scorecards, providing valuable
feedback to help them maintain ambitious standards and improve their service.
These benefits help vendors attract more business and build stronger relationships with customers.
In 2024 the Wattsmart Business Program achieved several notable achievements:
• Incentives and Rebates: The program had 515 touchpoints with customers and trade allies, and
disbursed substantial incentives to participate in businesses,encouraging the adoption of energy-
efficient technologies and practices.
• Program Participation: There was a notable increase in participation from businesses across
various sectors, reflecting the program's growing impact and reach.
• The Agricultural track had the highest number of mail-in applications in the program's
history. This attributed to the personalized letters mailed to agricultural customers
informing them about the program. 1.2M kWh delivered from VFDs on irrigation pumps.
• Although the average project size was lower, project counts increased with all customer
segments.
• For small and medium sized businesses 57% of the savings delivered from lighting and
42%of savings generated from Agriculture projects.
These achievements highlight the program's commitment to reaching as many customers as possible,
promoting energy efficiency and supporting businesses in their sustainability efforts.
DEMAND REDUCTION PROGRAMS
IRRIGATION LOAD CONTROL
Program Description
The irrigation load control program is available to irrigation customers receiving electric service under
Schedule 10, Irrigation and Soil Drainage Pumping Power Service. Participants enroll through a third-party
program administrator and agree to curtail their electricity usage in exchange for an incentive. These
incentives are based on sites' average available load during program hours, adjusted for any opt-outs or
non-participation, and are issued after the season ends. The incentive compensates irrigators for the
additional costs incurred by interrupting their irrigation pumping during program hours.
Most participants have their irrigation pumps equipped with a dispatchable two-way control system,
allowing Rocky Mountain Power to manage their loads. Participants receive a 4-hour advance notice
before mandatory events and can opt-out,though each opt-out reduces their final incentive.
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In 2024,the mandatory program season ran from May 28th to August 16th.The voluntary program season
extended from August 17th to September 30th, although no voluntary events were scheduled between
those dates. Mandatory events were scheduled from 2 PM to 9 PM Mountain Standard Time, Monday
through Friday,excluding holidays,with a 4-hour notification for each event. Events with less than 4 hours'
notice were classified as voluntary.
The Irrigation Load Control program passed the UCT for 2024.
Program Performance and Major Achievements in 2024
In 2024, there were nine mandatory load control events initiated, and two voluntary load control events
initiated. The two voluntary events were classified as voluntary because they were scheduled with less
than 4-hours of notice.The available load from the Irrigation Program was utilized as reserves, providing
value to the program and benefiting the customers.A total of 111 customers participated in the program
across 999 sites. The total enrolled capacity was 191 MW (at generation), with a maximum realized
capacity of 128 MW (at generation).
WATTSMART BATTERIES
Program Description
The Wattsmart Batteries program encourages and incentivizes the installation of qualified individual
batteries for system-wide integration and overall electric grid management. By leveraging batteries, the
program aims to maximize renewable energy usage and advance a sustainable electric grid. These
batteries can be used for various smart grid applications, including frequency response, peak load
management, transmission relief, and daily load-cycling. Batteries participating in the Wattsmart Battery
Program integrated into PacifiCorp's Energy Management System to provide real-time grid benefits.
Eligible customers who participate in the program receive an enrollment incentive based on the kW size
of their battery and their participation commitment, as well as ongoing annual incentives for continued
participation.
The battery program passed the UCT using a 20-year Net Present Value (NPV) analysis.
Program Performance and Major Achievements in 2024
In 2024, Rocky Mountain Power called upon customers' batteries 164 times, with each event lasting 5
minutes,totaling 14 hours throughout the year.The total dispatch duration was less than three complete
battery cycles for customers enrolled for the entire year. All customer batteries enrolled in the program
prior to the events responded without any communication failures.
The Wattsmart Battery program has enrolled a total of 224 customers, with 111 of those enrollments
occurring in 2024.The total enrolled capacity is 1,278 kW at gen. All new customer enrollments included
both battery and solar installations,with no commercial batteries enrolled.
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WATTSMART BUSINESS DEMAND RESPONSE
Program Description
The Wattsmart Business Demand Response Program offers financial incentives to commercial and
industrial (C&I) customers who reduce their load during company-initiated events. This program aims to
provide peak load reduction, contingency reserves, frequency response, and other grid services to help
manage the overall electric grid effectively. It targets large commercial and industrial customers with
curtailable loads greater than 500 kW that can be curtailed with no advance notice or limited advance
notice.
An automated dispatch without advance notice and a total response time within 50 seconds is considered
a real-time event,while a dispatch event with advance notice and response within 7 minutes is considered
an advanced notice event.
The Wattsmart Demand Response program passed the UCT for 2024. Overall reducing the peak demand,
improving grid reliability,deferred infrastructure investment,energy savings,and environmental benefits.
These factors contribute to the program's ability to pass cost-effectiveness tests, demonstrating that
benefits outweigh the costs.
Program Performance and Major Achievements in 2024
In 2024, the Wattsmart Business Demand Response program in Idaho achieved several notable
milestones:
• Energy Reductions: The program successfully engaged a large energy consumer to reduce their
electricity usage during peak demand periods, contributing to overall grid reliability and cost-
effectiveness.
• Incentive Payments: Participants received substantial incentive payments for their energy
reductions, which helped defer the need for higher-cost investments in delivery infrastructure
and generation resources.
• Participation and Engagement: The program saw increased events and participation from non-
residential customers to curtail their electricity usage during load control events.
Company representatives and consultants are actively meeting with large commercial and industrial
customers to identify participation opportunities. They are developing site-specific demand response
strategies tailored to the needs of potential participants and their facilities. Due to the complexity of these
large customers and the significant load curtailment involved, the enrollment timeline typically ranges
from 6 to 9 months.
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EXPENDITURES:
TOTAL PORTFOLIO SAVINGS AND EXPENDITURES
Table 3: Program Results for January 1, 2024-December 31, 20247
kW/Yr.Savings kW/Yr.Savings
Load Management Programs (at site) _ (at gen) Program Expenditures
Irrigation Load Control 175,000 191,000 $4,135,424
Wattsmart Batteries 1,170 1,278 $297,950
C&I Demand Response 1,200 1,309 $118,589
Total Load Management 177,370 193,587 $4,551,963
Energy Efficiency Programs kWh/Yr.Savings kWh/Yr.Savings Program Expenditures
(at site) (at gen)
Low Income Weatherization 61,796 67,395 $229,938
Home Energy Reporting 51720,000 6,238,289 $84,510
Wattsmart Homes 1,172,677 1,278,933 $613,483
Total Residential 6,954,473 7,584,618 $927,931
Total Wattsmart Business 7,648,755 8,291,570 $2,756,539
Total Energy Efficiency 14,780,598 16,069,774 $8,236,432
Other Portfolio Expenditures
Commercial&Industrial Evaluation Costs $103,232
Residential Evaluation Costs $70,785
Outreach&Communications $115,510
Potential Study $112,131
System Support $20,424
Total Other Portfolio Expenditures $422,083
Total Idaho Portfolio Expenditures $8,658,515
Total Idaho Portfolio Expenditures excluding Irrigation Load Control $4,523,091
GROSS SAVINGS BY MEASURE CATEGORY'
Table 4: 2024 Annual Savings by Wattsmart Homes
Total kWh Total Measure
Measure Category (at Site) Total Incentive Quantity
Appliances 5,582 $2,385 53
Building Shell 12,027 $4,671 16,165 sq ft
Electronics 614 $172 6
HVAC 372,738 $83,041 151
Lighting 2,201 $305 11
Transportation 624,576 $124,750 544
Water Heating 8,386 $3,050 5
HVAC-NH 49,052 $12,350 8
Whole Building-NH 97,501 $23,075 92
Grand Total 1,172,677 $253,800
'The reported savings are gross,ex-ante values.
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Table 5: Low Income Homes Served and Measures Installed
Measure Type Installed
Insulation 63
Attic Ventilation 13
Lighting CFL/LED 200
Furnace Repair or Replacement 6
Duct Sealing and/or Insulation 16
Ductless Heat Pump 13
Thermal Doors and/or Window Replacement 87
Water Heater Repair/Replacement 2
Home Weatherization 27
Infiltration Reduction 26
Ground Cover 18
Total Number of Homes Served 27
Total kWh Savings @ Site 61,796
Table 6: Wattsmart Business Savings by Sector
Sector Total kWh(at Site) Total Incentive
Agricultural 1,942,013 $288,574
Commercial 4,487,542 $628,864
Industrial 1,219,200 $81,322
Grand Total 7,648,755 $998,760
Table 7: 2024 Annual Net Savings by Wattsmart Business
1--M
easure Category Total kWh(at Site) Total Incentive Total
Projects
Additional Measures 436,000 $28,635 1
Agriculture 2,091,154 $310,428 149
Building Shell 22,960 $6,924 3
Compressed Air 39,375 $5,896 1
Direct Install 385,200 $160,299 40
Energy Management 763,388 $15,268 6
Food Service 41,631 $1,300 2
HVAC 257,845 $47,747 7
Lighting 2,769,675 $309,107 153
Motors 474,000 $58,344 5
Refrigeration 123,340 $18,184 6
Irrigation 244,187 $36,628 8
Grand Total 7,648,755 $998,760 381
LOAD CONTROL EVENTS-
In 2024, Rocky Mountain Power Idaho conducted a total of 11 Irrigation Control Events, of which 9 were
mandatory and 2 were voluntary. Details for the Irrigation Load Control program events are provided in
table 8 below.
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Table 8: Irrigation Load Control Events$
Estimated Load
Event Date Event Times Reduction at MW Potential
Gen(MW) at Gen (MW)
1* 6/25/2024 8:00 PM-9:00 PM MDT 92 153
2 7/10/2024 4:00 PM-8:00 PM MDT 111 174
3 7/11/2024 5:00 PM-9:00 PM MDT 126 173
4 7/12/2024 5:00 PM-9:00 PM MDT 128 165
5 7/22/2024 5:00 PM-9:00 PM MDT 80 108
6 7/23/2024 5:00 PM-9:00 PM MDT 75 112
7* 7/24/2024 5:00 PM-9:00 PM MDT 61 123
8 8/1/2024 5:00 PM-8:00 PM MDT 43 70
9 8/2/2024 4:00 PM-8:00 PM MDT 39 70
10 8/5/2024 5.00 PM-9:00 PM MDT 63 68
11 8/6/2024 7:00 PM-9:00 PM MDT 57 73
*Indicates voluntary events
Table 9: Irrigation Load Program Performance
Maximum Potential MW(at Site) 175 MW
Maximum Potential MW(at Gen) 191 MW
Average Realized Load MW(at Gen) 81 MW
Maximum Realized Load MW(at Gen) 128 MW
Participation Customers 111
Participation (Sites) 999
In 2024, Rocky Mountain Power Idaho conducted a total of 164 Battery Control Events. The table below
summarizes the kW potential and events by month. Details for individual battery control events included
in Appendix G.
Table 10: Battery Control Events
Event Month Number of Reason for Avg kW Residential or
Events Event Potential Commercial
January 3 Frequency 543 Residential
February 3 Frequency 621 Residential
March 8 Frequency 635 Residential
April 26 Frequency 678 Residential
May 39 Frequency 726 Residential
June 15 Frequency 778 Residential
July 2 Frequency 837 Residential
August 10 Frequency 885 Residential
September 15 Frequency 937 Residential
October 15 Frequency 998 Residential
November 17 Frequency 1,108 Residential
December 11 Frequency 1,154 Residential
8 Additional Irrigation Load Control Event details are provided in Confidential Appendix C.
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Table 11:Wattsmart Battery Program Performance
Maximum Potential kW(at Site) 1,170
Maximum Potential kW(at Gen) 1,278
Total Participating Batteries 224
Table 12-Comparative Analysis of Idaho Residential Exports and Consumptions
Customers with Solar Onl Customers with Solar&Batteries
h Consumed kWh Exporte kWh Consumed kWh Exported
January 415,612 191 303,517 17,558
February 341,598 4,774 244,136 20,506
March 324,021 13,047 217,149 43,982
April 251,559 40,675 146,467 104,388
May 224,803 114,125 111,375 133,807
June 310,229 108,812 101,182 179,853
July 365,528 111,768 111,226 181,927
August 272,220 119,408 129,408 129,234
September 243,729 131,713 105,501 138,471
October 174,213 126,544 89,597 118,288
November 235,018 90,412 141,798 61,206
December 347,255 45,591 245,672 24,624
Total 3,505,785 907,060 1,947,028 1,153,844
In 2024, Idaho customers participated in a total of 6 C&I Demand Response events, summarized in the
tables below.
Table 13-C&I Demand Response Events
E Event Times kW Reason for
Achieved Event
1 8/2/2024 9:46 AM to 10:06 AM 792 Contingency
2 8/6/2024 5:44 PM to 6:04 PM 1008 Contingency
3 9/8/2024 10:37 PM to 10:57 PM 864 Contingency
4 10/2/2024 8:12 AM to 8:32 AM 216 Contingency
5 11/14/2024 10:21 AM to 10:41 AM 648 Contingency
6 12/12/2024 2:13 PM to 2:33 PM 864 Contingency
Table 14: C&I Demand Response Program Performance
Maximum Potential kW(at Site) 1,200
Maximum Potential kW(at Gen) 1,309
Total Participating Customers 1
COST EFFECTIVENESS:
TOTAL COST EFFECTIVENESS RESULTS BY PORTFOLIO AND PROGRAM
Program cost-effectiveness is evaluated using a company-specific modeling tool developed by a third-
party consultant.This tool incorporates PacifiCorp data and values,such as avoided costs, and follows the
methodology specified in California's Standard Practice Manual. The analysis assesses the costs and
benefits of Demand-Side Management(DSM) resource programs from different stakeholder perspectives,
including participants and non-participants, based on four tests described in the Standard Practice Manual
(TRC, UCT, PCT, and RIM), as well as an additional fifth test, PTRC.
15 of 17

Each of the cost-effectiveness tests for Rocky Mountain Power's programs are outlined below. The
primary cost/benefit test observed in Idaho is the UCT for all programs except the Low-Income
Weatherization program, which uses the PTRC.
• PacifiCorp Total Resource Cost (PTRC) Test: This test is the total resource cost test with an
additional 10% added to the net benefit side of the benefit/cost formula to account for non-
quantified environmental and non-energy benefits of conservation resources over supply-side
alternatives.
• Total Resource Cost(TRC)Test:This test considers the benefits and costs from the perspective of
all utility customers, comparing the total costs and benefits from both the utility and utility
customer perspectives.
• Utility Cost Test (UCT): Also called the program administrator cost test, this test provides a
benefit-to-cost perspective from the utility only. It compares the total utility cost incurred to the
benefit/value of the energy and capacity saved, excluding customer costs or benefits in the
calculation of the ratio.
• Participant Cost Test (PCT): This test compares the portion of the resource cost paid directly by
participants to the savings realized by the participants.
• Ratepayer Impact Cost (RIM) Test: This test examines the impact of energy efficiency
expenditures on non-participating ratepayers overall. Unlike supply-side investments, energy
efficiency programs reduce energy sales. Reduced sales typically lower revenue requirements
while putting near-term upward pressure on rates as remaining fixed costs are spread over fewer
kilowatt-hours.
Table 15:2024 Cost Effectiveness Results by Program'
Benefit/Cost Test
PTRC TRC UCT PCT
EE and DR DSM Portfolio(Inc. NEI) 0.98 0.89 1.49 2.23 0.46
Irrigation Load Control Program Pass Pass Pass n/a10 Pass
Battery Control Program(20-year NPV) Pass Pass Pass Pass Pass
C&I Demand Response Pass Pass Pass Pass Pass
Energy Efficiency Portfolio 0.95 0.86 1.41 2.20 0.45
Energy Efficiency Portfolio(exc. LIW) 0.97 0.89 1.49 2.23 0.46
Non-Residential Energy Efficiency Portfolio 1.06 0.97 1.56 2.51 0.45
Residential Energy Efficiency Portfolio(inc. NEI) 0.93 0.85 1.62 1.57 0.52
Residential Energy Efficiency Portfolio(exc. NEI) 0.89 0.81 1.62 1.57 0.52
Low Income Weatherization (inc. NEI)11 0.49 0.47 0.13 1.48 0.09
Home Energy Reporting 6.91 6.28 6.28 n/a12 0.79
Wattsmart Homes(inc. NEI) 0.67 0.61 1.54 1.15 0.50
' Details regarding energy efficiency cost-effectiveness provided in Appendix A. Details regarding demand response cost-
effectiveness are provided in Confidential Appendix B.A"Pass" designation indicates a benefit-cost ratio of 1.0 or higher.The
Low-Income Weatherization and Wattsmart Homes programs account for non-energy impacts in their cost-effectiveness
analyses.
"The participant cost test for the Irrigation Load Control program is n/a given that participants do not incur any direct costs for
measures and installations.
11 Funding for Low Income Weatherization conservation education is not considered in the program-level cost-effectiveness
testing.However,it is included in the cost effectiveness analyses for both the portfolio and residential sectors.
12 The Home Energy Reports(HER)program does not show results for the participant cost tests because these reports focus
primarily on behavioral changes and energy savings rather than direct financial investments by participants.
16 of 17

Portfolio-level cost-effectiveness encompasses overall portfolio costs, including the Potential Assessment
and the DSM system database. Sector-level cost-effectiveness, detailed in the Residential and Non-
Residential sections of this report, includes sector-specific evaluation, measurement, and verification
expenditures. The Company also accounts for quantifiable non-energy impacts at the portfolio and
residential levels, as well as within the Wattsmart Homes and Low-Income Weatherization programs.
EVALUATIONS:
Independent external evaluators conduct evaluations to validate the energy and demand savings from
the Company's energy efficiency programs. The Company follows the industry's best practices and
guidelines, such as those from the National Action Plan for Energy Efficiency Program Impact Evaluation
and the California Evaluation Framework.
A significant part of the evaluation involves verifying the installation of energy-efficient measures through
documentation reviews, surveys, and onsite inspections. Regular inspections and commissioning of
equipment are conducted to ensure potential savings.
The Company also performs programmatic verification activities, including inspections, quality assurance
reviews, and tracking checks, as part of routine program implementation. These practices help verify
installation information before formal impact evaluation results are available.
To maintain objectivity, evaluation, measurement, and verification tasks are managed by personnel who
are not directly responsible for program management.
Table 16: Evaluations Completed 2024
Evaluation Responsible Status Published
_11111111111114Consultant
2022-2023 Home Energy Reports ADM Completed 2024
2021-2022 Wattsmart Homes Evaluation ADM Completed 2024
17 of 17

APPENDIX
Appendix A: Energy Efficiency Cost-effectiveness Results

Memorandum
To: Alesha Mander, PacifiCorp
From: Eli Morris, Andy Hudson,Julian Graybill Brubaker
Date: 24 April 2025
Re: PacifiCorp Idaho Portfolio and Sector Level Cost-Effectiveness Results (including
Low-Income) — PY2024
ICF estimated the cost-effectiveness of PacifiCorp's overall energy efficiency portfolio in the
state of Idaho based on Program Year (PY) 2024 costs and savings estimates provided by
PacifiCorp.This memo provides cost-effectiveness results at the portfolio and sector levels. The
portfolio (including NEBs) passes the Utility Cost Test (UCT) and the Participant Cost Test
(PCT).
This memo provides analysis inputs and results in the following tables:
• Table 1: Cost Effectiveness Analysis Inputs
• Table 2: Portfolio-Level Costs, Nominal - PY2024
• Table 3: Benefit/Cost Ratios by Portfolio Type
• Table 4: Total Portfolio Cost-Effectiveness Results (Including NEBs) - PY2024
• Table 5: Total Portfolio Cost-Effectiveness Results (without NEBs) - PY2024
• Table 6: Total Portfolio Cost-Effectiveness Results with DR Programs (without NEBs)
- PY2024
• Table 7: C&I Sector Cost-Effectiveness Results - PY2024
• Table 8: Residential Sector Cost-Effectiveness Results (Including NEBs) - PY2024
• Table 9: Residential Sector Cost-Effectiveness Results (without NEBs) - PY2024
• Table 10: Low Income NEBs - PY2024
• Table 11: Wattsmart Homes NEBs by Measure - PY2024
The following assumptions were utilized in the analysis:
• Avoided Costs: Hourly values provided by PacifiCorp based on the 2023 Integrated
Resource Plan (IRP) Preferred Portfolio, converted into annual values using Idaho load
shapes from the same IRP.
• Modeling Inputs: measure savings, costs, measure lives, incentive levels, and portfolio
costs were based on estimates provided by PacifiCorp.
• Other Economic Assumptions: Discount rate, line losses, retail rate, and inflation rate
values were provided by PacifiCorp and are presented in Table 1 below.
�ICF

Memorandum
Tables 1 and 2 below summarize cost-effectiveness assumptions for the PacifiCorp Idaho
energy efficiency portfolio. All costs and impacts are presented at the portfolio level.
Table 1:Cost Effectiveness Analysis Inputs
I
Discount Rate 6.77%
Residential Line Loss I 9.06%
Commercial Line Loss 8.59%
Industrial Line Loss 3.83%
Irrigation Line Loss 9.05%
Residential Energy Rate($/kWh) $0.12
Commercial Energy Rate($/kWh) $0.10
Industrial Energy Rate($/kWh) $0.07
Irrigation Energy Rate($/kWh) $0.11
Inflation Rate' 2.27%
Table 2:Portfolio-Level Costs,Nominal-PY2024
Commercial & Industrial $103,232
Evaluation Costs
Residential Evaluation Costs $70,785
Low Income Energy $0
Conservation Education
Outreach&Communications $115,510
Potential Study $112,131
System Support $20,424
Total $422,083
Tables 3 through 8 present the cost-effectiveness results at the portfolio and sector levels.
Tables 9 and 10 present NEBs impacts for the low income and Wattsmart Homes programs.
Table 3:Benefit/Cost Ratios by Portfolio Type
. •
Total Portfolio(Including 0.96 0.87 1.41 2.20 0.45
NEBs)
Total Portfolio 0.95 0.86 1.41 2.20 0.45
Total Portfolio (Including 1.32 1.27 1.65 2.26 0.82
Demand Response Programs)
Commercial &Industrial 1.06 0.97 1.56 2.51 0.45
Residential (Including NEBs) 0.93 0.85 1.62 1.57 0.52
Residential 0.89 0.81 1.62 1.57 0.52
'Future rates determined using a 2.27%annual escalator.
♦I/ 2
.-ICF

Memorandum
Table 4:Total Portfolio Cost-Effectiveness Results(Including NEBs)-PY2024
Cost-Effectiveness Levelized NPV Costs NPV Net Benefit/Cost
Test $/kWh Benefits Benefits Ratio
Total Resource Cost
Test(PTRC) + $0.086 $6,740,877 $6,463,075 ($277,802) 0.96
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.086 $6,740,877 $5,881,878 ($858,999) 0.87
Utility Cost Test(UCT) I $0.052 $4,106,552 1 $5,798,125 $1,691,573 1.41
Participant Cost Test
(PCT) $4,645,763 $10,205,642 $5,559,879 2.20
Rate Impact Test(RIM) $12,839,348 $5,798,125 ($7,041,224) I 0.45
Lifecycle Revenue $0.00033
Impacts ($/kWh)
Discounted Participant 3.53
Payback(years)
Table 5: Total Portfolio Cost-Effectiveness Results (without NEBs)-PY2024
Benefit/Cost Test Benefits -
Total Resource Cost
Test (PTRC) + $0.086 $6,740,877 $6,393,170 ($347,707) 0.95
Conservation Adder I-
Total Resource Cost
Test(TRC) No Adder $0.086 $6,740,877 $5,811,973 ($928,904) 0.86
Utility Cost Test(UCT) $0.052 $4,106,552 $5,798,125 $1,691,573 1.41
Participant Cost Test
(PCT) $4,645,763 $10,199,394 $5,553,631 2.20
Rate Impact Test(RIM) $12,839,348 $5,798,125 ($7,041,224) 0.45
Lifecycle Revenue
Impacts ($/kWh) $0.00033
Discounted Participant 3.53
Payback(years)
.%1/ 3
7ICF

Memorandum
Table 6:Total Portfolio Cost-Effectiveness Results with DR Programs(without NEBs)-PY2024
ectiveness Test
$/kWh Benefits Benefits Ratio
110
Total Resource Cost Test
(PTRC) + Conservation $0.086 $11,292,840 $14,883,194 $3,590,354 1.32
Adder
Total Resource Cost Test
(TRC) No Adder $0.086 $11,292,840 $14,301,997 $3,009,157 1.27
Utility Cost Test(UCT) $0.052 $8,658,515 $14,288,148 $5,629,634 1.65
Participant Cost Test
(PCT) $4,645,763 $10,506,508 $5,860,745 2.26
Rate Impact Test(RIM) $17,391,311 $14,288,148 -$3,103,163 0.82
Lifecycle Revenue Impacts
$0.00076
($/kWh)
Discounted Participant 3.21
Payback(years)
Table 7.•C&I Sector Cost-Effectiveness Results -PY2O24
ectiveness Levelized NPV Costs NPV Net Benefit/Cost
Test $/kWh Benefits Benefits Ratio
Total Resource Cost
Test(PTRC)+ $0.070 r$4,444,753 $4,721,742 $276,989 I 1.06
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.070 $4,444,753 $4,292,493 ($152,260) 0.97
Utility Cost Test(UCT) $0.044 $2,756,539 1 $4,292,493 $1,535,954 1.56
Participant Cost Test
(PCT) $3,088,476 $7,755,029 $4,666,553 2.51
Rate Impact Test(RIM) $9,512,808 $4,292,493 ($5,220,315) 0.45
Lifecycle Revenue $0.00030
Impacts ($/kWh)
Discounted Participant
Payback(years) 5.09
�1/ 4
71_F

Memorandum
Table 8:Residential Sector Cost-Effectiveness Results(Including NEBs)-PY2024
Cost-Effective n ess Levelized NPV Costs NPV Net Benefit/Cost
Test $/kWh Benefits I Benefits Ratio
Total Resource Cost
Test(PTRC) + $0.121 $1,874,041 $1,741,324 ($132,717) 0.93
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.121 $1,874,041 $1,589,376 ($284,665) 0.85
Utility Cost Test(UCT) $0.060 $927,931 $1,505,632 $577,701 1.62
Participant Cost Test
(PCT) $1,557,287 $2,450,602 $893,316 1.57
Rate Impact Test(RIM) $2,904,457 $1,505,632 ($1,398,826) I 0.52
Lifecycle Revenue $0.00007
Impacts ($/kWh)
Discounted Participant 2.20
Payback(years)
Table 9:Residential Sector Cost-Effectiveness Results (without NEBs)-PY2024
Benefit/Cost Test $/kWh BenefitsBenefits
Total Resource Cost
Test (PTRC) + $0.121 $1,874,041 $1,671,428 ($202,613) 0.89
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.121 $1,874,041 $1,519,480 ($354,561) 0.81
Utility Cost Test(UCT) $0.060 $927,931 $1,505,632 $577,701 1.62
Participant Cost Test
(PCT) $1,557,287 $2,444,365 $887,078 1.57
Rate Impact Test(RIM) $2,904,457 $1,505,632 ($1,398,826) 0.52
Lifecycle Revenue
Impacts ($/kWh) $0.00007
Discounted Participant 2.20
Payback(years)
Table 70:Low Income NEBs - PY2024
___101V Program Perspective
Non-Energy Benefit Impact Adjusted
Total NEBs $64,345 I PTRC,TRC
Table 11: Wattsmart Homes NEBs by Measure - PY2024
Measure Discount Total NPV
MeWasuffeame Total NEBs 1..rFuantity
($/yr) k::!!� Life Rate Benefits
Appliances $659 53 14 6.77% $5,551
�1/ 5
7ICF

Memorandum
To: Alesha Mander, PacifiCorp
From: Eli Morris, Andy Hudson,Julian Graybill Brubaker
Date: 25 April 2025
Re: PacifiCorp Idaho Portfolio and Sector Level Cost-Effectiveness Results (without
Low-Income) — PY2024
ICF estimated the cost-effectiveness of PacifiCorp's overall energy efficiency portfolio in the
state of Idaho based on Program Year (PY) 2024 costs and savings estimates provided by
PacifiCorp.This memo provides cost-effectiveness results at the portfolio and sector levels. The
portfolio (including NEBs) passes the Utility Cost Test (UCT) and the Participant Cost Test
(PCT).
This memo provides analysis inputs and results in the following tables:
• Table 1: Cost Effectiveness Analysis Inputs
• Table 2: Portfolio-Level Costs, Nominal - PY2024
• Table 3: Benefit/Cost Ratios by Portfolio Type
• Table 4:Total Portfolio Cost-Effectiveness Results (Including NEBs) - PY2024
• Table 5: Total Portfolio Cost-Effectiveness Results (without NEBs) - PY2024
• Table 6:Total Portfolio Cost-Effectiveness Results with DR Programs (without NEBs) -
PY2024
• Table 7: C&I Sector Cost-Effectiveness Results - PY2024
• Table 8: Residential Sector Cost-Effectiveness Results (Including NEBs) - PY2024
• Table 9: Residential Sector Cost-Effectiveness Results (without NEBs) - PY2024
• Table 10: Home Energy Savings NEBs by Measure - PY2024
The following assumptions were utilized in the analysis:
• Avoided Costs: Hourly values provided by PacifiCorp based on the 2023 Integrated
Resource Plan (IRP) Preferred Portfolio, converted into annual values using Idaho load
shapes from the same IRP.
• Modeling Inputs: measure savings, costs, measure lives, incentive levels, and portfolio
costs were based on estimates provided by PacifiCorp.
• Other Economic Assumptions: Discount rate, line losses, retail rate, and inflation rate
values were provided by PacifiCorp and are presented in Table 1 below.
�ICF

Memorandum
Tables 1 and 2 below summarize cost-effectiveness assumptions for the PacifiCorp Idaho
energy efficiency portfolio. All costs and impacts are presented at the portfolio level.
Table 1:Cost Effectiveness Analysis Inputs
Discount Rate 6.77%
Residential Line Loss 9.06%
Commercial Line Loss 8.59%
Industrial Line Loss 3.83%
Irrigation Line Loss 9.05%
Residential Energy Rate($/kWh) $0.12
Commercial Energy Rate($/kWh) $0.10
Industrial Energy Rate($/kWh) $0.07
Irrigation Energy Rate ($/kWh) $0.11
Inflation Rate' 2.27%
Table 2:Portfolio-Level Costs, Nominal-PY2024
Commercial & Industrial $103,232
Evaluation Costs
Residential Evaluation Costs $70,785
Low Income Energy $0
Conservation Education
Outreach&
Communications $115,510
Potential Study $112,131
System Support $20,424
Total $422,083
Tables 3 through 8 present the cost-effectiveness results at the portfolio and sector levels.
Table 9 presents the NEBs impacts for the Home Energy Savings program.
Table 3:Benefit/Cost Ratios by Portfolio Type
. •
Total Portfolio (Including
0.98 0.89 1.49 2.23 0.46
NEBs)
Total Portfolio 0.97 0.89 1.49 72.23 0.46
Total Portfolio (Including
Demand Response 1.34 1.29 1.69 2.30 0.84
_Programs)
Commercial & Industrial 1.06 0.97 1.56 2.51 0.45
Residential (Including NEBs) 0.99 0.90 2.11 1.59 0.57
Residential j 0.99 0.90 2.11 1.58 0.57
'Future rates determined using a 2.27%annual escalator.
♦I/ 2
.-ICF

Memorandum
Table 4:Total Portfolio Cost-Effectiveness Results(Including NEBs)-PY2024
Cost-Effectiveness - - -NPV Costs
Test $/kWh Benefits Benefits
Total Resource Cost
Test (PTRC) + $0.083 $6,510,939 $6,351,094 ($159,845) 0.98
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.083 $6,510,939 $5,774,228 ($736,712) 0.89
Utility Cost Test(UCT) $0.050 $3,876,614 $5,768,668 $1,892,054 1.49
Participant Cost Test
(PCT) $4,431,725 $9,888,742 $5,457,018 2.23
Rate Impact Test(RIM) $12,506,549 $5,768,668 ($6,737,882) 0.46
Lifecycle Revenue $0.00032�
Impacts($/kWh)
Discounted Participant I 3.41
Payback(years)
Table 5: Total Portfolio Cost-Effectiveness Results (without NEBs)-PY2024
Cost-Effectiveness Levelized NPV NetTest $/kWh NPV Costs Benefits Benefits-
Total Resource Cost
Test(PTRC) + $0.083 $6,510,939 $6,345,534 ($165,405) 0.97
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.083 $6,510,939 $5,768,668 ($742,272) 0.89
Utility Cost Test(UCT) $0.050 $3,876,614 $5,768,668 $1,892,054 1.49
Participant Cost Test
(PCT) $4,431,725 $9,882,495 $5,450,770 2.23
Rate Impact Test(RIM) $12,506,549 $5,768,668 ($6,737,882) 0.46
Lifecycle Revenue $0.00032
Impacts ($/kWh)
Discounted Participant 3.41
Payback(years)
�I/
7ICF

Memorandum
Table 6:Total Portfolio Cost-Effectiveness Results with DR Programs(without NEBs)-PY2024
Cost-Effectiveness -
st Levelized NPV Costs NPV Net Benefit/Cost
I $/kWh Benefits Benefits Ratio
Total Resource Cost Test
(PTRC) + Conservation J
$0.083 $11,062,902 $14,835,558 $3,772,656 1.34
Adder _
Total Resource Cost Test
(TRC) No Adder $0.083 $11,062,902 $14,258,691 $3,195,789 1.29
Utility Cost Test(UCT) $0.050 $8,428,577 $14,258,691 $5,830,114 1.69
Participant Cost Test(PCT) $4,431,725 $10,189,608 $5,757,884 2.30
Rate Impact Test(RIM) $17,058,512 $14,258,691 ($2,799,821) 0.84
Lifecycle Revenue Impacts
$0.00032
($/kWh)
Discounted Participant 3.41
Payback (years)
Table 7:C&I Sector Cost-Effectiveness Results - PY2024
Effective n ess LevelizedNet -
Test $/kWh NPV Costs Benefits Benefits Ratio
Total Resource Cost
Test(PTRC) + $0.070 $4,444,753 $4,721,742 $276,989 1.06
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.070 $4,444,753 $4,292,493 ($152,260) 0.97
Utility Cost Test(UCT) $0.044 $2,756,539 $4,292,493 $1,535,954 1.56
Participant Cost Test
(PCT) $3,088,476 $7,755,029 $4,666,553 2.51
i
Rate Impact Test(RIM) $9,512,808 $4,292,493 ($5,220,315) 0.45
Lifecycle Revenue $0.00030
Impacts($/kWh)
Discounted Participant 5.09
Payback(years)
�1i 4
7ICF

Memorandum
Table 8:Residential Sector Cost-Effectiveness Results(Including NEBs)-PY2024
Cost-Effectiveness - - -Test $/kWh Benefits Benefits
NIPV Costs
Total Resource Cost
Test(PTRC) + $0.112 $1,644,104 $1,629,344 ($14,760) 0.99
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.112 $1,644,104 $1,481,726 ($162,378) 0.90
Utility Cost Test(UCT) $0.048 $697,993 $1,476,175 $778,182 2.11
Participant Cost Test
(PCT) $1,343,248 $2,133,703 $790,455 1.59
Rate Impact Test(RIM) $2,571,659 $1,476,175 ($1,095,484) 0.57
Lifecycle Revenue $0.00007
Impacts($/kWh)
Discounted Participant 1.94
Payback(years)
Table 9:Residential Sector Cost-Effectiveness Results (without NEBs) - PY2024
. Benefit/Cost
Test $/kWh Ratio
Total Resource Cost
Test(PTRC) + $0.112 $1,644,104 $1,623,792 ($20,312) 0.99
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.112 $1,644,104 $1,476,175 ($167,929) 0.90
Utility Cost Test(UCT) $0.048 $697,993 $1,476,175 $778,182 2.11
Participant Cost Test
(PCT) $1,343,248 $2,127,466 $784,217 1.58
Rate Impact Test(RIM) $2,571,659 $1,476,175 ($1,095,484) 0.57
Lifecycle Revenue
Impacts ($/kWh) $0.00007
Discounted Participant
Payback(years) 1.94
Table 10:Home Energy Savings NEBs by Measure-PY2024
QuantityTotal Measure Discount Total NPV
Measure Name NEBs
Appliances $659 53 14 6.77% $5,551
�1/ 5
7ICF

Memorandum
To: Alesha Mander, PacifiCorp
From: Eli Morris, Andy Hudson,Julian Graybill Brubaker
Date: 25 April 2025
Re: PacifiCorp Idaho Wattsmart Homes Cost-Effectiveness Results — PY2024
ICF estimated the cost-effectiveness of PacifiCorp's overall energy efficiency portfolio in the
state of Idaho based on Program Year (PY) 2024 costs and savings estimates provided by
PacifiCorp.This memo provides cost-effectiveness results for the Wattsmart Homes (WSH)
program.The program (including NEBs) passes the Utility Cost Test (UCT) and the Participant
Cost Test (PCT).
This memo provides analysis inputs and results in the following tables:
• Table 1:Wattsmart Homes Cost Effectiveness Analysis Inputs
• Table 2: Wattsmart Homes Annual Program Costs, Nominal - PY2024
• Table 3: Wattsmart Homes kWh Savings by Measure Category - PY2024
• Table 4: Benefit/Cost Ratios by Measure Category - PY2024
• Table 5: Wattsmart Homes Program Cost-Effectiveness Results (without NEBs) - PY2024
• Table 6: Appliances Cost-Effectiveness Results (without NEBs) - PY2024 (Load Shape -
Residential_ERWH_7P)
• Table 7: Building Shell Cost-Effectiveness Results (without NEBs) - PY2024 (Load Shape
- ID—Single—Family—Heat—pump)
• Table 8: Electronics Cost-Effectiveness Results (without NEBs) - PY2024 (Load Shape -
ID_Single Family—Plug)
• Table 9: HVAC Cost-Effectiveness Results (without NEBs) - PY2024 (Load Shape -
ID_Single_Family_Cooling)
• Table 10: Lighting Cost-Effectiveness Results (without NEBs) - PY2024 (Load Shape -
Residential_LIGHTING_7P)
• Table 11: Transportation Cost-Effectiveness Results (without NEBs) - PY2024 (Load
Shape - ID—Single—Family—Heating)
• Table 12:Water Heating Cost-Effectiveness Results (without NEBs) - PY2024 (Load
Shape - Residential_HPWH_7P)
• Table 13: HVAC-NH Cost-Effectiveness Results (without NEBs) - PY2024(Load Shape -
ID_Single_Family_Cooling)
�ICF

Memorandum
• Table 14: Whole Building-NH Cost-Effectiveness Results (without NEBs) - PY2024 (Load
Shape - ID—Single—Family—Cooling)
• Table 15: Wattsmart Homes Program Cost-Effectiveness Results (with NEBs) - PY2024
• Table 16: Appliances Cost-Effectiveness Results (with NEBs) - PY2024 (Load Shape -
Residential—ERWH_7P)
• Table 17: Building Shell Cost-Effectiveness Results (with NEBs) - PY2024(Load Shape -
ID_Single_Family_Heat_pump)
• Table 18: Electronics Cost-Effectiveness Results (with NEBs) - PY2024 (Load Shape -
Load Shape - ID—Single Family—Plug)
• Table 19: HVAC Cost-Effectiveness Results (with NEBs) - PY2024 (Load Shape -
ID_Single_Family_Cooling)
• Table 20: Lighting Cost-Effectiveness Results (with NEBs) - PY2024 (Load Shape -
Residential—LIGHTING_7P)
• Table 21: Transportation Cost-Effectiveness Results (with NEBs) - PY2024 (Load Shape -
ID_Single_Family_Heating)
• Table 22: Water Heating Cost-Effectiveness Results (with NEBs) - PY2024 (Load Shape -
Residential_HPWH_7P)
• Table 23: HVAC-NH Cost-Effectiveness Results (with NEBs) - PY2024 (Load Shape -
ID_Single_Family_Cooling)
• Table 24: Whole Building-NH Cost-Effectiveness Results (with NEBs) - PY2024(Load
Shape - ID—Single—Family—Cooling)
The following assumptions were utilized in the analysis:
• Avoided Costs: Hourly values provided by PacifiCorp based on the 2023 Integrated
Resource Plan (IRP) Preferred Portfolio, converted into annual values using Idaho load
shapes from the same IRP.
• Modeling Inputs: measure savings, costs, measure lives, incentive levels, and portfolio
costs were based on estimates provided by PacifiCorp.
• Other Economic Assumptions: Discount rate, line losses, retail rate, and inflation rate
values were provided by PacifiCorp and are presented in Table 1 below.
Tables 1 and 2 below summarize cost-effectiveness assumptions for the WSH program. All costs
and impacts are presented at the program and measure category level.
z

Memorandum
Table 1•Wattsmart Homes Cost Effectiveness Analysis Inputs
Parameter Value
Discount Rate 6.77%
Residential Line Loss 9.06%
Residential Energy Rate ($/kWh) $0.12
Inflation Rate' 2.27%
Table 2: Wattsmart Homes Annual Program Costs, Nominal-PY2024
Total .
Measure Category Program Incentives Utility Customer
ft_ _ Admin Development
Appliances $1,624 $61 $27 _ $2,385 $4,097 $38,895
Building Shell $3,499 $132 $58 $4,671 $8,360 $214,907
Electronics $179 $7 $3 $172 $360 $202
HVAC $108,457 $4,079 $1,789 $83,041 $197,367 $702,271
Lighting $640 $24 $11 $305 $980 $286
Transportation $181,736 $6,836 $2,998 $124,750 $316,320 $120,216
Water Heating $2,440 $92 $40 $3,050 $5,622 $9,721
HVAC-NH $14,273 $537 $235 $12,350 $27,395 $29,064
Whole Building-NH $28,370 $1,067 $468 $23,075 $52,981 $84,348
Total $341,220 $12,834 $5,629 $253,800 $613,483 $1,199,910
Tables 3 through 14 present the savings and cost-effectiveness results at the program and
measure category levels. Tables 15 through 24 present the NEBs impacts for the WSH program
and the cost-effectiveness results including NEBs at the program and measure category levels.
'Future rates determined using a 2.27%annual escalator.
\I/ 3
.-ICF

Memorandum
Table 3:Wattsmart Homes kWh Savings by Measure Category-PY2024
Adjusted-Gross
Gross Net -
Measure Category kWh Realization kWh Gross Savings Measure
Savings Rate Savings Ratio at Site Lif e
at Site at Site
Appliances 5,582 85% 4,745 89% 4,223 14
Building Shell 12,027 100% 12,027 89% 10,704 45
Electronics I 614 I 100%� 614 89% _ 546 5
HVAC 372,738 91% 339,191 89% 301,880 16
Lighting 2,201 87% 1,915 63% 1,206 15
Transportation 624,576 70% 437,203 96% 419,715 10
Water Heating 8,386 83% 6,960 89% 6,195 13
HVAC-NH 49,052 100% 49,052 80% 39,241 17
Whole Building-NH 97,501 100% 97,501 88% 85,801 45
Total 1,172,677 81% 949,209 92% 869,512 15
Table 4:Benefit/Cost Ratios by Measure Category-PY2024
Measure Category Mm�
ft
Appliances 0.07 0.06 0.62 0.19 0.25
Appliances (with NEIs) 0.21 0.20 0.62 0.33 0.25
Building Shell I 0.05 I 0.04 I 1.16 I 0.14 I 0.26
Building Shell (with NEIs) 0.05 0.04 1.16 0.14 0.26
Electronics 0.58 0.53 0.57 2.22 0.30
Electronics(with NEIs) 0.58 0.53 0.57 2.22 0.30
HVAC 0.67 0.61 2.52 0.70 0.74
HVAC (with NEIs) 0.67 0.61 2.52 0.70 0.74
Lighting 0.97 0.89 0.87 6.28 0.24
Lighting(with NEIs) 0.97 0.89 0.87 6.28 0.24
Transportation 0.59 0.54 0.53 4.68 0.21
Transportation (with NEIs) 0.59 0.54 0.53 4.68 0.21
Water Heating 0.30 0.27 0.59 1.04 0.24
Water Heating(with NEIs) 0.30 0.27 0.59 1.04 0.24
HVAC-NH 1.69 1.54 2.48 2.38 0.67
HVAC-NH (with NEIs) 1.69 1.54 2.48 2.38 0.67
Whole Building-NH 1.89 1.72 3.71 2.68 0.69
Whole Building-NH (with NEIs) 1.89 1.72 3.71 2.68 0.69
Total 0.67 0.61 1.54 1.15 0.50
Total with NEBs 0.67 0.61 1.54 1.15 0.50
\�II/ 4
CF

Memorandum
Table 5:Wattsmart Homes Program Cost-Effectiveness Results(without NEBs)-PY2024
ectiveness Test
$/kWh Benefits Benefits Ratio
Total Resource Cost Test
(PTRC) + Conservation $0.169 $1,559,593 $1,039,677 ($519,916) 0.67
Adder
Total Resource Cost Test
(TRC) No Adder $0.169 $1,559,593 $945,161 ($614,432) 0.61
Utility Cost Test(UCT) $0.066 $613,483 I $945,161 $331,678 1.54
Participant Cost Test
(PCT) $1,343,248 $1,540,880 $197,631 1.15
Rate Impact Test(RIM) $1,900,563 $945,161 ($955,402) 0.50
Lifecycle Revenue $0.00005
Impacts($/kWh)
Discounted Participant 12.57
Payback(years)
Table 6:Appliances Cost-Effectiveness Results (without NEBs)-PY2024(Load Shape-
Residential-ERWH_7P)
Cost-Effectiveness
$/kWh Benefits 7Benefits Ratio
Total Resource Cost Test
(PTRC) + Conservation $0.931 $40,607 $2,799 ($37,807) 0.07
Adder
Total Resource Cost Test
(TRC) No Adder $0.931 $40,607 $2,545 ($38,062) 0.06
Utility Cost Test(UCT) $0.094 $4,097 $2,545 ($1,552) 0.62
Participant Cost Test
(PCT) $43,702 $8,393 ($35,309) 0.19
Rate Impact Test(RIM) $10,105 $2,545 ($7,560) I 0.25
Lifecycle Revenue
Impacts ($/kWh) $0.00000
Discounted Participant
Payback(years) 70.43
Ali 5
7ICF

Memorandum
Table 7.Building Shell Cost-Effectiveness Results(without NEBs)-PY2024(Load Shape-
ID_Single_Family_Heat_pump)
Cost-Ef f ectiveness Test $/kWh NPV Costs Benefits Benefits Ratio
Total Resource Cost Test
(PTRC) + Conservation $1.253 $218,596 $10,639 ($207,957) 0.05
Adder I
Total Resource Cost Test $1.253 $218,596 $9,672
(TRC) No Adder ($208,924) 0.04
Utility Cost Test(UCT) $0.048 $8,360 $9,672 $1,312 1.16
Participant Cost Test
(PCT) $241,469 $33,462 ($208,007) 0.14
Rate Impact Test(RIM) $37,151 $9,672 ($27,479) 0.26
Lifecycle Revenue $0.00000
Impacts($/kWh)
Discounted Participant 324.73
Payback(years)
Table 8:Electronics Cost-Effectiveness Results (without NEBs) - PY2024(Load Shape-ID-Single
Family_Plug)
Levelized API
Cost-Effectiveness Test $/!<W�j Costs Benefits Benefits Ratio
Total Resource Cost Test
(PTRC) + Conservation $0.149 $390 $227 ($163) 0.58
Adder
Total Resource Cost Test
(TRC) No Adder $0.149 $390 $207 ($183) 0.53
Utility Cost Test(UCT) $0.137 $360 $207 ($153) 0.57
Participant Cost Test
(PCT) $227 $504 $277 2.22
Rate Impact Test(RIM) $692 $207 ($486) 0.30
Lifecycle Revenue Impacts
$0.00000
($/kWh)
Discounted Participant 2.25
Payback(years)
71 F

Memorandum
Table 9.HVAC Cost-Effectiveness Results (without NEBs)-PY2024(Load Shape-
ID_Single_Family_Cooling)
NEW— Levelized NPV Net Benefit/Cost
Cost-Ef f ectiveness Test $/kWh NPV Costs Benefits Benefits Ratio
Total Resource Cost Test
(PTRC) + Conservation $0.242 $816,597 $546,865 ($269,732) 0.67
Adder _
Total Resource Cost Test $0.242 $816,597 $497,150
(TRC) No Adder ($319,447) 0.61
I Utility Cost Test(UCT) $0.059 $197,367 $497,150 $299,783 2.52
Participant Cost Test
(PCT) $789,069 $555,372 ($233,697) 0.70
Rate Impact Test(RIM) $669,698 $497,150 ($172,548) 0.74
Lifecycle Revenue $0.00003
Impacts($/kWh)
Discounted Participant 22.57
Payback(years)
Table 10:Lighting Cost-Effectiveness Results (without NEBs) - PY2024 (Load Shape-
Residential-LIGHTING_7P)
Cost-EffectivenessNet Benefit/Cost
Levelized
Benefits
Total Resource Cost Test
(PTRC) + Conservation $0.074 $961 $936 ($25) 0.97
Adder
Total Resource Cost Test
(TRC) No Adder $0.074 $961 $851 ($110) 0.89
Utility Cost Test(UCT) $0.076 $980 $851 ($129) 0.87
Participant Cost Test
(PCT) $454 $2,854 $2,399 6.28
Rate Impact Test(RIM) $3,529 $851 ($2,678) 0.24
Lifecycle Revenue Impacts
$0.00000
($/kWh)
Discounted Participant 2.39
Payback(years)
Ali �
71 F

Memorandum
Table 11•Transportation Cost-Effectiveness Results(without NEBs)-PY2024(Load Shape-
ID_Single_Family_Heating)
Cost-Effectiveness Test $/kWh NPV Costs I Benefits Benefits Ratio
Total Resource Cost Test I
(PTRC) + Conservation $0.084 $311,786 $183,646 ($128,140) 0.59
Adder
Total Resource Cost Test
(TRC) No Adder $0.084 $311,786 $166,950 ($144,835) 0.54
Utility Cost Test(UCT) $0.085 $316,320 $166,950 ($149,369) 0.53
Participant Cost Test
(PCT) $125,225 $586,074 $460,849 4.68
Rate Impact Test(RIM) $777,644 $166,950 ($610,694) 0.21
Lifecycle Revenue $0.00004
Impacts($/kWh)
Discounted Participant 2.14
Payback(years)
Table 12: Water Heating Cost-Effectiveness Results (without NEBs) -PY2024(Load Shape -
Residential-HPWH_7P)
Cost-Effectiveness Test $/kWh NPV Costs Benefits Benefits .Ratio
Total Resource Cost Test
(PTRC) + Conservation $0.201 $12,293 $3,637 ($8,657) 0.30
Adder
Total Resource Cost Test
(TRC) No Adder $0.201 $12,293 $3,306 ($8,987) 0.27
Utility Cost Test(UCT) $0.092 $5,622 $3,306 ($2,316) 0.59
Participant Cost Test
(PCT) $10,923 $11,395 $472 1.04
Rate Impact Test(RIM) $13,967 $3,306 ($10,661) 0.24
Lifecycle Revenue Impacts
$0.00000
($/kWh)
Discounted Participant 12.46
Payback(years)
Ali
71 F

Memorandum
Table 13:HVAC-NH Cost-Effectiveness Results(without NEBs)-PY2024(Load Shape-
ID_Single_Family_Cooling)
$jkWh Benefits Benefits Ratio
Total Resource Cost Test
(PTRC) + Conservation $0.094 $44,109 $74,670 $30,561 1.69
Adder
Total Resource Cost Test
(TRC) No Adder $0.094 $44,109 $67,882 $23,773 1.54
Utility Cost Test(UCT) $0.059 $27,395 $67,882 $40,487 2.48
Participant Cost Test
(PCT) $36,330 $86,339 $50,009 2.38
Rate Impact Test(RIM) $101,384 $67,882 ($33,502) 0.67
Lifecycle Revenue $0.00000
Impacts($/kWh)
Discounted Participant 719
Payback(years)
Table 14: Whole Building-NH Cost-Effectiveness Results (without NEBs) -PY2024(Load Shape-
ID-Single-Family-Cooling)
FBenefit/Cost
$/kWh Benefits 7. W, Ratio
Total Resource Cost Test
(PTRC) + Conservation $0.082 $114,254 $216,258 $102,004 1.89
Adder
Total Resource Cost Test
(TRC) No Adder $0.082 $114,254 $196,598 $82,344 1.72
Utility Cost Test(UCT) $0.038 $52,981 $196,598 $143,617 3.71
Participant Cost Test
(PCT) $95,850 $256,486 $160,636 2.68
Rate Impact Test(RIM) $286,392 $196,598 ($89,794) 0.69
Lifecycle Revenue $0.00001
Impacts ($/kWh)
Discounted Participant 16.78
Payback(years)
Ali
71 F

Memorandum
Table 15:Wattsmart Homes Program Cost-Effectiveness Results(with NEBs)-PY2024
Cost-Effectiveness Test Levelized NFIV Costs NPV Net
$/kWh Benefits Benefits
Total Resource Cost Test
(PTRC) + Conservation Adder $0.169 $1,559,593 $1,045,229 ($514,365) 0.67
Total Resource Cost Test
(TRC) No Adder $0.169 $1,559,593 $950,713 ($608,881) 0.61
Utility Cost Test(UCT) $0.066 $613,483 $945,161 $331,678 1.54
Participant Cost Test(PCT) $1,343,248 $1,547,117 $203,869 1.15
Rate Impact Test(RIM) $1,900,563 $945,161 ($955,402) 0.50
Lifecycle Revenue Impacts $0.00005
($/kWh)
Discounted Participant
Payback(years) 12.52
Table 16:Appliances Cost-Effectiveness Results (with NEBs)-PY2024(Load Shape-Residential-ERWH_7P)
$/kWh Costs Benefits Benefits Ratio
Total Resource Cost Test(PTRC) +
$0.931 $40,607 $8,351 ($32,256) 0.21
Conservation Adder
Total Resource Cost Test(TRC) No
$0.931 $40,607 $8,096 ($32,510) 0.20
Adder
i_
Utility Cost Test(UCT) $0.094 $4,097 $2,545 ($1,552) 0.62
Participant Cost Test(PCT) $43,702 $14,631 ($29,071) 0.33
Rate Impact Test(RIM) $10,105 $2,545 ($7,560) 0.25
Lifecycle Revenue Impacts
$0.00000
($/kWh)
Discounted Participant Payback 40.40
(years)
;�ItF

Memorandum
Table 17.•Building Shell Cost-Effectiveness Results(with NEBs)-PY2024(Load Shape-
ID_Single_Family_Heat_pump)
I $/kWh Benefits Benefits Ratio
Total Resource Cost Test(PTRC) $1253 $218,596 $10,639 ($207,957) 0.05
+ Conservation Adder
Total Resource Cost Test (TRC)
$1.253 $218,596 $9,672 ($208,924) 0.04
No Adder
Utility Cost Test(UCT) $0.048 $8,360 $9,672 $1,312 1.16
Participant Cost Test(PCT) $241,469 $33,462 ($208,007) 0.14
Rate Impact Test(RIM) $37,151 $9,672 ($27,479) 0.26
Lifecycle Revenue Impacts
($/kWh) $0.00000
Discounted Participant Payback I 324.73
(years)
Table 18:Electronics Cost-Effectiveness Results (with NEBs)-PY2024(Load Shape -Load Shape-ID-Single
Family-Plug)
Cost-Effectiveness - �� Benefit/Cos
Ratio
Total Resource Cost Test (PTRC)
$0.149 $390 $227 ($163) 0.58
+ Conservation Adder
Total Resource Cost Test(TRC) $0.149 $390 $207 ($183) 0.53
No Adder
Utility Cost Test(UCT) $0.137 $360 $207 ($153) 0.57
Participant Cost Test(PCT) $227 $504 $277 2.22
Rate Impact Test(RIM) $692 $207 ($486) 0.30
Lifecycle Revenue Impacts $0.00000
($/kWh)
Discounted Participant Payback
2.25
(years)
�ICF

Memorandum
Table 19:HVAC Cost-Effectiveness Results(with NEBs)-PY2024(Load Shape-ID-Single-Family-Cooling)
I $/kWh Costs Benefits Benefits Ratio
Total Resource Cost Test(PTRC)
$0.242 $816,597 $546,865 ($269,732) 0.67
+ Conservation Adder
Total Resource Cost Test (TRC)No Adder $0.242 $816,597 $497,150 ($319,447) 0.61
Utility Cost Test(UCT) $0.059 $197,367 $497,150 $299,783 2.52
Participant Cost Test(PCT) $789,069 $555,372 ($233,697) 0.70
Rate Impact Test(RIM) $669,698 $497,150 ($172,548) 0.74
Lifecycle Revenue Impacts
I ($/kWh) $0.00003
Discounted Participant Payback 22.57
(years) _ _-
Table 20:Lighting Cost-Effectiveness Results (with NEBs)-PY2024 (Load Shape -
Residential_LIGHTING_7P)
�� Net Benefit/Cost
Cost-Effectiveness Test
Benefits Benefits Ratio
Total Resource Cost Test(PTRC) +
$0.074 $961 $936 ($25) 0.97
Conservation Adder
Total Resource Cost Test(TRC) No
$0.074 $961 $851 ($110) 0.89
Adder
Utility Cost Test(UCT) $0.076 $980 $851 ($129) 0.87
Participant Cost Test(PCT) $454 $2,854 $2,399 6.28
Rate Impact Test(RIM) $3,529 $851 ($2,678) 0.24
Lifecycle Revenue Impacts ($/kWh) $0.00000
Discounted Participant Payback
2.39
(years)
ICI

Memorandum
Table 21.Transportation Cost-Effectiveness Results(with NEBs)-PY2024(Load Shape-
ID_Single_Family_Heating)
$/kWh Benefits Benefits Ratio
Total Resource Cost Test(PTRC) $0.084 $311,786 $183,646 ($128,140) 0.59
+ Conservation Adder
Total Resource Cost Test (TRC) $0.084 $311,786 $166,950 ($144,835) 0.54
No Adder
Utility Cost Test(UCT) $0.085 $316,320 $166,950 ($149,369) 0.53
Participant Cost Test(PCT) $125,225 $586,074 $460,849 4.68
Rate Impact Test(RIM) $777,644 $166,950 ($610,694) 0.21
Lifecycle Revenue Impacts
$0.00004
($/kWh)
Discounted Participant Payback — 2.14
(years)
Table 22: Water Heating Cost-Effectiveness Results (with NEBs)-PY2024(Load Shape -
Residential-HPWH_7P)
Cost-Effectiveness � •• -, •• B Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.201 $12,293 $3,637 ($8,657) 0.30
Total Resource Cost Test(TRC) No $0.201 $12,293 $3,306 ($8,987) 0.27
Adder
Utility Cost Test(UCT) $0.092 $5,622 $3,306 ($2,316) 0.59
Participant Cost Test(PCT) $10,923 $11,395 $472 1.04
Rate Impact Test(RIM) $13,967 $3,306 ($10,661) 0.24
Lifecycle Revenue Impacts ($/kWh) $0.00000
Discounted Participant Payback 12.46
(years)
NI/ 13
7ICI

Memorandum
Table 23:HVAC-NH Cost-Effectiveness Results(with NEBs)-PY2024(Load Shape-
ID_Single_Family_Cooling)
Cost-Fffectiveness Test NetBenef its
Total Resource Cost Test(PTRC) +
$0.094 $44,109 $74,670 $30,561 1.69
Conservation Adder
Total Resource Cost Test(TRC) No
$0.094 $44,109 $67,882 $23,773 1.54
Adder
Utility Cost Test(UCT) $0.059 $27,395 $67,882 $40,487 2.48
Participant Cost Test(PCT) $36,330 $86,339 $50,009 2.38
Rate Impact Test(RIM) $101,384 $67,882 ($33,502) 0.67
Lifecycle Revenue Impacts
$0.00000
($/kWh)
Discounted Participant Payback 719
(years)
Table 24: Whole Building-NH Cost-Effectiveness Results (with NEBs)-PY2024(Load Shape-
ID_Single_Family_Cooling)
Cost-Effectiveness
$/kWh Benefits Benefits Ratio
Total Resource Cost Test (PTRC) +
$0.082 $114,254 $216,258 i $102,004 1.89
Conservation Adder
Total Resource Cost Test(TRC) No $0.082 $114,254 $196,598 $82,344 1.72
Adder
Utility Cost Test(UCT) $0.038 $52,981 $196,598 $143,617 3.71
Participant Cost Test(PCT) $95,850 $256,486 $160,636 2.68
Rate Impact Test(RIM) $286,392 $196,598 ($89,794) 0.69
Lifecycle Revenue Impacts $0.00001
($/kWh)
Discounted Participant Payback
16.78
(years)
�I/
'ICF

Memorandum
To: Alesha Mander, PacifiCorp
From: Eli Morris, Andy Hudson,Julian Graybill Brubaker
Date: 25 April 2025
Re: PacifiCorp Idaho Home Energy Reporting Program Cost-Effectiveness Results -
PY2024
ICF estimated the cost-effectiveness of PacifiCorp's overall energy efficiency portfolio in the
state of Idaho based on Program Year (PY) 2024 costs and savings estimates provided by
PacifiCorp.This memo provides cost-effectiveness results for the Home Energy Reporting
program.The program passes all cost effectiveness tests except the Ratepayer Impact measure
(RIM) test.
This memo provides analysis inputs and results in the following tables:
• Table 1: Cost Effectiveness Analysis Inputs
• Table 2: Home Energy Reporting Annual Program Costs, Nominal - PY2024
• Table 3: Home Energy Reporting Annual Savings - PY2024
• Table 4: Home Energy Reports Cost-Effectiveness Results - PY2024 (Load Shape -
ID_Single-Family_Heat-pump)
The following assumptions were utilized in the analysis:
• Avoided Costs: Hourly values provided by PacifiCorp based on the 2023 Integrated
Resource Plan (IRP) Preferred Portfolio, converted into annual values using Idaho load
shapes from the same IRP.
• Modeling Inputs: measure savings, costs, measure lives, incentive levels, and portfolio
costs were based on estimates provided by PacifiCorp.
• Other Economic Assumptions: Discount rate, line losses, retail rate, and inflation rate
values were provided by PacifiCorp and are presented in Table 1 below.
Tables 1 and 2 below summarize cost-effectiveness assumptions for the Home Energy Reporting
program. All costs and impacts are presented at the program level.
�ICF

Memorandum
Table I:Cost Effectiveness Analysis Inputs
Parameter Value
Discount Rate 6.77%
Residential Line Loss 9.06%
Residential Energy $0.12
Rate ($/kWh)
Inflation Rate' 2.27%
Table 2:Home Energy Reporting Annual Program Costs,Nominal-PY2024
M Utility Program Total
Program Year ro ra F
el. .
Home Energy
Reports $74,084 $6,491 $3,935 $0 $84,510
Total Program $74,084 $6,491 $3,935 $0 $84,510
Tables 3 and 4 present the savings and cost-effectiveness results at the program and measure
category levels.
Table 3:Home Energy Reporting Annual Savings -PY2024
Gross kWh Adjusted Net kWh
Program Year Savings at Realization Gross kWh Savings at Measure
Site Rate Savings at Site Life
I Site
Home Energy 5,720,000 87% 4,976,400 100% 4,976,400 1
Reports
Total Program 1 5,720,000 I 87% 1 4,976,400 100% 4,976,400 1
Table 4:Home Energy Reports Cost-Effectiveness Results -PY2024(Load Shape-
1 D_Single_Family_Heat_pump)
Cost- Test $/kWh Benefits Benefits
Total Resource Cost i
Test(PTRC) + $0.016 $84,510 $584,115 $499,605 6.91
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.016 $84,510 $531,014 $446,503 6.28
Utility Cost Test(UCT) $0.016 $84,510 $531,014 $446,503 6.28
Participant Cost Test
(PCT) $0 $586,586 $586,586 Pass
Rate Impact Test(RIM) $671,096 $531,014 ($140,082) 0.79
Lifecycle Revenue 0.00029
Impacts($/kWh) L I
Future rates determined using a 2.27%annual escalator.
2

Memorandum
To: Alesha Mander, PacifiCorp
From: Eli Morris, Andy Hudson,Julian Graybill Brubaker
Date: 25 April 2025
Re: PacifiCorp Idaho Low-Income Weatherization Cost-Effectiveness Results —
PY2024
ICF estimated the cost-effectiveness of PacifiCorp's overall energy efficiency portfolio in the
state of Idaho based on Program Year (PY) 2024 costs and savings estimates provided by
PacifiCorp.This memo provides cost-effectiveness results for the Low-Income Weatherization
program.The program passes the Total Resource Cost (TRC) and PacifiCorp Total Resource
Cost (PTRC) cost-effectiveness tests with non-energy benefits (NEBs).
This memo provides analysis inputs and results in the following tables:
• Table 1: Cost Effectiveness Analysis Inputs
• Table 2: Low Income Weatherization Annual Program Costs, Nominal - PY2024
• Table 3: Low Income Weatherization Annual Savings - PY2024
• Table 4: Benefit/Cost Ratios by Measure Category - PY2024
• Table 5: Low Income Weatherization Cost-Effectiveness Results (without NEBs) -
PY2024 (Load Shape - ID—Single—Family—Heat—pump)
• Table 6: Low Income Weatherization NEBs - PY2024
• Table 7: Low Income Weatherization Cost-Effectiveness Results (with NEBs) -
PY2024 (Load Shape - ID—Single—Family—Heat—pump)
The following assumptions were utilized in the analysis:
• Avoided Costs: Hourly values provided by PacifiCorp based on the 2023 Integrated
Resource Plan (IRP) Preferred Portfolio, converted into annual values using Idaho load
shapes from the same IRP.
• Modeling Inputs: measure savings, costs, measure lives, incentive levels, and portfolio
costs were based on estimates provided by PacifiCorp.
• Other Economic Assumptions: Discount rate, line losses, retail rate, and inflation rate
values were provided by PacifiCorp and are presented in Table 1 below.
Tables 1 and 2 below summarize cost-effectiveness assumptions for the Low Income
Weatherization program. All costs and impacts are presented at the program and measure
category level.
-**ICF

Memorandum
Table I:Cost Effectiveness Analysis Inputs
Parameter Value
Discount Rate 6.77%
Residential Line Loss 9.06%
Residential Energy Rate
($/kWh) $0.12
Inflation Rate' 2.27%
Table 2:Low Income Weatherization Annual Program Costs,Nominal-PY2024
Program Utility Program Total Gross
Program Year
Delivery Admin Development
a Budget Costs
Low Income $g 152 $6,743 $5 $214,038 $229,938 $214,038
Weatherization
Total Program 1 $9,152 1 $6,743 $5 1 $214,038 $229,938 $214,038
Tables 3 through 5 present the savings and cost-effectiveness results at the program and
measure category levels. Tables 6 and 7 present the NEB impacts for the Low-Income
Weatherization program and the cost-effectiveness results including NEBs at the program level.
Table 3:Low Income Weatherization Annual Savings -PY2024
Gross Adjusted - -
Program Year kWh Realization Gross kWh to kWh
Savings Rate Savings at Gross Savings
at Site Site Ratio at Site
Low Income 61,796 100% 61,796 100% 61,796 21
Weatherization
Total Program 61,796 100% 61,796 100% 61,796 21
Table 4:Benefit/Cost Ratios by Measure Category-PY2024
Program Year UCT RIM PCT
�®
Low Income Weatherization 0.49 0.47 0.13 0.09 1.48
with NEBs
Low Income Weatherization 0.21 0.19 0.13 0.09 1.48
-%,/ 2
7ICF

Memorandum
Table 5:Low Income Weatherization Cost-Effectiveness Results(without NEBs)-PY2024(Load Shape-
ID_Single_Family_Heat_pump)
Cost-Effectiveness BenefitsBenefits
Total Resource Cost Test
(PTRC) + Conservation $0.289 $229,938 $47,636 ($182,302) 0.21
Adder
Total Resource Cost Test $0.289 $229,938 $43,305
(TRC) No Adder ($186,632) 0.19
Utility Cost Test(UCT) $0.289 $229,938 $29,457 ($200,481) 0.13
Participant Cost Test
(PCT) $214,038 $316,899 $102,861 1.48
Rate Impact Test(RIM) $332,799 $29,457 I ($303,342) 0.09
Lifecycle Revenue Impacts
( $0.00001
$/kWh)
Table 6:Low Income Weatherization NEBs -PY2024
AdjustedNon-Energy Benefit Program Perspective
Impact
Total NEBs $64,345 PTRC,TRC
Table 7:Low Income Weatherization Cost-Effectiveness Results(with NEBs)-PY2024(Load Shape-
ID_Single_Family_Heat_pump)
Cost-Effectiveness -
st Levelized NPV NPV Net Benefits Benefit/Cost
$/kWh Costs Benefits Ratio
Total Resource Cost Test
(PTRC) + Conservation $0.289 $229,938 $111,981 ($117,957) 0.49
Adder
Total Resource Cost Test
(TRC) No Adder $0.289 $229,938 $107,650 ($122,287) 0.47
Utility Cost Test(UCT) $0.289 $229,938 $29,457 ($200,481) 0.13
Participant Cost Test(PCT) $214,038 $316,899 $102,861 1.48
Rate Impact Test(RIM) $332,799 $29,457 ($303,342) 0.09
Lifecycle Revenue Impacts $0.00001
($/kWh)
�ICF

Memorandum
To: Alesha Mander, PacifiCorp
From: Eli Morris, Andy Hudson,Julian Graybill Brubaker
Date: 25 April 2025
Re: PacifiCorp Idaho Wattsmart Business Program Cost-Effectiveness Results —
PY2024
ICF estimated the cost-effectiveness of PacifiCorp's overall energy efficiency portfolio in the
state of Idaho based on Program Year (PY) 2024 costs and savings estimates provided by
PacifiCorp.This memo provides cost-effectiveness results for the Wattsmart Business program.
The program passes the following cost effectiveness tests: PacifiCorp Total Resource Cost Test
(PTRC),the Utility Cost Test (UCT), and the Participant Cost Test (PCT).
This memo provides analysis inputs and results in the following tables:
• Table 1: Cost Effectiveness Analysis Inputs
• Table 2: Wattsmart Business Annual Program Costs, Nominal - PY2024
• Table 3: Annual Wattsmart Business Savings by Measure Category - PY2024
• Table 4: Benefit/Cost Ratios by Measure Category - PY2024
• Table 5: Wattsmart Business Program Cost-Effectiveness Results - PY2024
• Table 6: Wattsmart Business Additional Measures Cost-Effectiveness Results -
PY2024 (Load Shape - ID—Miscellaneous—Water—Heat)
• Table 7: Wattsmart Business Agriculture Cost-Effectiveness Results - PY2024 (Load
Shape - ID—Water—General)
• Table 8: Wattsmart Business Building Shell Cost-Effectiveness Results - PY2024
(Load Shape - ID_Miscellaneous_Space_Cool)
• Table 9: Wattsmart Business Compressed Air Cost-Effectiveness Results - PY2024
(Load Shape - ID—Miscellaneous—Mfg—General)
• Table 10: Wattsmart Direct Install Cost-Effectiveness Results - PY2024 (Load Shape
- Miscellaneous—Lighting)
• Table 11: Wattsmart Business Energy Management Cost-Effectiveness Results -
PY2024 (Load Shape - ID_Miscellaneous_Mfg_General)
• Table 12: Wattsmart Business Food Service Cost-Effectiveness Results - PY2024
(Load Shape - ID—School—Water—Heat)
• Table 13: Wattsmart Business HVAC Cost-Effectiveness Results - PY2024 (Load
Shape - ID—Miscellaneous—Space—Cool)
�ICF

Memorandum
• Table 14: Wattsmart Business Irrigation Cost-Effectiveness Results - PY2024 (Load
Shape - ID—Irrigation—General)
• Table 15: Wattsmart Business Lighting Cost-Effectiveness Results - PY2024 (Load
Shape - ID—Miscellaneous—Lighting)
• Table 16: Wattsmart Business Motors Cost-Effectiveness Results - PY2024 (Load
Shape - ID—Industrial—Machinery—General)
• Table 17: Wattsmart Business Refrigeration Cost-Effectiveness Results - PY2024
(Load Shape - ID—Warehouse—Refrigeration)
The following assumptions were utilized in the analysis:
• Avoided Costs: Hourly values provided by PacifiCorp based on the 2023 Integrated
Resource Plan (IRP) Preferred Portfolio, converted into annual values using Idaho load
shapes from the same IRP.
• Modeling Inputs: measure savings, costs, measure lives, incentive levels, and portfolio
costs were based on estimates provided by PacifiCorp.
• Other Economic Assumptions: Discount rate, line losses, retail rate, and inflation rate
values were provided by PacifiCorp and are presented in Table 1 below.
Tables 1 and 2 below summarize cost-effectiveness assumptions for the Wattsmart Business
program.All costs and impacts are presented at the program and measure category level.
Table 1.Cost Effectiveness Analysis Inputs
Discount Rate I 6.77%
Commercial Line Loss 8.59%
Industrial Line Loss 3.83%
Irrigation Line Loss 9.05%
Commercial Energy Rate ($/kWh) $0.10
Industrial Energy Rate ($/kWh) $0.07
Irrigation Energy Rate ($/kWh) I $0.11
Inflation Rate' = 2.27%
Future rates determined using a 2.27%annual escalator.
J/ z
;�ICF

Memorandum
Table 2:Wattsmart Business Annual Program Costs,Nominal-PY2024
Measure Program Utility Program Total Gross
Category Delivery Admin Development
Budget Costs
Additional
Measures $94,091 $5,638 $2,865 $28,635 $131,229 $48,265
Agriculture $450,099 $17,094 $13,740 $310,428 $791,362 $863,801
Building Shell $4,943 $145 $151 $6,924 $12,162 $33,912
Compressed
Air $8,497 $509 $259 $5,896 $15,161 $7,328
Direct Install $82,923 1 $2,425 $2,531 $160,299 $248,177 $46,487
Energy $164,550 $7,466 $5,016 $15,268 $192,300 $16,824
Management
Food Service $8,962 $262 $274 $1,300 $10,798 $2,527
HVAC $55,507 $1,623 $1,694 $47,747 $106,571 $135,367
Irrigation $52,555 $2,022 $1,604 $36,628 $92,810 $173,028
Lighting $596,232 $17,434 $18,199 $309,107 $940,972 $1,139,241
Motors $102,202 $5,014 $3,114 $58,344 $168,675 $162,598
Refrigeration $26,552 $776 $810 $18,184 $46,322 $57,596
Total: $1,647,113 $60,409 $50,257 $998,760 $2,756,539 $2,686,974
Tables 3 through 17 present the savings and cost-effectiveness results at the program and
measure category levels.
Table 3:Annual Wattsmart Business Savings by Measure Category-PY2024
AdjustedGross
Measure kWh Realization Gross Netto Net kWh Measure
Category Savings at Rate kWh Gross Savings at Life
Site Savings Ratio Site
at Site
Additional 436,000 98% 427,280 87% 371,734 10
Measures
Agriculture 2,091,154 98% 2,049,331 87% 1,782,918 13
Building Shell 22,960 98% I 22,501 I 87% 19,576 24
Compressed Air 39,375 98% 38,588 87% 33,571 15
Direct Install 385,200 98% 377,496 87% 328,422 14
Energy 763,388 96% 732,852 87% 637,582 5
Management
Food Service 41,631 98% 40,798 87% 35,495 12
HVAC 257,845 98% 252,688 87% 219,839 14
Irrigation 244,187 98% 239,303 87% 208,194 15
Lighting 2,769,675 98% 2,714,281 87% 2,361,425 14
Motors 474,000 99% 469,260 87% 408,256 15
Refrigeration 123,340 100% 123,340 87% 107,305 15
Total: 7,648,755 98% 7,487,719 87% 6,514,315 13
.0/ 3
7ICF

Memorandum
Table 4:Benefit/Cost Ratios by Measure Category-PY2024
Additional Measures 1.33 1.21 1.39 6.89 0.38
Agriculture 1.04 0.95 1.61 1.84 0.55
Building Shell 0.71 0.64 2.07 1.06 0.54
Compressed Air 1.72 1.56 1.71 4.45 0.55
Direct Install 1.60 1.45 0.79 10.57 0.30
Energy Management 1.40 1.27 1.28 13.42 0.56
Food Service 1.33 1.21 1.35 14.70 0.28
HVAC 1.25 1.14 2.08 2.05 0.59
Irrigation 1.33 1.21 2.98 1.61 0.73
Lighting 0.90 0.82 1.55 2.57 0.36
Motors 1.17 1.06 1.72 2.37 0.52
Refrigeration 1.09 0.99 1.83 2.37 0.46
Total Program 1.06 0.97 1.56 2.51 0.45
Table 5: Wattsmart Business Program Cost-Effectiveness Results -PY2024
Test I $/kWh Benefits Benefits Ratio
Total Resource Cost
Test (PTRC) + $0.070 $4,444,753 $4,721,742 $276,989 1.06
Conservation Adder
Total Resource Cost
Test (TRC) No $0.070 $4,444,753 $4,292,493 ($152,260) ' 0.97
Adder
Utility Cost Test
(UCT) $0.044 $2,756,539 $4,292,493 $1,535,954 1.56
Participant Cost $3,088,476 $7,755,029 $4,666,553 2.51
Test(PCT)
Rate Impact Test
(RIM) $9,512,808 $4,292,493 ($5,220,315) 0.45
Lifecycle Revenue $0.00030
Impacts ($/kWh)
SIC

Memorandum
Table 6: Wattsmart Business Additional Measures Cost-Effectiveness Results -PY2024(Load Shape -
ID_Miscellaneous—Water—Heat)
Cost-Effectiveness Levelized NPV Costs NPV Net Benefit/Cost
Test $/kWh Benefits Benefits Ratio
Total Resource Cost i
Test(PTRC) + $0.049 $150,859 $201,238 $50,379 1.33
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.049 $150,859 $182,943 $32,084 1.21
Utility Cost Test
(UCT) $0.043 $131,229 $182,943 $51,714 1.39
Participant Cost Test
(PCT) $55,477 $382,460 $326,984 6.89
i
Rate Impact Test
(RIM) $485,055 $182,943 ($302,111) 0.38
Lifecycle Revenue
Impacts ($/kWh) $0.00003
Table 7: Wattsmart Business Agriculture Cost-Effectiveness Results -PY2024(Load Shape-
ID_Water_General)
Test $/kWh Benefits Benefits Ratio
Total Resource Cost
Test(PTRC) + $0.077 $1,344,735 $1,402,415 $57,680 I 1.04
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.077 $1,344,735 $1,274,923 ($69,812) 0.95
i I
Utility Cost Test
(UCT) $0.045 $791,362 $1,274,923 $483,561 1.61
Participant Cost $992 875 $1,822,335 $829460 1.84
Test(PCT) ,
Rate Impact Test
(RIM) $2,303,268 $1,274,923 ($1,028,345) 0.55
Lifecycle Revenue
Impacts ($/kWh) $0.00010
5

Memorandum
Table 8: Wattsmart Business Building Shell Cost-Effectiveness Results -PY2024(Load Shape -
ID_Miscellaneous-Space-Cool)
Effectiveness - - Net -
NPV Costs
Test $/kWh Benefits Benefits Ratio
Total Resource Cost
Test(PTRC) + $0.147 $39,150 $27,716 ($11,434) 0.71
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.147 $39,150 $25,196 ($13,954) 0.64
Utility Cost Test
(UCT) $0.046 $12,162 $25,196 $13,035 2.07
Participant Cost Test
(PCT) $38,980 $41,231 I $2,251 1.06
Rate Impact Test
(RIM) $46,469 $25,196 ($21,273) I 0.54
Lifecycle Revenue $0.00000
Impacts ($/kWh)
Table 9: Wattsmart Business Compressed Air Cost-Effectiveness Results -PY2024 (Load Shape-
ID_Miscellaneous_Mfg_General)
Cost-Effectiveness Levellized NPV Costs NPV Net Benefit/Cost
Test $/kWh Benefits Benefits Ratio
Total Resource Cost
Test(PTRC) + $0.046 $16,593 $28,490 $11,896 1.72
Conservation Adder
Total Resource Cost $0.046 $16,593 $25,900 $9,306 1.56
Test(TRC) No Adder
Utility Cost Test
(UCT) $0.042 $15,161 $25,900 $10,738 1.71
Participant Cost Test
(PCT) $8,423 $37,495 $29,072 4.45
Rate Impact Test
(RIM) $46,760 I $25,900 ($20,861) 0.55
Lifecycle Revenue
$0.00000
Impacts ($/kWh)

Memorandum
Table 10.Wattsmart Direct Install Cost-Effectiveness Results -PY2024(Load Shape-
Miscellaneous_Lighting)
Effectiveness - - Benefit/Cost
NPV Costs
Test $/kWh Benefits I Benefits Ratio
Total Resource Cost
Test(PTRC)+ $0.040 $134,365 $214,654 $80,289 1.60
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.040 $134,365 $195,140 $60,775 1.45
Utility Cost Test
(UCT) $0.074 $248,177 $195,140 ($53,037) 0.79
Participant Cost Test
(PCT) $53,433 $564,801 $511,369 10.57
Rate Impact Test
(RIM) $652,680 $195,140 ($457,540) 0.30
Lifecycle Revenue I $0.00003
Impacts ($/kWh)
Table 11: Wattsmart Business Energy Management Cost-Effectiveness Results -PY2024(Load Shape -
ID-Miscellaneous-Mfg-General)
Effectiveness - - Benefit/Cost
NPV Costs
T $/kWh Benefits Benefits Ratio
Total Resource Cost
Test (PTRC) + $0.064 $193,857 $271,342 $77,486 1.40
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.064 $193,857 I $246,675 $52,818 1.27
Utility Cost Test
(UCT) $0.063 $192,300 $246,675 $54,375 1.28
Participant Cost Test
(PCT) $19,338 $259,579 $240,240 13.42
Rate Impact Test
(RIM) $436,611 $246,675 ($189,936) 0.56
i_
Lifecycle Revenue $0.00004
Impacts ($/kWh)
-%,i 7
ICI

Memorandum
Table 12: Wattsmart Business Food Service Cost-Effectiveness Results -PY2024(Load Shape-
ID_School_Water_Heat)
Cost-Effectiveness - - Net -
Test $/kWh Costs Benefits Benefits Ratio
Total Resource Cost
Test(PTRC) + $0.035 $12,025 $16,015 $3,990 1.33
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.035 $12,025 $14,559 $2,534 1.21
I I
Utility Cost Test
(UCT) $0.031 $10,798 $14,559 $3,762 1.35
Participant Cost Test
(PCT) $2,905 $42,692 $39,787 14.70
Rate Impact Test
(RIM) $52,190 $14,559 ($37,631) 0.28
Lifecycle Revenue I I $0.00000
Impacts ($/kWh)
Table 13: Wattsmart Business HVAC Cost-Effectiveness Results -PY2024(Load Shape-
ID_Miscellaneous_Space-Cool)
Effective n ess Levelized NPV I NetBenefit/Cost
Test $/kWh Benefits Benefits Ratio
Total Resource Cost
Test(PTRC) + $0.086 $194,191 $243,553 $49,362 1.25
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.086 $194,191 $221,412 $27,221 1.14
Utility Cost Test
(UCT) $0.047 $106,571 $221,412 $114,841 2.08
Participant Cost Test
(PCT) $155,595 $318,513 $162,918 2.05
Rate Impact Test
(RIM) $377,336 $221,412 ($155,925) 0.59
Lifecycle Revenue $0.00002
Impacts ($/kWh)

Memorandum
Table 14: Wattsmart Business Irrigation Cost-Effectiveness Results -PY2024 (Load Shape-
ID_Irrigation_General)
Effectiveness - Net Benefit/CostNPV Costs
Test $/kWh - Benefits Ratio
Total Resource Cost
Test(PTRC) + $0.103 $229,210 $304,154 $74,945 1.33
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.103 $229,210 $276,504 $47,294 1.21
I
Utility Cost Test
(UCT) $0.042 I $92,810 $276,504 $183,694 2.98
Participant Cost Test
(PCT) $198,882 $320,483 $121,601 1.61
Rate Impact Test
(RIM) $376,665 $276,504 ($100,161) 0.73
Lifecycle Revenue $0.00002
Impacts ($/kWh)
Table 15: Wattsmart Business Lighting Cost-Effectiveness Results -PY2024(Load Shape-
ID_Miscellaneous_Lighting)
ectiveness LevelizedNet -
Test $/kWh Benefits Benefits Ratio
Total Resource Cost
Test(PTRC) + $0.070 $1,771,106 $1,599,524 ($171,582) 0.90
Conservation Adder
Total Resource Cost
Test(TRC) No $0.070 $1,771,106 $1,454,113 ($316,993) 0.82
Adder
Utility Cost Test
(UCT) $0.037 $940,972 $1,454,113 $513,141 1.55
Participant Cost $1,309,472 $3,365,741 $2,056,269 2.57
Test(PCT)
Rate Impact Test
(RIM) $3,997,606 $1,454,113 ($2,543,493) 0.36
Lifecycle Revenue $0.00016
Impacts ($/kWh)

Memorandum
Table 16: Wattsmart Business Motors Cost-Effectiveness Results -PY2024(Load Shape-
ID_Industrial_Machinery_General)
Effectiveness - Net
NPV Costs
Test $/kWh Benefits Benefits Ratio
Total Resource Cost
Test(PTRC) + $0.062 $272,929 $319,145 $46,216 1.17
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.062 $272,929 $290,132 $17,203 1.06
Utility Cost Test
(UCT) $0.039 $168,675 $290,132 $121,457 1.72
Participant Cost Test
(PCT) $186,894 $442,618 $255,724 2.37
Rate Impact Test
(RIM) $552,949 $290,132 ($262,817) 0.52
Lifecycle Revenue $0.00002
Impacts ($/kWh)
Table 17. Wattsmart Business Refrigeration Cost-Effectiveness Results -PY2024(Load Shape-
ID_Warehouse_Refrigeration)
Effectiveness Test $/kWh �� Benefits Benefit/Cost Net
Ratio
Total Resource Cost
Test(PTRC) + $0.075 $85,734 $93,496 $7,762 1.09
Conservation Adder
Total Resource Cost
Test(TRC) No Adder $0.075 $85,734 $84,996 ($738) 0.99
Utility Cost Test
(UCT) $0.040 $46,322 $84,996 $38,674 1.83
Participant Cost Test
(PCT) $66,202 $157,081 $90,879 2.37
Rate Impact Test
(RIM) $185,219 $84,996 ($100,222) 0.46
Lifecycle Revenue $0.00001
Impacts ($/kWh)
10

APPENDIX
Appendix B: Demand Response Cost-effectiveness Results CONF

THIS APPENDIX IS CONFIDENTIAL IN ITS
ENTIRETY AND IS PROVIDED UNDER
SEPARATE COVER

APPENDIX
Appendix C: Irrigation Load Control Program Details CONF.

THIS APPENDIX IS CONFIDENTIAL IN ITS
ENTIRETY AND IS PROVIDED UNDER
SEPARATE COVER

APPENDIX
Appendix D: DSM Balancing Account

Rocky Mountain Power
Idaho Demand-Side Management
Program Revenue,Expenses,Carrying Charges&Accumulated Balance through 2024
Monthly Program Cash Basis Accrual Based
Costs-Fixed Accrued Carrying Accumulated Accumulated Carrying
Assets Program Costs Rate Recovery Charge Balance Balance Charge
2011 totals $ 2,669,984.25 $ 380,980.18 $ (5,356,975.10) $ 24,350.00
2012totals $ 3,371,757.21 $ (61,566.15) $ (5,245,004.78) $ (121.00)
2013 totals $ 3,815,665.87 $ (36,097.09) $ (4,024,338.96) $ (10,042.00)
2014totals $ 3,160,823.41 $ 219,529.47 $ (2,406,314.54) $ (498.00)
2015 totals $ 4,395,370.00 $ (195,089.94) $ (3,835,750.00) $ 2,182.00
2016totals $ 4,509,399.92 $ (35,969.12) $ (4,995,152.96) $ 1,977.00
2017 totals $ 3,969,554.68 $ (72,688.78) $ (5,210,303.47) $ (8,756.00)
2018 totals $ 4,629,011.61 $ 118,050.07 $ (5,142,441.57) $ (18,433.00)
2019 totals $ 4,766,993.90 $ 221,867.40 $ (4,481,049.78) $ (33,527.00)
2020 totals $ 5,750,656.17 $ (54,654.53) $ (4,594,645.16) $ (27,712.00)
2021 totals $ 4,671,716.19 $ (140,457.47) $ (4,713,415.69) $ (5,429.00)
2022totals $ 4,214,322.86 $ (67,870.85) $ (5,165,492.58) $ (9,983.00)
2023totals $ 4,776,667.36 $ 2,630,350.42 $ (5,604,868.02) $ (41,060.00)
January $ 401,471.95 $ (2,587,590.72) $ (408,495.47) $ (9,827.00) $ (2,371,889.17) $ (2,053,096.28) 5.00%
February $ 422,209.53 $ (147,296.25) $ (377,360.19) $ (9,789.00) $ (2,336,828.83) $ (2,165,332.19) 5.00%
March $ 367,064.40 $ 7,780.39 $ (344,737.53) $ (9,690.00) $ (2,324,191.96) $ (2,144,914.93) 5.00%
April $ 302,045.72 $ 67,682.92 $ (328,548.30) $ (9,739.00) $ (2,360,433.54) $ (2,113,473.59) 5.00%
May $ 365,925.41 $ (103,345.00) $ (345,030.37) $ (9,792.00) $ (2,349,330.50) $ (2,205,715.55) 5.00%
June $ 268,002.74 $ 59,006.60 $ (619,693.51) $ (10,522.00) $ (2,711,543.27) $ (2,508,921.72) 5.00%
July $ 430,297.58 $ (4,621.80) $ (1,000,995.07) $ (12,487.00) $ (3,294,727.76) $ (3,096,728.01) 5.00%
August $ 332,950.03 $ 21,121.00 $ (801,062.58) $ (14,703.00) $ (3,777,543.31) $ (3,558,422.56) 5.00%
September $ 498,143.55 $ 65,786.98 $ (661,740.37) $ (16,081.00) $ (3,957,221.13) $ (3,672,313.40) 5.00%
October $ 421,260.14 $ 6,738.77 $ (444,811.54) $ (16,537.00) $ (3,997,309.53) $ (3,705,663.03) 5.00%
November $ 425,588.46 $ (70,358.21) $ (404,555.91) $ (16,612.00) $ (3,992,888.98) $ (3,771,600.69) 5.00%
December $ 439,082.52 $ 96,320.07 $ (442,887.43) $ (16,645.00) $ (4,013,338.89) $ (3,695,730.53) 5.00%
2024totals $ 4,674,042.03 $ (2,588,775.25) $ (6,179,918.27) $ (152,424.00)
Pgm FA Totals $ 81,736,570.46 $ 317,608.36 $ (85,615,413.35) $ (134,496.00) $ (4,013,338.89) $ (3,695,730.53)

APPENDIX E
Incentive Adjustment Materials

'104 ROCKY MOUNTAIN 14107Lake West
North
,Utah 841 I6
POWER t
A DIVISION OF PACIFICORP
October 11, 2024
Changes to Wattsmart Homes Program in Idaho
As part of the Company's efforts for continual improvement, Rocky Mountain Power is planning
changes to the Wattsmart Homes program in Idaho, effective November 25, 2024. As summarized
in the tables below, these changes include incentive adjustments for dual fuel and ductless heat
pump offerings. Any incentive amounts for current Program offerings not mentioned in the
table below will remain unchanged. Existing incentive terms and conditions still apply. If you
have questions or need additional information,please contact us.
Existing Homes.
Currently Offered Offered Incentive
Measure Type Sub-category Incentive Effective
November 25,2024
Customer Contractor Customer Contractor
Multi-Head $1,500
Single Family $750 $50 $100
Ductless Heat Pump 8.1 HSPF2 Single-Head $1,000
16 SEER2 $100
Supplemental $400 $100 $600
(No Change)
Dual Fuel Heat Pump ?80 AFUE
>7.5 HSPF2 N/A N/A $1,000 $50
(Single Family) >14.3SEER2
It is the Company's intent to make ongoing adjustments to the incentives for certain measures in
response to market conditions (changes in material costs, product availability, price competition,
etc.), and stay in alignment with the Company's defined savings targets,incentive budget, and cost-
effectiveness requirements.

APPENDIX
Appendix F: Low Income Conservation Education Reports

Eastern Idaho Community Action Partnership
RMP Conservation Education Funding
Calendar Year 2020 2021 2022 2023 2024 2025
Annual Annual Annual Annual Annual 19 Quarter
Beginning Date/Balance 1/1 $ 47,833.29 1/1 S 32,840.41 1/1 $ 35,868.75 1/1 $ 30,194.04 1/1 $ 28,106.54 1/1 $ 9,118.8i-
Energy Conservation fund Payment date/amount $ 8/30 $ 16,000.00 8/17 $ 16,000.00 8/7 $ 16,000.00 $ $ -
Total $ 47,833.29 $ 48,840.41 $ 51,868.75 $ 46,194.04 $ 28,106.54 $ 9,118.88
Kits Purchased #of kits/purchase cost 500 Kits $ (12,975.00) 500 Kits $ (10,500.00) 500 Kits $ (17,415.00) 500 Kits $ (15,400.00) 600 kits $ (13,590.00) 600 kits $ -
Admin(reponing/kftorder process,etc)' $ - $ - $ - $ - $ (277.75) $
Postage $ (2,017.88) $ (2,471.66) $ (4,259.71) $ (2,640.00) $ (5,048.67) $ -
Professionalfees accountin &auditin fees $ $ $ $ 47.50 $ 71.24 $ -
Total $ (14,992.88) $ (12,971.66) $ (21,674.71) $ (18,087.50) $ (18,987.66) $
Endin Date/Balance 12/31 $ 32,840.41 12/31 $ 35,868.75 VJ31 $ 30,194.04 12/31 $ 28.106.54 12/31 $ 9,118.88 12/31 $ 9,118.88
RMP Kit Inventory
Calendar Year 2020 2021 2022 2023 2024 2025
Annual Annual Annual Annual Annual 1st Quarter
Beginning Date/Count 1/1 276 1/1 500 1/1 723 1/1 610 1/1 500 1/1 609
New Kits Ordered 7/29 500 9/3 500 11/9 500 9/15 500 600
Distributed to HH (276) (277) (608) (592) (486)
Dama ed/unreported 0 0 5 18 5
Ending Date/Count 12/31 500 12/31 723 12/31 610 12/31 500 12/31 609 12/31
Number of Households Served 276 277 608 592 486
Total Number of Families who Received Kits 188 201 390 431 372
Total Number of People who Received Kits 876 816 1670 1856 1668
Southeastern Idaho Community Action Agency
RMP Conservation Education Funding
Calendar Year 2020 2021 2022 2023 2024 2025
Annual Annual Annual Annual Annual 19 Quarlar
Beginning Date/Balance ill $ 2,250.00 1/1 $ 11,250.00 1/1 $ 20,250.00 1/1 $ 20,250.00 1/1 $ 3,222.50 1/1 $ 3,222.50
Energy Conservation fund Payment date/amount 11/6 $ 9,000.00 10/27 $ 9,000.00 $ $ $ $
Total $ 11,250.00 $ 20,250.00 $ 20,250.00 $ 20,250.00 $ 3,222.50 $ 3,222.50
Kits Purchased #of kits/purchase cost $ - $ - $ - 350 kits $ (17,027.50) $ - $ -
Postage $ $ $ $ $ $
Professional fees(accounting&auditing fees) $ $ $ $ $ $
Total $ $ - $ $ (17,027.50) $ $
Endin Date/Balance 12/31 11 250.00 12/31 $ 20,250.00 12131 $ 20 250.00 12/31 22 3 2 .50 12/31 222 3 .50 3131 3 222.50
RMP Kit Inventory`
Calendar Year 2020 2021 2022 2024
Annual Annual Annual
Beginning Date/Count 1/1 350 1/1 175 1/1 66 1/1 9 1/1 345 1/1 226
New Kits Ordered 0 0 0 10/20 350 0 0
Distributed to HH (40) (65) (45) (14) (119)
Unreported (135) (44) (12) 0 0 0
Ending Date/Count 12/31 175 12/31 66 12/31 9 12/31 345 12/31 226 12/31 226
Number of Households Served 40 65 45 14 119
Total Number of Families who Received Kits 40
Total Number of People who Received Kits 125 86 34 243
'SEICAA did not have available inventory record to confirm counts for years 2020-2022;Data include the most granular accounting available that SEICAA is able to provide to the Company.

APPENDIX
Appendix G: Wattsmart Battery Demand Response Event Details

Table 10 - Battery Control Events - CONSOLIDATED
Month Residential or Max of kW Potential
Jan Residential 543
Feb Residential 621
Mar Residential 645
Apr Residential 714
May Residential 744
Jun Residential 827
Jul Residential 846
Aug Residential 906
Sep Residential 960
Oct Residential 1,049
Nov Residential 1,141
Dec Residential 1,170
Grand Total 1,170
1,170 Max Potential @ site
1,279 Max Potential @ gen
0.09318 Line Loss Rate Residential
Table 10 - Battery Control Events
Mountain Time Event Residential or
Month Event Date kW Potential Reason for Event
Start/End Time Commercial
Jan 1/8/2024 2:35 AM to 1:40 AM 543 Residential Frequency
Jan 1/8/2024 7:19 AM to 7:24 AM 543 Residential Frequency
Jan 1/9/2024 1:55 AM to 2:00 AM 543 Residential Frequency
Feb 2/21/2024 9:14 AM to 9:19 AM 621 Residential Frequency
Feb 2/21/2024 1:32 PM to 1:37 PM 621 Residential Frequency
Feb 2/24/2024 9:13 AM to 9:18 PM 621 Residential Frequency
Mar 3/4/2024 8:48 PM to 8:53 PM 631 Residential Frequency
Mar 3/5/2024 8:05 AM to 8:10 AM 631 Residential Frequency
Mar 3/12/2024 11:08 AM to 11:13 AM 631 Residential Frequency
Mar 3/12/2024 2:46 PM to 2:51 PM 631 Residential Frequency
Mar 3/13/2024 12:07 AM to 12:12 AM 631 Residential Frequency
Mar 3/25/2024 3:56 PM to 4:01 PM 641 Residential Frequency
Mar 3/25/2024 4:28 PM to 4:33 PM 641 Residential Frequency
Mar 3/29/2024 10:09 AM to 10:14 AM 645 Residential Frequency
Apr 4/1/2024 2:05 AM to 2:10 AM 645 Residential Frequency
Apr 4/3/2024 9:41 PM to 9:46 PM 645 Residential Frequency
Apr 4/5/2024 1:45 PM to 1:50 PM 645 Residential Frequency
Apr 4/5/2024 3:07 PM to 3:12 PM 645 Residential Frequency
Apr 4/5/2024 4:44 PM to 4:49 PM 645 Residential Frequency
Apr 4/6/2024 8:36 PM to 8:41 PM 645 Residential Frequency
Apr 4/7/2024 1:00 AM to 1:05 AM 645 Residential Frequency
Apr 4/9/2024 1:00 AM to 1:05 AM 675 Residential Frequency

Mountain Time Event kW Potential Residential or
Reason for Event
Month Event Date Start/End Time Commercial
Apr 4/10/2024 10:02 AM to 10:07 AM 675 Residential L Frequency
Apr 4/10/2024 5:21 PM to 5:26 PM 675 Residential Frequency
Apr 4/11/2024 2:37 PM to 2:42 PM 675 Residential Frequency
Apr 4/12/2024 9:16 AM to 9:21 AM 675 Residential Frequency
Apr 4/14/2024 1:00 AM to 1:05 AM 675 Residential Frequency
Apr 4/15/2024 9:32 AM to 9:37 AM 675 Residential Frequency
Apr 4/16/2024 4:41 AM to 4:46 AM 684 Residential Frequency
Apr 4/16/2024 10:05 AM to 10:10 AM 684 Residential Frequency
Apr 4/16/2024 7:34 PM to 7:39 PM 684 Residential Frequency
Apr 4/21/2024 9:48 AM to 9:53 AM 684 Residential Frequency
Apr 4/22/2024 9:37 AM to 9:42 AM 684 Residential Frequency
Apr 4/24/2024 2:02 PM to 2:07 PM 684 Residential Frequency
Apr 4/25/2024 11:01 AM to 11:06 AM 709 Residential Frequency
Apr 4/26/2024 10:39 AM to 10:44 AM 709 Residential Frequency
Apr 4/26/2024 10:55 AM to 11:00 AM 714 Residential Frequency
Apr 4/27/2024 12:32 PM to 12:37 PM 714 Residential Frequency
Apr 4/28/2024 3:38 AM to 3:43 AM 714 Residential Frequency
Apr 4/29/2024 10:34 AM to 10:39 AM 714 Residential Frequency
May 5/1/2024 12:53 PM to 12:58 PM 714 Residential Frequency
May 5/2/2024 3:43 Pm to 3:48 PM 714 Residential Frequency
May 5/3/2024 9:34 AM to 9:39 AM 714 Residential Frequency
May 5/4/2024 6:05 PM to 6:10 PM 714 Residential Frequency
May 5/5/2024 1:00 AM to 1:05 AM 714 Residential Frequency
May 5/5/2024 8:54 PM to 8:59 PM 714 Residential Frequency
May 5/6/2024 8:37 AM to 8:42 AM 714 Residential Frequency
May 5/8/2024 9:06 AM to 9:11 AM 714 Residential Frequency
May 5/8/2024 2:20 PM to 2:25 PM 714 Residential Frequency
May 5/9/2024 2:23 PM to 2:28 PM 714 Residential Frequency
May 5/11/2024 7:39 AM to 7:44 AM 714 Residential Frequency
May 5/11/2024 7:45 AM to 7:50 AM 714 Residential Frequency
May 5/11/2024 7:49 AM to 7:54 AM 714 Residential Frequency
May 5/11/2024 7:57 AM to 8:02 AM 714 Residential Frequency
May 5/11/2024 8:01 AM to 8:06 AM 714 Residential Frequency
May 5/11/2024 8:30 AM to 8:35 AM 714 Residential Frequency
May 5/11/2024 8:33 AM to 8:38 AM 714 Residential Frequency
May 5/11/2024 8:35 AM to 8:40 AM 714 Residential Frequency
May 5/11/2024 11:04 AM to 11:09 AM 714 Residential Frequency
May 5/11/2024 3:55 PM to 4:00 PM 714 Residential Frequency
May 5/12/2024 8:06 AM to 8:11 AM 714 Residential Frequency
May 5/12/2024 8:48 AM to 8:53 AM 714 Residential Frequency
May 5/12/2024 9:00 AM to 9:05 AM 724 Residential Frequency
May 5/16/2024 12:26 PM to 12:31 PM 734 Residential Frequency
May 5/17/2024 7:49 AM to 7:54 AM 744 Residential Frequency

Mountain Time Event kW Potential Residential or
Reason for Event
Month Event Date Start/End Time Commercial
May 5/17/2024 8:00 AM to 8:05 AM 744 Residential L Frequency
May 5/18/2024 7:00 AM to 7:05 AM 744 Residential Frequency
May 5/20/2024 4:44 PM to 4:49 PM 744 Residential Frequency
May 5/24/2024 9:16 AM to 9:21 AM 744 Residential Frequency
May 5/24/2024 10:52 AM to 10:57 AM 744 Residential Frequency
May 5/24/2024 12:52 PM to 12:57 PM 744 Residential Frequency
May 5/24/2024 12:55 PM to 1:00 PM 744 Residential Frequency
May 5/24/2024 1:03 PM to 1:08 PM 744 Residential Frequency
May 5/26/2024 1:00 AM to 1:05 AM 744 Residential Frequency
May 5/28/2024 1:41 PM to 1:46 PM 744 Residential Frequency
May 5/29/2024 6:28 AM to 6:33 AM 744 Residential Frequency
May 5/29/2024 11:44 AM to 11:49 AM 744 Residential Frequency
May 5/29/2024 5:00 PM to 5:05 PM 744 Residential Frequency
May 5/31/2024 7:37 AM to 7:42AM 744 Residential Frequency
Jun 6/4/2024 11:08 PM to 11:13 PM 744 Residential Frequency
Jun 6/5/2024 5:35 PM to 5:40 PM 744 Residential Frequency
Jun 6/6/2024 3:09 PM to 3:14 PM 744 Residential Frequency
Jun 6/9/2024 9:39 AM to 9:44 AM 744 Residential Frequency
Jun 6/9/2024 10:04 AM to 10:09 AM 744 Residential Frequency
Jun 6/11/2024 9:02 AM to 9:07 AM 763 Residential Frequency
Jun 6/12/2024 7:51 AM to 7:56 AM 768 Residential Frequency
Jun 6/15/2024 4:06 PM to 4:11 PM 778 Residential Frequency
Jun 6/16/2024 1:18 AM to 1:23 AM 778 Residential Frequency
Jun 6/18/2024 10:16 AM to 10:21 AM 778 Residential Frequency
Jun 6/21/2024 4:30:00 PM to 4:35 PM 813 Residential Frequency
Jun 6/22/2024 8:20 AM to 8:25 AM 813 Residential Frequency
Jun 6/23/2024 8:21 AM to 8:26 AM 813 Residential Frequency
Jun 6/24/2024 2:56 PM to 3:01 PM 813 Residential Frequency
Jun 6/27/2024 7:08 AM to 7:12 AM 827 Residential Frequency
Jul 7/8/2024 8:45 AM to 8:50 AM 827 Residential Frequency
Jul 7/26/2024 7:21 PM to 7:26 PM 846 Residential Frequency
Aug 8/2/2024 7:57 AM to 8:02 AM 851 Residential Frequency
Aug 8/7/2024 11:44 AM to 11:49 AM 871 Residential Frequency
Aug 8/10/2024 9:17 AM to 9:22 AM 871 Residential Frequency
Aug 8/16/2024 2:57 PM to 3:02 PM 871 Residential Frequency
Aug 8/19/2024 2:04 PM to 2:08 PM 871 Residential Frequency
Aug 8/20/2024 6:41 PM to 6:46 PM 901 Residential Frequency
Aug 8/22/2024 5:43 PM to 5:48 PM 901 Residential Frequency
Aug 8/24/2024 7:31 AM to 7:36 AM 901 Residential Frequency
Aug 8/24/2024 12:42 PM to 12:47 PM 906 Residential Frequency
Aug 8/31/2024 1:37 AM to 1:42 AM 906 Residential Frequency
Sep 9/1/2024 9:02 AM to 9:07 AM 906 Residential Frequency
Sep 9/1/2024 1:00 PM to 1:05 PM 906 Residential Frequency

Mountain Time Event kW Potential Residential or
Reason for Event
Month Event Date Start/End Time Commercial
Sep 9/6/2024 2:12 PM to 2:17 PM 906 Residential L Frequency
Sep 9/9/2024 4:19 AM to 4:24 AM 906 Residential Frequency
Sep 9/11/2024 7:55 PM to 8:00 PM 940 Residential Frequency
Sep 9/11/2024 10:35 PM to 10:40 PM 940 Residential Frequency
Sep 9/12/2024 9:02 AM to 9:07 AM 940 Residential Frequency
Sep 9/12/2024 9:05 PM to 9:10 PM 940 Residential Frequency
Sep 9/16/2024 10:03 AM to 10:08 AM 940 Residential Frequency
Sep 9/17/2024 4:27 AM to 4:32 AM 940 Residential Frequency
Sep 9/18/2024 3:31 AM to 3:36 AM 955 Residential Frequency
Sep 9/20/2024 11:23 AM to 11:28 AM 960 Residential Frequency
Sep 9/21/2024 9:33 AM to 9:38 AM 960 Residential Frequency
Sep 9/24/2024 9:00 AM to 9:05 AM 960 Residential Frequency
Sep 9/30/2024 12:34 AM to 12:39 AM 960 Residential Frequency
Oct 10/5/2024 1:09 AM to 1:14 AM 960 Residential Frequency
Oct 10/7/2024 7:32 PM to 7:37 PM 960 Residential Frequency
Oct 10/8/2024 10:19AM to 10:24AM 960 Residential Frequency
Oct 10/15/2024 1:01AM to 1:06AM 994 Residential Frequency
Oct 10/15/2024 12:34PM to 12:39PM 994 Residential Frequency
Oct 10/15/2024 3:17PM to 3:22PM 994 Residential Frequency
Oct 10/19/2024 1:12AM to 1:17AM 994 Residential Frequency
Oct 10/19/2024 2:13AM to 2:18AM 994 Residential Frequency
Oct 10/20/2024 11:23PM to 11:28PM 994 Residential Frequency
Oct 10/20/2024 10:22PM to 10:27PM 994 Residential Frequency
Oct 10/20/2024 11:54PM to 11:59PM 994 Residential Frequency
Oct 10/21/2024 8:47AM to 8:52AM 999 Residential Frequency
Oct 10/28/2024 2:36PM to 2:41PM 1034 Residential Frequency
Oct 10/29/2024 7:48AM to 7:53AM 1049 Residential Frequency
Oct 10/30/2024 2:29PM to 2:34PM 1049 Residential Frequency
Nov 11/3/2024 6:01PM to 6:06PM 1049 Residential Frequency
Nov 11/4/2024 1:12PM to 1:17PM 1049 Residential Frequency
Nov 11/5/2024 10:44PM to 10:49PM 1087 Residential Frequency
Nov 11/7/2024 8:08AM to 8:13AM 1087 Residential Frequency
Nov 11/8/2024 4:05PM to 4:10PM 1107 Residential Frequency
Nov 11/8/2024 8:22PM to 8:27PM 1107 Residential Frequency
Nov 11/9/2024 6:14PM to 6:19PM 1107 Residential Frequency
Nov 11/11/2024 2:46AM to 2:51AM 1107 Residential Frequency
Nov 11/14/2024 2:21PM to 2:26PM 1107 Residential Frequency
Nov 11/16/2024 11:57AM to 12:02PM 1107 Residential Frequency
Nov 11/22/2024 9:45AM to 9:50AM 1124 Residential Frequency
Nov 11/22/2024 11:38AM to 11:43AM 1124 Residential Frequency
Nov 11/23/2024 11:46AM to 11:51AM 1124 Residential Frequency
Nov 11/23/2024 12:05PM to 12:10PM 1124 Residential Frequency
Nov 11/26/2024 1:34AM to 1:39AM 1141 Residential Frequency

Mountain Time Event Residential or
Month Event Date kW Potential Reason for Event
Start/End Time L Commercial
Nov 11/28/2024 9:00AM to 9:05AM 1141 Residential Frequency
Nov 11/30/2024 4:59PM to 5:05PM 1141 Residential Frequency
Dec 12/4/2024 4:32PM to 4:37PM 1141 Residential Frequency
Dec 12/5/2024 10:37AM to 10:42AM 1141 Residential Frequency
Dec 12/5/2024 4:30PM to 4:35PM 1141 Residential Frequency
Dec 12/6/2024 5:59AM to 6:04AM 1141 Residential Frequency
Dec 12/8/2024 5:12PM to 5:17PM 1141 Residential Frequency
Dec 12/12/2024 3:58PM to 4:03PM 1155 Residential Frequency
Dec 12/16/2024 2:44PM to 2:49PM 1155 Residential Frequency
Dec 12/20/2024 1:17AM to 1:22AM 1170 Residential Frequency
Dec 12/22/2024 3:33AM to 3:38AM 1170 Residential Frequency
Dec 12/25/2024 2:39PM to 2:44PM 1170 Residential Frequency
Dec 12/27/2024 5:52AM to 5:57AM 1170 Residential Frequency