202403082021 DSM Annual Report.pdf

1407 W. North Temple, Suite 330
Salt Lake City, Utah 84116
April 28, 2022
VIA ELECTRONIC FILING
Idaho Public Utilities Commission
11331 W Chinden Blvd
Building 8 Suite 201A
Boise, ID 83714
Attn: Jan Noriyuki
Commission Secretary
RE: CASE NO. PAC-E-05-10
IDAHO 2021 ANNUAL DEMAND SIDE MANAGEMENT REPORT
Dear Ms. Noriyuki:
Rocky Mountain Power hereby submits for electronic filing the 2021 Annual Demand Side
Management Report, pursuant to Order No. 29976 issued in Case No. PAC-E-05-10.
All formal correspondence and requests regarding this filing should be addressed to one of the
following:
By E-mail (preferred): [e-mail]
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] or Ted Weston, Idaho Regulatory
Affairs Manager, at [phone].
Sincerely,
Michael S. Snow
Manager, Regulatory Affairs
Enclosures
Page 1 of 16
2021 IDAHO Energy Efficiency and Peak
Reduction Annual Report
Issued April 28, 2022
Rocky Mountain Power
1407 West North Temple
Salt Lake City, UT 84116
pacificorp.com/environment/demand-side-management

Page 2 of 16

TABLE OF CONTENTS
EXECUTIVE SUMMARY ................................................................................................................................. 3
REGULATORY ACTIVITIES ............................................................................................................................. 4
MEETINGS WITH COMMISSION STAFF ........................................................................................................ 5
PORTFOLIO OF PROGRAMS ......................................................................................................................... 6
PEAK REDUCTION PROGRAMS ......................................................................................................................... 11
IRRIGATION LOAD CONTROL ....................................................................................................................... 11
ENERGY EFFICIENCY PROGRAMS ................................................................................................................. 6
WATTSMART HOMES .................................................................................................................................... 6
HOME ENERGY REPORTS PROGRAM ................................................................................................................. 7
LOW INCOME WEATHERIZATION ....................................................................................................................... 8
WATTSMART BUSINESS PROGRAM ........................................................................................................... 10
WATTSMART BUSINESS ................................................................................................................................... 10
EXPENDITURES ........................................................................................................................................... 13
TOTAL PORTFOLIO SAVINGS AND EXPENDITURES ........................................................................................... 13
GROSS SAVINGS BY MEASURE CATEGORY ................................................................................................ 13
LOAD CONTROL EVENTS ............................................................................................................................. 15
COST EFFECTIVENESS.................................................................................................................................. 15
TOTAL COST EFFECTIVENESS RESULTS BY PORTFOLIO AND PROGRAM ............................................................ 15

Page 3 of 16

EXECUTIVE SUMMARY

Rocky Mountain Power is a multi-jurisdictional electric utility providing retail service to
customers in Utah, Idaho, and Wyoming. Rocky Mountain Power, a division of PacifiCorp, serves
approximately 85,619 customers in southeastern Idaho. Rocky Mountain Power acquires energy
efficiency and peak reduction resources as cost-effective alternatives to the acquisition of supply-
side resources.

PacifiCorp develops an integrated resource plan (IRP)1 as a means of balancing cost, risk,
uncertainty, supply reliability/deliverability and long-run public policy goals. The IRP presents a
framework of future actions to ensure that Rocky Mountain Power continues to provide reliable,
reasonably priced service to customers. Energy Efficiency and peak management opportunities
are incorporated into the IRP based on their availability, characteristics, and costs.2

Rocky Mountain Power employs external implementers to administer its energy efficiency
programs.3 Evaluations for each program are performed by independent external evaluators to
validate energy and demand savings derived from Rocky Mountain Power’s energy efficiency
programs.4

Rocky Mountain Power utilizes earned media, customer communications, education, and
outreach advertising as well as program specific marketing to communicate the value of energy
efficiency, provide information regarding low-cost, no-cost energy efficiency measures and to
educate customers on the availability of programs, services, and incentives.5

This report provides details on program results, activities, and expenditures of the Customer
Efficiency Tariff Rider (“Schedule 191”) as of the reporting period from January 1, 2021, through
December 31, 2021. Rocky Mountain Power on behalf of its customers, invested $4.6 million in
energy efficiency resource acquisitions during the reporting period. The investment yielded
approximately 18.7 megawatt hours (“MWh”) at generator in first-year energy savings, and
approximately 3.7 megawatts (“MW”) of capacity reduction from energy efficiency. Net benefits

1 Information on PacifiCorp’s IRP can be found at https://www.pacificorp.com/energy/integrated-resource-
plan.html.
2 Information on PacfiCorp’s planning process can be found at https://www.pacificorp.com/environment/demand-
side-management.html under the “Rocky Mountain Power planning” section.
3 Information on program administration can be found at https://www.pacificorp.com/environment/demand-side-
management.html under the “Program administration” section.
4 Information on program evaluations can be found at https://www.pacificorp.com/environment/demand-side-
management.html under the “Reports and program evaluations by state” section.
5 Information on communications and outreach can be found at https://www.pacificorp.com/environment/demand-
side-management.html under the “Communications and outreach” section.

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based on the projected value of the energy savings over the life of the individual measures is
estimated at $1,048 million.6

The energy efficiency portfolio was cost effective based on the Utility Cost Test (UCT), which is
the primary cost benefit test observed in Idaho. Cost-effectiveness results are provided in Table
9 and Appendix A.

In 2021, Rocky Mountain Power’s DSM portfolio included the following programs:

• Energy Efficiency Programs:
 Wattsmart Homes
 Home Energy Reports
 Low Income Weatherization
 Wattsmart Business
 Peak Reduction Program:
 Irrigation Load Control

Pursuant to Commission Order No. 32196, the Idaho Irrigation Load Control Program is treated
as a system power supply with expenses flowing through base rates in lieu of the Schedule 191
DSM tariff rider. Notwithstanding, information on the Irrigation Load Control Program is provided
in this report.
REGULATORY ACTIVITIES

During the 2021 reporting period, the Company filed compliance and/or informational reports,
updates, notices, and requests with the Commission in support of Company DSM programs. The
following is a list of those activities:
• On January 29, 2021, the Company circulated the DSM balancing account report for the
fourth quarter of 2020.
• On April 20, 2021, pursuant to Order No. 29976, the Company submitted its 2020 Idaho
Energy Efficiency and Peak Reduction Annual Report in Case No. PAC-E-05-10.
• On May 5, 2021, the Company circulated the DSM balancing account report for the first
quarter of 2021.
• On May 7, 2021, consistent with the flexible tariff process, a notice of changes to the
Wattsmart Homes program was posted on the program website,7 45 days prior to going
into effect June 21, 2021. Program changes included adjusted incentive levels and
eligibility criteria for various measure categories.

6 See cost effectiveness Appendix A.
7 https://www.rockymountainpower.net/savings-energy-choices/home.html

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• On July 15, 2021, the Company applied for approval of a new battery demand response
program in Case No. PAC-E-21-16. The Commission approved the Company’s application
in Order No. 35370 issued April 14, 2022.
• On August 2, 2021, the Company circulated the DSM balancing account report for the
second quarter of 2021.
• On September 14, 2021, consistent with the flexible tariff process, a notice of changes to
the Wattsmart Business program was posted on the program website,8 45 days prior to
going into effect November 1, 2021. Program changes included adjusted incentive levels
and eligibility criteria for various measure categories.
• On November 4, the Company circulated the DSM balancing account report for the third
quarter of 2021.
• On November 17, 2020, consistent with the 45-day notice process for maximum “up to”
incentives, a notice of change to the Wattsmart Business program was posted on the
program website,9 45 days prior to going into effect January 1, 2021. Program changes
included the discontinuation of Light Emitting Diode (LED) lamps due to market adoption.
• On December 20, 2021, the Company circulated its 2021 communications plan with Idaho
Commission Staff.
MEETINGS WITH COMMISSION STAFF

The Company consulted with Idaho Public Utilities Commission Staff throughout 2021, with formal
presentations on the following matters:
June 9, 2021
• Discussed the Company’s 2020 Idaho Energy Efficiency and Peak Reduction Annual Report and
Irrigation Load Control Tracking Metrics.
• Reviewed the 2021 Year-to-Date Status and forecast.
• Reviewed the status of the Schedule 191 balancing account.
• Provided updates on the Wattsmart Homes and Wattsmart Business programs; and
• Discussed the concept of a new battery demand response program.
December 14, 2021
• Discussed the 2021 Integrated Resource Plan selections.
• Discussed the Year-to-Date Status of 2021.
• Reviewed the 2022 forecast.
• Reviewed the status of the Schedule 191 balancing account: and
• Reviewed the program evaluation dashboard.

8 https://www.rockymountainpower.net/savings-energy-choices/business.html
9 https://www.rockymountainpower.net/savings-energy-choices/home.html

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PORTFOLIO OF PROGRAMS
ENERGY EFFICIENCY PROGRAMS
WATTSMART HOMES

Program Description

The Wattsmart Homes program is designed to provide access to incentives for using more
efficient products and services installed or received by residential customers in the following
housing types:
 New Construction Homes
 Single Family Existing Homes
 Multi-family Housing Units
 Manufactured Homes

The program applies to residential customers under Electrical Service Schedules 1 or 36.
Landlords who own rental property where the tenant is billed under Electric Service Schedules 1
or 36 also qualify.

The Wattsmart Homes program did not pass the UCT cost tests with a benefit cost ratio of 0.99
for 2021.

Program Performance and Major Achievements in 2021

 The Wattsmart Homes program generated 880,621 kWh savings at the site.
 Disbursed $90 thousand in incentives.
 The program added measures for dual fuel heat pumps, ductless heap pump conversions,
and variable capacity heat pumps for existing homes.
 The program updated the offerings for new single family, multi-family, and manufactured
homes to include Energy Star certification, Northwest Energy Efficient Manufactured
homes (NEEM), Home Energy Rating System (HERS), and dual fuel heat pumps as a
standalone offering.
 The program also discontinued offering incentives for LED (Light Emitting Diodes) bulbs
and fixtures due to market transformation and adoption of LED technology.

Additional information on the program administration can be found on the Company’s website
under the Program administration section:
https://www.pacificorp.com/environment/demand-side-management.html

Direct Link to Wattsmart Homes program administration:
https://www.pacificorp.com/content/dam/pcorp/documents/en/pacificorp/environment/dsm/idaho/Id
aho_Program_Administration_Wattsmart_Homes.pdf

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HOME ENERGY REPORTS PROGRAM

Program Description

The Home Energy Reports program is a behavioral program designed to decrease participant
energy usage by providing comparative energy usage data for similar homes located in the same
geographical area. Additionally, the report provides the participants with tips to decrease their
energy usage.

The Home Energy Reports program passed the UCT with a cost benefit ratio of 10.40 for 2021.

Program Performance and Major Achievements in 2021

 Total savings for 2021 in MWh was 4,239, which equates to 4,238,790 in kWh savings.
 In 2020 reports were initially provided to approximately 18,000, which was expanded to
41,000 customers in July 2020.
 Enhancements to reports were made during 2021.
o More individual recommendations to save energy
o Greater insights on how customers are using energy by appliance type
o Home characteristics included in report with easy access to update home profile
o Monthly usage history included in reports
 Online portal was improved to provide greater insights for all residential customers.
 In 2021, only 0.24% of customers (91 customers) have requested to be removed from the
program.

Additional information on the program administration can be found on the Company’s website
under the Program administration section:
https://www.pacificorp.com/environment/demand-side-management.html

Direct Link to Home Energy Reports program administration:
https://www.pacificorp.com/content/dam/pcorp/documents/en/pacificorp/environment/dsm/idaho/Id
aho_Program_Administration_Home_Energy_Reports.pdf

Page 8 of 16

LOW INCOME WEATHERIZATION

Program Description

The Low-Income Weatherization program provides energy efficiency services through a
partnership between the Company and local non-profit agencies to residential customers who
meet the income-eligible guidelines. Services are provided at no cost to the program participants.

The Company contracts with Eastern Idaho Community Action Partnership, Inc. (“EICAP”) and
Southeastern Idaho Community Action Agency (“SEICAA”) to provide services. The two agencies
receive federal funds allocated to and administered by the Idaho Department of Health and
Welfare (“IDHW”). Energy efficiency measures are installed in the homes of income eligible
households throughout the Company’s service territory by EICAP and SEICAA. The Company is
required to fund 85 percent of the cost of approved measures, pursuant to Commission Order
No. 32151. Under Advice No. 19-01 filed with Idaho Public Utilities Commission on January 16,
2019, Commission approved reimbursement of up to 100% of related installed costs of ductless
heat pumps, effective March 6, 2019. Agencies cover remaining costs with the funding received
by IDHW.

The Low-Income Weatherization program passed the PTRC with a cost benefit ratio of 4.31 for
2021. Under direction of Case No. GNR-E12-01, Low Income Weatherization program uses the 10
percent conservation adder to the total resource cost test as its primary cost test.

Program Performance and Major Achievements in 2021

 In 2021, the program achieved savings at site of 35,325
 Number of homes served 27

Low Income Energy Conservation Education

Commission Order No. 32788 authorized the Company to fund the Low-Income Energy
Conservation Education with $25,000 annually. These education services are provided by EICAP
and SEICAA and target participants who receive Low Income Home Energy Assistance Program
(“LIHEAP”) funds. EICAP received $16,000 program year (“PY”) 2021 funding by the beginning of
their 2021/2022 LIHEAP program year. SEICAA received $9,000 at the beginning of their
2021/2022 LIHEAP program year. SEICAA did not purchase kits as they had inventory of kits
purchased with PY 2020 funds to distribute which due to COVID-19 restrictions in operations,
weren’t disbursed during the PY 2020 program year. Due to COVID-19 pandemic, agencies faced
challenges in their effort to distribute/deliver conservation kits to low-income customers and
increased use of funds to ship kits to program clients. Most kits were distributed by mail due to
limited contact with participants. While the conservation education activities do result in energy
savings, the savings are not considered when calculating the performance results of the Low-
Income Weatherization program, other energy efficiency programs or portfolios results.

Page 9 of 16

The agencies provided a conservation education curriculum to households and reported the
following activities and program specifics for 2021 in Table 1 below.

Table 1
2021 Conservation Education Activities
$ 16,000.00 $ 9,000.00
$ 12,971.66 $ -
$ 35,868.75 $ 18,000.00
277 65

Distribution

EICAP purchased 500 kits using PY 2021 funds. The new kits include two 9W LED bulbs, a window
insulation kit, a vinyl foam weatherstrip, two bimetal refrigerator/freezer thermometers, a
power strip plus surge protector, ten foam electrical outlet sealing gaskets, and an energy saving
wheel (information card). Due to COVID-19, EICAP continued distribution of their PY 2020 kits by
mail as they did not interact with clients. As of December 31, 2021, EICAP has 500 kits purchased
in 2021 in their inventory.

EICAP’s program objective was to educate Rocky Mountain Power customers on how to conserve
energy through useful tips and tools to help them save year-round. They served Rocky Mountain
Power households that received energy assistance and/or requested energy conservation
education.

SEICAA did not purchase kits in 2021 and intends to utilize PY 2021 funds combined with the PY
2022 funding to purchase new kits as well as reserve some of the fund’s shipping and
administrative costs associated with modified operations under COVID-19 restrictions.

Table 2 below provides information regarding the education offered by the agencies.

Table 2
Additional Information on Conservation Education by Agencies
Educate Rocky Mountain Power
customers about how to
conserve energy.
monthly bills for participants of
the LIHEAP program.
Target Audience
customers who receive Low
Income Home Energy Assistance
Heat (LIHEAP) Heat and Crisis .
received weatherization program
services as a priority. Households
can also be identified through
SEICAA's other programs.

Page 10 of 16

EICAP SEICAA
How Company
Funds Were Used
Funds used to purchase energy
efficiency kits in August 2021 and
for shipping of kits.
for shipping cost and will use
remaining to purchase kits in CY
2022.

Additional information on the program administration can be found on the Company’s website
under the Program administration section:
https://www.pacificorp.com/environment/demand-side-management.html

Direct Link to Low Income Weatherization program administration:
https://www.pacificorp.com/content/dam/pcorp/documents/en/pacificorp/environment/dsm/idaho/Id
aho_Program_Administration_Low_Income.pdf

WATTSMART BUSINESS PROGRAM

WATTSMART BUSINESS

Program Description

The commercial, industrial, and agricultural energy efficiency program portfolio is offered
through a single Non-Residential Energy Efficiency program called Wattsmart Business.
Wattsmart Business is designed to influence new and existing non-residential customers to
increase the efficiency of electric energy usage both through the installation of efficient
equipment as well as adoption of improved energy management protocols. Qualifying measures
include those which produce verifiable electric energy efficiency improvements compared to an
established baseline.
Wattsmart Business offerings 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 analysis of 1.85.

Page 11 of 16

Program Performance and Major Achievements in 2021

 In 2021, the program achieved gross energy savings at site of 11,863,445 kWh.
 Distributed incentives of $1,497,466.
 To foster continued growth and utilization of the Wattsmart Business Vendor Network
(WBVN) and to increase customer satisfaction, the Company continued to employ full-
time Idaho-based lighting staff member. This staff member provides an outreach and
support role to both vendors and customers interested in lighting incentives.
 In 2021, participating WBVN vendors continued receiving quarterly vendor
performance scorecards to provide timely feedback and encourage vendors to strive
to reach “Premium” status, which entitles qualifying vendors to improved visibility
and enhanced co-branding with Rocky Mountain Power. In 2021, two more
Wattsmart Business Vendors achieved premium status, bringing the total number to
three.

Additional information on the program administration can be found on the Company’s website
under the Program administration section:
https://www.pacificorp.com/environment/demand-side-management.html

Direct Link to Wattsmart Business program administration:
https://www.pacificorp.com/content/dam/pcorp/documents/en/pacificorp/environment/dsm/idaho/Id
aho_Program_Administration_NonResidential.pdf

PEAK REDUCTION PROGRAMS
IRRIGATION LOAD CONTROL

Program Description

The irrigation load control program is offered to irrigation customers receiving electric service on
Schedule 10, Irrigation and Soil Drainage Pumping Power Service. Participants enroll in the
program with a third-party administrator and allow the curtailment of their electricity usage in
exchange for an incentive. Customer incentives are based on the site’s average available load
during load control program hours, adjusted by opt outs or non-participation.

For most participants, their irrigation pumps are set up with a dispatchable two-way control
system giving Rocky Mountain Power control over their loads. Participants are notified four
hours ahead of control events and have the choice to opt-out of a limited number of dispatch
events per season.

Page 12 of 16

The Irrigation Load control program passed the UCT cost test for 2021.

Program Performance and Major Achievements in 2021

 There were 7 load control events initiated in 2021. All events were mandatory.
 The available load from the Irrigation Program can be utilized as reserves which provides
value to the program and benefits the customer.
 The real-time Irrigation pilot continued during the 2021 season to test equipment
requirements, system responsiveness, and impact on irrigators.
 Customers were given a 20% incentive bonus for participation in general.
 Total customers participating in the program are 167, participation sites 1,204.
 Total enrolled MW (Gross -at Gen) in 2021 is 193, maximum realized MW (at Gen) is 155.

Additional information on the program administration can be found on the Company’s website
under the Program administration section:
https://www.pacificorp.com/environment/demand-side-management.html

Direct Link to Irrigation Load Control program administration:
https://www.pacificorp.com/content/dam/pcorp/documents/en/pacificorp/environment/dsm/idaho/Id
aho_Program_Administration_Irrigation_Load_Control.pdf

Page 13 of 16

EXPENDITURES

TOTAL ENERGY EFFICIENCY PORTFOLIO SAVINGS AND EXPENDITURES

Table 3
Program Results for January 1, 2021– December 31, 202110
Energy Efficiency Programs kWh/Yr. Savings
(at site)
kWh/Yr. Savings
(at gen)
Program
Expenditures
Total Residential 5,154,423 5,621,465 $ 735,412

Total Wattsmart Business 11,863,445 13,070,972 $ 3,392,844

Total Energy Efficiency 17,017,868 18,692,437 $ 4,128,258
Other Portfolio Expenditures
Total Other Portfolio Expenditures $ 456,356

Total Idaho Energy Efficiency Portfolio Expenditures $ 4,584,793

GROSS SAVINGS BY MEASURE CATEGORY

Table 4
2021 Annual Savings by Wattsmart Homes
Measure Category Total kWh (at Site) Total Incentive
Appliances 2,609 $ 1,150 29
Building Shell 16,466 $ 8,003 13,517
Electronics 68 $ 20 2
Energy Kits 60,397 $ 2,168 328
HVAC 193,067 $ 35,424 339
Lighting 545,333 $ 24,914 27,747
Water Heating 16,150 $ 5,800 10
Whole Home 20,710 $ 5,000 5
Whole Building 20,885 $ 6,800 15
Transportation 4,623 $ 310 3

10 The energy efficiency reported savings are gross, ex-ante. The values at generation include line losses between
the customer site and the generation source.

Page 14 of 16

Table 5
Low Income Homes Served and Measures Installed
Measure Type Installed
Air Sealed/Infiltration 22
Insulation 71
Attic Ventilation 15
Lighting CFL/LED 25
Furnace Repair or Replacement 13
Duct Sealing and/or Insulation 13
Ductless Heat Pump 2
Thermal Doors and/or Window Replacement 17
Water Heater Repair 13

Table 6
Wattsmart Business Savings by Sector
Sector Total Incentive
Commercial 8,377,602 $ 1,104,165
Industrial 190,037 $ 21,175
Irrigation 3,295,806 $ 372,127

Table 7
2021 Annual Net Savings by Wattsmart Business
Measure Category Total kWh (at Site) Total Incentive
Building Shell 19,560 $ 5,416 6
Compressed Air 15,603 $ 2,340 1
Energy Management 250,345 $ 5,007 4
HVAC 534,434 $ 62,633 15
Irrigation 3,958,599 $ 462,042 190
Lighting 4,172,213 $ 511,087 327
Motors 2,671,538 $ 368,873 8
Refrigeration 241,152 $ 36,173 3
Energy Project Manager Co-Funding $ 43,895 1

Page 15 of 16

LOAD CONTROL EVENTS

Table 8
Irrigation Load Control Events11
Date Event Event Times
6/14/2021 1 8:00 PM - 9:00 PM MDT 155
6/16/2021 2 8:00 PM - 9:00 PM MDT 145
7/7/2021 3 5:00 PM - 9:00 PM MDT 145
7/12/2021 4 4:00 PM - 8:00 PM MDT 121
7/21/2021 5 5:00 PM - 9:00 PM MDT 125
7/28/2021 6 8:00 PM - 9:00 PM MDT 65
7/29/2021 7 7:00 PM - 9:00 PM MDT 79

Table 9
Irrigation Load Program Performance
Total Enrolled MW (Gross – at Gen) 193 MW
Average Realized Load MW (at Gen) 119 MW
Maximum Realized Load MW (at Gen) 155 MW
Participation Customers 167
Participation (Sites) 1,204
COST EFFECTIVENESS

TOTAL COST EFFECTIVENESS RESULTS BY PORTFOLIO AND PROGRAM

Program cost effectiveness is performed using a Company specific modeling tool, created by a
third-party consultant. The tool is designed to incorporate PacifiCorp data and values such as
avoided costs, and generally follows the methodology specified in California’s Standard Practice
Manual. The analysis assesses the costs and benefits of 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.
Each of the cost-effectiveness tests for Rocky Mountain Power’s programs is outlined below. The
primary cost/benefit test observed in Idaho is the UCT for all programs other than the Low-
Income Weatherization program, which uses the PTRC.12

11 (v) = voluntary events
12 Under direction of Case No. GNR-E-12-01, Low Income Weatherization program uses the 10 percent energy
conservation adder to the total resource cost test.

Page 16 of 16

• PacifiCorp Total Resource Test (PTRC) 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 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 (UCT) Test also called the program administrator cost test, provides a benefit
to cost perspective from the utility only. The test compares the total utility cost incurred
to the benefit/value of the energy and capacity saved and contains no customer costs or
benefits in calculation of the ratio.
• Participant Cost Test (PCT) compares the portion of the resource paid directly by
participants to the savings realized by the participants.
• Ratepayer Impact Cost Test (RIM) 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 the rates remaining fixed costs are spread over
fewer kilowatt-hours.
Table 10
2021 Cost-Effectiveness Results by Program13
Program 14
Irrigation Load Control Program15 Pass Pass Pass Pass Pass
Energy Efficiency Portfolio (inc. LIW) 1.13 1.03 1.68 2.20 0.47
Energy Efficiency Portfolio (exc. LIW) 1.07 0.97 1.73 2.23 0.48
Non-Residential Energy Efficiency Portfolio 1.20 1.09 1.85 2.65 0.45
Residential Energy Efficiency Portfolio 1.19 1.12 1.99 1.29 0.75
Low Income Weatherization16 4.31 4.28 0.23 n/a 0.19
Home Energy Reporting 11.44 10.40 10.40 n/a 1.88
Wattsmart Homes 0.34 0.31 0.99 0.64 0.38
Wattsmart Business 1.20 1.09 1.85 2.65 0.45

Portfolio-level cost effectiveness includes portfolio costs, such as the Potential Assessment and
DSM system database. Sector-level cost effectiveness, reported in the Residential and Non-
Residential sections of this report, includes sector-specific evaluation, measurement, and
verification expenditures.
The Company includes quantifiable non-energy impacts at the portfolio and residential level, as
well as the Wattsmart Homes and Low-Income Weatherization program level.

13 Cost-effectiveness memo detail is provided in Appendix A.
14 The Low-Income Weatherization and Wattsmart Homes programs include non-energy impacts.
15 A “Pass” designation equates to a benefit cost ratio of 1.0 or better.
16 Low-Income Weatherization conservation education funding is excluded from the program level cost-
effectiveness testing but is included in the portfolio and residential sector cost-effectiveness.
APPENDIX

Appendix A: Cost-effectiveness Results1

1 Cost-effectiveness results were generated by Applied Energy Group (AEG) using the approved Cost-effectiveness
methodologies.

Applied Energy Group, Inc. | appliedenergygroup.com 1
MEMORANDUM
To: Alesha Pino, PacifiCorp
From: Andrew Cottrell, Andy Hudson, Dylan Royalty, AEG
Date: April 25, 2022
Re: PacifiCorp Idaho Portfolio and Sector Level Cost-Effectiveness Results (including Low-Income) – PY2021

AEG estimated the cost-effectiveness of PacifiCorp’s overall energy efficiency portfolio in the state of Idaho based
on Program Year (PY) 2021 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 following cost
effectiveness tests: Total Resource Cost Test (TRC), the 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: Portfolio Level Costs, Nominal - PY2021
Table 3: Benefit/Cost Ratios by Portfolio Type
Table 4: 2021 Total Portfolio Cost-Effectiveness Results (Including NEBs)
Table 5: 2021 Total Portfolio Cost-Effectiveness Results (Without NEBs)
Table 6: 2021 C&I Energy Efficiency Sector Cost-Effectiveness Results
Table 7: 2021 Residential Energy Efficiency Sector Cost-Effectiveness Results (Including NEBs)
Table 8: 2021 Residential Energy Efficiency Sector Cost-Effectiveness Results (Without NEBs)
Table 9: 2021 Low Income NEBs
Table 10: 2021 Home Energy Savings NEBs by Measure
The following assumptions were utilized in the analysis:
 Avoided Costs: Hourly values provided by PacifiCorp based on the 2021 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.

Applied Energy Group, Inc. | appliedenergygroup.com 2
 Other Economic Assumptions: Discount rate, line loss, retail rate, energy-to-capacity conversion factor, and
inflation rate values were provided by PacifiCorp and are presented in Error! Reference source not
found. below.
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
Parameter PY2021
Discount Rate 6.92%
Residential Line Loss 8.59%
Commercial Line Loss 3.83%
Industrial Line Loss 9.05%
Irrigation Line Loss 9.06%
Residential Energy Rate* ($/kWh) $0.1013
Commercial Energy Rate* ($/kWh) $0.0872
Industrial Energy Rate* ($/kWh) $0.0636
Irrigation Energy Rate* ($/kWh) $0.0907
Inflation Rate 2.28%
Table 2: Portfolio Level Costs, Nominal - PY20211
Portfolio Level Expense Cost
C&I Evaluation Costs $157,237
Residential Evaluation Costs $70,187
Low Income Energy Conservation Education $0
Outreach & Communications $172,894
Potential Study $5,611
System Support $50,607
Total $456,536
Tables 3 through 8 present the cost-effectiveness results at the portfolio and sector levels. Tables 9 and 10 present
the NEBs impacts for the low income and HES programs.
Table 3: Benefit/Cost Ratios by Portfolio Type
Cost-Effectiveness Test PTRC TRC UCT PCT RIM
Total Portfolio (Including NEBs) 1.13 1.03 1.68 2.30 0.47
Total Portfolio 1.05 0.95 1.68 2.21 0.47
C&I Programs 1.20 1.09 1.85 2.65 0.45
Residential (Including NEBs) 1.19 1.12 1.99 1.29 0.75
Residential 0.84 0.76 1.99 0.92 0.75

1 To align with annual budget expectations, cost-effectiveness inputs are presented in nominal dollars.

Applied Energy Group, Inc. | appliedenergygroup.com 3
Table 4: 2021 Total Portfolio Cost-Effectiveness Results (Including NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits
Net
Benefits
Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder
$0.0772 $8,114,961 $9,155,836 $1,040,874 1.13
Total Resource Cost Test (TRC) No
Adder
$0.0772 $8,114,961 $8,384,328 $269,367 1.03
Utility Cost Test (UCT) $0.0436 $4,584,793 $7,723,201 $3,138,408 1.68
Participant Cost Test (PCT) $6,075,307 $13,984,847 $7,909,540 2.30
Rate Impact Test (RIM) $16,299,980 $7,723,201 -$8,576,779 0.47
Lifecycle Revenue Impacts ($/kWh) $0.0004338
Discounted Participant Payback
(years)
4.17
Table 5: 2021 Total Portfolio Cost-Effectiveness Results (Without NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits
Net
Benefits
Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder
$0.0772 $8,114,961 $8,486,583 $371,622 1.05
Total Resource Cost Test (TRC) No
Adder
$0.0772 $8,114,961 $7,715,076 -$399,886 0.95
Utility Cost Test (UCT) $0.0436 $4,584,793 $7,723,201 $3,138,408 1.68
Participant Cost Test (PCT) $6,075,307 $13,421,261 $7,345,954 2.21
Rate Impact Test (RIM) $16,299,980 $7,723,201 -$8,576,779 0.47
Lifecycle Revenue Impacts ($/kWh) $0.0004338
Discounted Participant Payback
(years)
4.17
Table 6: 2021 C&I Energy Efficiency Sector Cost-Effectiveness Results
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits
Net
Benefits
Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder
$0.0614 $5,754,179 $6,885,927 $1,131,747 1.20
Total Resource Cost Test (TRC) No
Adder
$0.0614 $5,754,179 $6,259,933 $505,754 1.09
Utility Cost Test (UCT) $0.0362 $3,392,844 $6,259,933 $2,867,089 1.85
Participant Cost Test (PCT) $4,523,093 $11,990,073 $7,466,979 2.65
Rate Impact Test (RIM) $13,885,451 $6,259,933 -$7,625,517 0.45
Lifecycle Revenue Impacts ($/kWh) $0.0005692
Discounted Participant Payback
(years)
4.81

Applied Energy Group, Inc. | appliedenergygroup.com 4
Table 7: 2021 Residential Energy Efficiency Sector Cost-Effectiveness Results (Including NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder
$0.1829 $1,904,246 $2,269,909 $365,663 1.19
Total Resource Cost Test (TRC) No
Adder
$0.1829 $1,904,246 $2,124,395 $220,149 1.12
Utility Cost Test (UCT) $0.0706 $735,412 $1,463,268 $727,855 1.99
Participant Cost Test (PCT) $1,552,214 $1,994,775 $442,561 1.29
Rate Impact Test (RIM) $1,957,993 $1,463,268 -$494,725 0.75
Lifecycle Revenue Impacts ($/kWh) $0.0000521
Discounted Participant Payback
(years)
3.01
Table 8: 2021 Residential Energy Efficiency Sector Cost-Effectiveness Results (Without NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder
$0.1829 $1,904,246 $1,600,657 -$303,589 0.84
Total Resource Cost Test (TRC) No
Adder
$0.1829 $1,904,246 $1,455,142 -$449,103 0.76
Utility Cost Test (UCT) $0.0706 $735,412 $1,463,268 $727,855 1.99
Participant Cost Test (PCT) $1,552,214 $1,431,188 -$121,026 0.92
Rate Impact Test (RIM) $1,957,993 $1,463,268 -$494,725 0.75
Lifecycle Revenue Impacts ($/kWh) $0.0000521
Discounted Participant Payback
(years)
3.01
Table 9: 2021 Low Income NEBs
Non-Energy Benefit NPV Program
Impact
Perspective
Adjusted
Total NEBs $630,561 PTRC, TRC

Table 10: 2021 Home Energy Savings NEBs by Measure
Measure Name Total NEBs
($/yr) Quantity Measure Life Discount Rate Total NPV
Benefits
Appliances $156 29 14.0 6.92% $1,341
Energy Kits $5,333 328 10.1 6.92% $37,350

Applied Energy Group, Inc. | appliedenergygroup.com 1
MEMORANDUM
To: Alesha Pino, PacifiCorp
From: Andrew Cottrell, Andy Hudson, Dylan Royalty, AEG
Date: April 25, 2022
Re: PacifiCorp Idaho Portfolio and Sector Level Cost-Effectiveness Results (without Low-Income) – PY2021

AEG estimated the cost-effectiveness of PacifiCorp’s overall energy efficiency portfolio in the state of Idaho based
on Program Year (PY) 2021 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 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: Portfolio Level Costs, Nominal - PY2021
Table 3: Benefit/Cost Ratios by Portfolio Type
Table 4: 2021 Total Portfolio Cost-Effectiveness Results (Including NEBs)
Table 5: 2021 Total Portfolio Cost-Effectiveness Results (Without NEBs)
Table 6: 2021 C&I Energy Efficiency Sector Cost-Effectiveness Results
Table 7: 2021 Residential Energy Efficiency Sector Cost-Effectiveness Results (Including NEBs)
Table 8: 2021 Residential Energy Efficiency Sector Cost-Effectiveness Results (Without NEBs)
Table 9: 2021 Home Energy Savings NEBs by Measure

The following assumptions were utilized in the analysis:
 Avoided Costs: Hourly values provided by PacifiCorp based on the 2021 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.

Applied Energy Group, Inc. | appliedenergygroup.com 2
 Other Economic Assumptions: Discount rate, line loss, retail rate, energy-to-capacity conversion factor, and
inflation rate values were provided by PacifiCorp and are presented in Error! Reference source not
found. below.

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
Parameter PY2021
Discount Rate 6.92%
Residential Line Loss 8.59%
Commercial Line Loss 3.83%
Industrial Line Loss 9.05%
Irrigation Line Loss 9.06%
Residential Energy Rate* ($/kWh) $0.1013
Commercial Energy Rate* ($/kWh) $0.0872
Industrial Energy Rate* ($/kWh) $0.0636
Irrigation Energy Rate* ($/kWh) $0.0907
Inflation Rate 2.28%
Table 2: Portfolio Level Costs, Nominal - PY20211
Portfolio Level Expense Cost
C&I Evaluation Costs $157,237
Residential Evaluation Costs $70,187
Low Income Energy Conservation Education $0
Outreach & Communications $172,894
Potential Study $5,611
System Support $50,607
Total $456,536
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
Cost-Effectiveness Test PTRC TRC UCT PCT RIM
Total Portfolio (Including NEBs) 1.07 0.97 1.73 2.24 0.48
Total Portfolio 1.06 0.96 1.73 2.23 0.48
Commercial 1.20 1.09 1.85 2.65 0.45
Residential (Including NEBs) 0.92 0.83 2.45 0.92 0.80

1 To align with annual budget expectations, cost-effectiveness inputs are presented in nominal dollars.

Applied Energy Group, Inc. | appliedenergygroup.com 3
Residential 0.89 0.81 2.45 0.89 0.80
Table 4: 2021 Total Portfolio Cost-Effectiveness Results (Including NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits
Net
Benefits
Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0759 $7,959,490 $8,486,495 $527,005 1.07
Total Resource Cost Test (TRC) No
Adder $0.0759 $7,959,490 $7,718,513 -$240,977 0.97
Utility Cost Test (UCT) $0.0423 $4,429,321 $7,679,822 $3,250,501 1.73
Participant Cost Test (PCT) $5,956,288 $13,313,540 $7,357,252 2.24
Rate Impact Test (RIM) $16,111,352 $7,679,822 -$8,431,529 0.48
Lifecycle Revenue Impacts ($/kWh) $0.0004288
Discounted Participant Payback
(years) 4.17

Table 5: 2021 Total Portfolio Cost-Effectiveness Results (Without NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits
Net
Benefits
Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0759 $7,959,490 $8,447,804 $488,315 1.06
Total Resource Cost Test (TRC) No
Adder $0.0759 $7,959,490 $7,679,822 -$279,668 0.96
Utility Cost Test (UCT) $0.0423 $4,429,321 $7,679,822 $3,250,501 1.73
Participant Cost Test (PCT) $5,956,288 $13,269,085 $7,312,797 2.23
Rate Impact Test (RIM) $16,111,352 $7,679,822 -$8,431,529 0.48
Lifecycle Revenue Impacts ($/kWh) $0.0004288
Discounted Participant Payback
(years) 4.17
Table 6: 2021 C&I Energy Efficiency Sector Cost-Effectiveness Results
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits
Net
Benefits
Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0614 $5,754,179 $6,885,927 $1,131,747 1.20
Total Resource Cost Test (TRC) No
Adder $0.0614 $5,754,179 $6,259,933 $505,754 1.09
Utility Cost Test (UCT) $0.0362 $3,392,844 $6,259,933 $2,867,089 1.85
Participant Cost Test (PCT) $4,523,093 $11,990,073 $7,466,979 2.65
Rate Impact Test (RIM) $13,885,451 $6,259,933 -$7,625,517 0.45
Lifecycle Revenue Impacts ($/kWh) $0.0005692
Discounted Participant Payback
(years) 4.81

Applied Energy Group, Inc. | appliedenergygroup.com 4
Table 7: 2021 Residential Energy Efficiency Sector Cost-Effectiveness Results (Including NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.1728 $1,748,774 $1,600,569 -$148,206 0.92
Total Resource Cost Test (TRC) No
Adder $0.1728 $1,748,774 $1,458,580 -$290,195 0.83
Utility Cost Test (UCT) $0.0573 $579,941 $1,419,889 $839,948 2.45
Participant Cost Test (PCT) $1,433,195 $1,323,467 -$109,727 0.92
Rate Impact Test (RIM) $1,769,365 $1,419,889 -$349,476 0.80
Lifecycle Revenue Impacts ($/kWh) $0.0000471
Discounted Participant Payback
(years) 2.94
Table 8: 2021 Residential Energy Efficiency Sector Cost-Effectiveness Results (Without NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.1728 $1,748,774 $1,561,878 -$186,897 0.89
Total Resource Cost Test (TRC) No
Adder $0.1728 $1,748,774 $1,419,889 -$328,885 0.81
Utility Cost Test (UCT) $0.0573 $579,941 $1,419,889 $839,948 2.45
Participant Cost Test (PCT) $1,433,195 $1,279,012 -$154,182 0.89
Rate Impact Test (RIM) $1,769,365 $1,419,889 -$349,476 0.80
Lifecycle Revenue Impacts ($/kWh) $0.0000471
Discounted Participant Payback
(years) 2.94
Table 9: 2021 Home Energy Savings NEBs by Measure
Measure Name Total NEBs
($/yr) Quantity Measure Life Discount Rate Total NPV
Benefits
Appliances $156 29 14.0 6.92% $1,341
Energy Kits $5,333 328 10.1 6.92% $37,350

Applied Energy Group, Inc. | appliedenergygroup.com 1
MEMORANDUM
To: Alesha Pino, PacifiCorp
From: Andrew Cottrell, Andy Hudson, Dylan Royalty, AEG
Date: April 25, 2022
Re: PacifiCorp Idaho Home Energy Savings Cost-Effectiveness Results – PY2021

AEG estimated the cost-effectiveness of PacifiCorp’s overall energy efficiency portfolio in the state of Idaho based
on Program Year (PY) 2021 costs and savings estimates provided by PacifiCorp. This memo provides cost-
effectiveness results for the Home Energy Savings program.

This memo provides analysis inputs and results in the following tables:
Table 1: Cost-Effectiveness Analysis Inputs
Table 2: HES Annual Program Costs, Nominal - PY2021
Table 3: 2021 Home Energy Savings kWh Savings by Measure Category
Table 4: 2021 Benefit/Cost Ratios by Measure Category
Table 5: 2021 HES Program Cost-Effectiveness Results (Without NEBs)
Table 6: 2021 Appliances Cost-Effectiveness Results (Without NEBs) - (Load Shape - Residential_ERWH_7P)
Table 7: 2021 Building Shell Cost-Effectiveness Results (Without NEBs) - (Load Shape - ID_Single Family_Cooling)
Table 8: 2021 Electronics Cost-Effectiveness Results (Without NEBs) - (Load Shape - ID_Single Family_Plug)
Table 9: 2021 Home Energy Kits Cost-Effectiveness Results (Without NEBs) - (Load Shape -
Residential_LIGHTING_7P)
Table 10: 2021 HVAC Cost-Effectiveness Results (Without NEBs) - (Load Shape - ID_Single_Family_Cooling)
Table 11: 2021 Lighting Cost-Effectiveness Results (Without NEBs) - (Load Shape - Residential_LIGHTING_7P)
Table 12: 2021 Water Heating Cost-Effectiveness Results (Without NEBs) - (Load Shape - Residential_HPWH_7P)
Table 13: 2021 Whole Home Cost-Effectiveness Results (Without NEBs) - (Load Shape - ID_Single_Family_Cooling)

Applied Energy Group, Inc. | appliedenergygroup.com 2
Table 14: 2021 Whole Building Cost-Effectiveness Results (Without NEBs) - (Load Shape -
ID_Single_Family_Cooling)
Table 15: 2021 Transportation Cost-Effectiveness Results (Without NEBs) - (Load Shape - ID_Single_Family_Heating)
Table 16: 2021 Home Energy Savings NEBs by Measure
Table 17: 2021 HES Program Cost-Effectiveness Results (Including NEBs)
Table 18: 2021 Appliances Cost-Effectiveness Results (Including NEBs) - (Load Shape - Residential_ERWH_7P)
Table 19: 2021 Home Energy Kits Cost-Effectiveness Results (Including NEBs) - (Load Shape -
Residential_LIGHTING_7P)
The following assumptions were utilized in the analysis:
 Avoided Costs: Hourly values provided by PacifiCorp based on the 2021 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 loss, retail rate, and inflation rate values were provided by
PacifiCorp and are presented in Error! Reference source not found. below.

Tables 1 and 2 below summarize cost-effectiveness assumptions for the Home Energy Savings program. All costs
and impacts are presented at the program and measure category level.
Table 1: Cost-Effectiveness Analysis Inputs
Parameter PY2021
Discount Rate 6.92%
Residential Line Loss 8.59%
Residential Energy Rate ($/kWh) $0.1013
Inflation Rate 2.28%

Tables 3 through 15 present the savings and cost-effectiveness results at the program and measure category
levels. Tables 16 and 19 present the NEBs impacts for the HES program and the cost-effectiveness results
including NEBs at the program and measure category levels.

Applied Energy Group, Inc. | appliedenergygroup.com 3
Table 2: HES Annual Program Costs, Nominal - PY20211
Measure
Category
Program
Delivery
Utility
Admin
Program
Development Incentives Total Utility
Budget
Gross
Customer
Costs
Appliances $3,193 $38 $18 $1,150 $4,399 $24,882
Building Shell $20,151 $239 $115 $8,003 $28,508 $114,071
Electronics $83 $1 $0 $20 $105 $53
Energy Kits $2,779 $876 $420 $2,168 $6,244 $0
HVAC $236,272 $2,801 $1,344 $35,424 $275,841 $111,379
Lighting $42,562 $7,912 $3,796 $24,914 $79,183 $64,114
Water Heating $19,764 $234 $112 $5,800 $25,911 $12,878
Whole Home $25,345 $300 $144 $5,000 $30,789 $781,687
Whole Building $25,559 $303 $145 $6,800 $32,808 $149,047
Transportation $5,658 $67 $32 $310 $6,067 $310
Total $381,366 $12,772 $6,127 $89,588 $489,854 $1,258,422

Table 3: 2021 Home Energy Savings kWh Savings by Measure Category
Measure
Category
Gross kWh
Savings at Site
Realization
Rate
Adjusted Gross
kWh Savings at
Site
NTG
Ratio
Net kWh
Savings at Site
Measure
Life
Appliances 2,609 80% 2,087 88% 1,837 14
Building Shell 16,466 61% 10,044 88% 8,839 45
Electronics 68 52% 35 97% 34 5
Energy Kits 60,397 55% 33,218 87% 28,900 10
HVAC 193,067 101% 194,370 90% 174,156 7
Lighting 545,333 92% 503,328 72% 362,841 12
Water Heating 16,150 61% 9,852 99% 9,753 13
Whole Home 20,710 100% 20,710 88% 18,225 45
Whole Building 20,885 100% 20,885 93% 19,408 33
Transportation 4,623 100% 4,623 100% 4,623 7
Total Program 880,308 91% 799,153 79% 628,616 13

1 To align with annual budget expectations, cost-effectiveness inputs are presented in nominal dollars.

Applied Energy Group, Inc. | appliedenergygroup.com 4
Table 4: 2021 Benefit/Cost Ratios by Measure Category
Cost-Effectiveness Test PTRC TRC UCT PCT RIM
Appliances 0.04 0.04 0.24 0.12 0.16
Appliances (with NEBs) 0.09 0.09 0.24 0.18 0.16
Building Shell 0.14 0.12 0.58 0.22 0.34
Building Shell (with NEBs) 0.14 0.12 0.58 0.22 0.34
Electronics 0.07 0.06 0.08 0.66 0.07
Electronics (with NEBs) 0.07 0.06 0.08 0.66 0.07
Energy Kits 3.91 3.56 2.32 0.00 0.40
Energy Kits (with NEBs) 13.08 12.72 2.32 0.00 0.40
HVAC 0.54 0.49 0.62 1.26 0.43
HVAC (with NEBs) 0.54 0.49 0.62 1.26 0.43
Lighting 1.89 1.72 2.57 6.07 0.34
Lighting (with NEBs) 1.89 1.72 2.57 6.07 0.34
Water Heating 0.16 0.15 0.19 1.22 0.13
Water Heating (with NEBs) 0.16 0.15 0.19 1.22 0.13
Whole Home 0.05 0.04 1.11 0.05 0.47
Whole Home (with NEBs) 0.05 0.04 1.11 0.05 0.47
Whole Building 0.22 0.20 1.06 0.28 0.49
Whole Building (with NEBs) 0.22 0.20 1.06 0.28 0.49
Total 0.32 0.29 0.99 0.61 0.38
Total with NEBs 0.34 0.31 0.99 0.64 0.38

Table 5: 2021 HES Program Cost-Effectiveness Results (Without NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.2885 $1,658,687 $531,304 -$1,127,384 0.32
Total Resource Cost Test (TRC) No
Adder $0.2885 $1,658,687 $483,004 -$1,175,684 0.29
Utility Cost Test (UCT) $0.0852 $489,854 $483,004 -$6,850 0.99
Participant Cost Test (PCT) $1,433,195 $871,092 -$562,102 0.61
Rate Impact Test (RIM) $1,271,358 $483,004 -$788,354 0.38
Lifecycle Revenue Impacts ($/kWh) $0.0000338
Discounted Participant Payback
(years) 19.00

Applied Energy Group, Inc. | appliedenergygroup.com 5
Table 6: 2021 Appliances Cost-Effectiveness Results (Without NEBs) - (Load Shape - Residential_ERWH_7P)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits
Net
Benefits
Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $1.4410 $28,131 $1,179 -$26,952 0.04
Total Resource Cost Test (TRC) No
Adder $1.4410 $28,131 $1,071 -$27,059 0.04
Utility Cost Test (UCT) $0.2253 $4,399 $1,071 -$3,328 0.24
Participant Cost Test (PCT) $28,275 $3,518 -$24,757 0.12
Rate Impact Test (RIM) $6,767 $1,071 -$5,695 0.16
Lifecycle Revenue Impacts ($/kWh) $0.0000003
Discounted Participant Payback
(years) 112.65

Table 7: 2021 Building Shell Cost-Effectiveness Results (Without NEBs) - (Load Shape - ID_Single Family_Cooling)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits
Net
Benefits
Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.9513 $134,575 $18,213 -$116,362 0.14
Total Resource Cost Test (TRC) No
Adder $0.9513 $134,575 $16,558 -$118,018 0.12
Utility Cost Test (UCT) $0.2015 $28,508 $16,558 -$11,950 0.58
Participant Cost Test (PCT) $129,626 $28,403 -$101,223 0.22
Rate Impact Test (RIM) $48,908 $16,558 -$32,350 0.34
Lifecycle Revenue Impacts ($/kWh) $0.0000013
Discounted Participant Payback
(years) 205.67
Table 8: 2021 Electronics Cost-Effectiveness Results (Without NEBs) - (Load Shape - ID_Single Family_Plug)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.8424 $138 $10 -$129 0.07
Total Resource Cost Test (TRC) No
Adder $0.8424 $138 $9 -$130 0.06
Utility Cost Test (UCT) $0.6394 $105 $9 -$96 0.08
Participant Cost Test (PCT) $55 $36 -$19 0.66
Rate Impact Test (RIM) $121 $9 -$113 0.07
Lifecycle Revenue Impacts ($/kWh) $0.0000000
Discounted Participant Payback
(years) 7.54

Applied Energy Group, Inc. | appliedenergygroup.com 6
Table 9: 2021 Home Energy Kits Cost-Effectiveness Results (Without NEBs) - (Load Shape - Residential_LIGHTING_7P)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0161 $4,076 $15,955 $11,879 3.91
Total Resource Cost Test (TRC) No
Adder $0.0161 $4,076 $14,505 $10,429 3.56
Utility Cost Test (UCT) $0.0247 $6,244 $14,505 $8,261 2.32
Participant Cost Test (PCT) $0 $32,112 $32,112 n/a
Rate Impact Test (RIM) $36,188 $14,505 -$21,683 0.40
Lifecycle Revenue Impacts ($/kWh) $0.0000019
Discounted Participant Payback
(years) 0.00
Table 10: 2021 HVAC Cost-Effectiveness Results (Without NEBs) - (Load Shape - ID_Single_Family_Cooling)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.3219 $351,796 $189,472 -$162,325 0.54
Total Resource Cost Test (TRC) No
Adder $0.3219 $351,796 $172,247 -$179,549 0.49
Utility Cost Test (UCT) $0.2524 $275,841 $172,247 -$103,594 0.62
Participant Cost Test (PCT) $124,306 $156,550 $32,244 1.26
Rate Impact Test (RIM) $396,967 $172,247 -$224,720 0.43
Lifecycle Revenue Impacts ($/kWh) $0.0000295
Discounted Participant Payback
(years) 5.38
Table 11: 2021 Lighting Cost-Effectiveness Results (Without NEBs) - (Load Shape - Residential_LIGHTING_7P)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0335 $118,384 $224,157 $105,773 1.89
Total Resource Cost Test (TRC) No
Adder $0.0335 $118,384 $203,779 $85,395 1.72
Utility Cost Test (UCT) $0.0224 $79,183 $203,779 $124,595 2.57
Participant Cost Test (PCT) $88,938 $539,860 $450,922 6.07
Rate Impact Test (RIM) $594,130 $203,779 -$390,351 0.34
Lifecycle Revenue Impacts ($/kWh) $0.0000278
Discounted Participant Payback
(years) 2.01

Applied Energy Group, Inc. | appliedenergygroup.com 7
Table 12: 2021 Water Heating Cost-Effectiveness Results (Without NEBs) - (Load Shape - Residential_HPWH_7P)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.3470 $32,989 $5,339 -$27,650 0.16
Total Resource Cost Test (TRC) No
Adder $0.3470 $32,989 $4,854 -$28,135 0.15
Utility Cost Test (UCT) $0.2725 $25,911 $4,854 -$21,057 0.19
Participant Cost Test (PCT) $13,008 $15,879 $2,871 1.22
Rate Impact Test (RIM) $35,990 $4,854 -$31,136 0.13
Lifecycle Revenue Impacts ($/kWh) $0.0000017
Discounted Participant Payback
(years) 10.65
Table 13: 2021 Whole Home Cost-Effectiveness Results (Without NEBs) - (Load Shape - ID_Single_Family_Cooling)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $2.7775 $807,476 $37,458 -$770,018 0.05
Total Resource Cost Test (TRC) No
Adder $2.7775 $807,476 $34,053 -$773,423 0.04
Utility Cost Test (UCT) $0.1059 $30,789 $34,053 $3,264 1.11
Participant Cost Test (PCT) $888,281 $46,777 -$841,503 0.05
Rate Impact Test (RIM) $72,566 $34,053 -$38,514 0.47
Lifecycle Revenue Impacts ($/kWh) $0.0000019
Discounted Participant Payback
(years) 854.53
Table 14: 2021 Whole Building Cost-Effectiveness Results (Without NEBs) - (Load Shape - ID_Single_Family_Cooling)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.5992 $175,055 $38,195 -$136,859 0.22
Total Resource Cost Test (TRC) No
Adder $0.5992 $175,055 $34,723 -$140,332 0.20
Utility Cost Test (UCT) $0.1123 $32,808 $34,723 $1,915 1.06
Participant Cost Test (PCT) $160,395 $44,766 -$115,630 0.28
Rate Impact Test (RIM) $70,773 $34,723 -$36,050 0.49
Lifecycle Revenue Impacts ($/kWh) $0.0000020
Discounted Participant Payback
(years) 118.99

Applied Energy Group, Inc. | appliedenergygroup.com 8
Table 15: 2021 Transportation Cost-Effectiveness Results (Without NEBs) - (Load Shape - ID_Single_Family_Heating)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.2092 $6,067 $1,327 -$4,740 0.22
Total Resource Cost Test (TRC) No
Adder $0.2092 $6,067 $1,206 -$4,861 0.20
Utility Cost Test (UCT) $0.2092 $6,067 $1,206 -$4,861 0.20
Participant Cost Test (PCT) $310 $3,191 $2,881 10.29
Rate Impact Test (RIM) $8,948 $1,206 -$7,742 0.13
Lifecycle Revenue Impacts ($/kWh) $0.0000007
Discounted Participant Payback
(years) 0.65
Table 16: 2021 Home Energy Savings NEBs by Measure
Measure Name Total NEBs
($/yr) Quantity Measure Life Discount Rate Total NPV
Benefits
Appliances $156 29 14.0 6.92% $1,341
Energy Kits $5,333 328 10.1 6.92% $37,350

Table 17: 2021 HES Program Cost-Effectiveness Results (Including NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.2885 $1,658,687 $569,995 -$1,088,693 0.34
Total Resource Cost Test (TRC) No
Adder $0.2885 $1,658,687 $521,694 -$1,136,993 0.31
Utility Cost Test (UCT) $0.0852 $489,854 $483,004 -$6,850 0.99
Participant Cost Test (PCT) $1,433,195 $915,547 -$517,647 0.64
Rate Impact Test (RIM) $1,271,358 $483,004 -$788,354 0.38
Lifecycle Revenue Impacts ($/kWh) $0.0000338
Discounted Participant Payback
(years) 17.96

Applied Energy Group, Inc. | appliedenergygroup.com 9
Table 18: 2021 Appliances Cost-Effectiveness Results (Including NEBs) - (Load Shape - Residential_ERWH_7P)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $1.4410 $28,131 $2,519 -$25,611 0.09
Total Resource Cost Test (TRC) No
Adder $1.4410 $28,131 $2,412 -$25,719 0.09
Utility Cost Test (UCT) $0.2253 $4,399 $1,071 -$3,328 0.24
Participant Cost Test (PCT) $28,275 $5,042 -$23,233 0.18
Rate Impact Test (RIM) $6,767 $1,071 -$5,695 0.16
Lifecycle Revenue Impacts ($/kWh) $0.0000003
Discounted Participant Payback
(years) 78.60

Table 19: 2021 Home Energy Kits Cost-Effectiveness Results (Including NEBs) - (Load Shape - Residential_LIGHTING_7P)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0161 $4,076 $53,305 $49,229 13.08
Total Resource Cost Test (TRC) No
Adder $0.0161 $4,076 $51,855 $47,779 12.72
Utility Cost Test (UCT) $0.0247 $6,244 $14,505 $8,261 2.32
Participant Cost Test (PCT) $0 $75,043 $75,043 n/a
Rate Impact Test (RIM) $36,188 $14,505 -$21,683 0.40
Lifecycle Revenue Impacts ($/kWh) $0.0000019
Discounted Participant Payback
(years) 0.00

Applied Energy Group, Inc. | appliedenergygroup.com 1
MEMORANDUM
To: Alesha Pino, PacifiCorp
From: Andrew Cottrell, Andy Hudson, Dylan Royalty, AEG
Date: April 25, 2022
Re: PacifiCorp Idaho Home Energy Reporting Cost-Effectiveness Results – PY2021

AEG estimated the cost-effectiveness of PacifiCorp’s overall energy efficiency portfolio in the state of Idaho based
on Program Year (PY) 2021 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.

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 - PY2021
Table 3: 2021 Home Energy Reporting kWh Savings by Measure Category
Table 4: 2021 Home Energy Reporting Program Cost-Effectiveness Results
The following assumptions were utilized in the analysis:
 Avoided Costs: Hourly values provided by PacifiCorp based on the 2021 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 loss, retail rate, and inflation rate values were provided by
PacifiCorp and are presented in Error! Reference source not found. 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.

Applied Energy Group, Inc. | appliedenergygroup.com 2
Table 1: Cost-Effectiveness Analysis Inputs
Parameter PY2021
Discount Rate 6.92%
Residential Line Loss 8.59%
Residential Energy Rate ($/kWh) $0.1013
Inflation Rate 2.28%
Table 2: Home Energy Reporting Annual Program Costs, Nominal - PY20211
Measure Category Program
Delivery
Utility
Admin
Program
Development Incentives Total Utility
Budget
Gross
Customer Costs
Home Energy Reports $47,880 $41,804 $403 $0 $90,087 $0
Total $47,880 $41,804 $403 $0 $90,087 $0

Tables 3 and 4 present the savings and cost-effectiveness results at the program and measure category levels.
Table 3: 2021 Home Energy Reporting kWh Savings by Measure Category
Measure
Category
Gross kWh
Savings at Site
Realization
Rate
Adjusted Gross kWh
Savings at Site
NTG
Ratio
Net kWh
Savings at
Site
Measure
Life
Home Energy
Reports 4,238,790 95% 4,026,851 100% 4,026,851 1
Total Program 4,238,790 95% 4,026,851 100% 4,026,851 1

Table 4: 2021 Home Energy Reporting Program Cost-Effectiveness Results
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0206 $90,087 $1,030,574 $940,487 11.44
Total Resource Cost Test (TRC) No
Adder $0.0206 $90,087 $936,885 $846,798 10.40
Utility Cost Test (UCT) $0.0206 $90,087 $936,885 $846,798 10.40
Participant Cost Test (PCT) $0 $407,920 $407,920 n/a
Rate Impact Test (RIM) $498,007 $936,885 $438,878 1.88
Lifecycle Revenue Impacts ($/kWh) $0.0002207

1 To align with annual budget expectations, cost-effectiveness inputs are presented in nominal dollars.

Applied Energy Group, Inc. | appliedenergygroup.com 1
MEMORANDUM
To: Alesha Pino, PacifiCorp
From: Andrew Cottrell, Andy Hudson, Dylan Royalty, AEG
Date: April 25, 2022
Re: PacifiCorp Idaho Low Income Weatherization Cost-Effectiveness Results – PY2021

AEG estimated the cost-effectiveness of PacifiCorp’s overall energy efficiency portfolio in the state of Idaho based
on Program Year (PY) 2021 costs and savings estimates provided by PacifiCorp. This memo provides cost-
effectiveness results for the Low Income Weatherization program. The program passes the PacifiCorp (PTRC)
without NEBs, and the PTRC and Total Resource Cost Test (TRC) with 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 - PY2021
Table 3: 2021 Low Income Weatherization kWh Savings by Measure Category
Table 4: 2021 Low Income Weatherization Benefit/Cost Ratios by Measure Category
Table 5: 2021 Low Income Weatherization Program Cost-Effectiveness Results (without NEBs)
Table 6: 2021 Low Income Weatherization NEBs
Table 7: 2021 Low Income Weatherization Program Cost-Effectiveness Results (Including NEBs)

The following assumptions were utilized in the analysis:
 Avoided Costs: Hourly values provided by PacifiCorp based on the 2021 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 loss, retail rate, and inflation rate values were provided by
PacifiCorp and are presented in Error! Reference source not found. below.

Applied Energy Group, Inc. | appliedenergygroup.com 2
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.
Table 1: Cost-Effectiveness Analysis Inputs
Parameter PY2021
Discount Rate 6.92%
Residential Line Loss 8.59%
Residential Energy Rate ($/kWh) $0.1013
Inflation Rate 2.28%

Table 2: Low Income Weatherization Annual Program Costs, Nominal - PY20211
Measure
Category
Program
Delivery
Utility
Admin
Program
Development Incentives Total Utility
Budget
Gross
Customer Costs
Low Income
Weatherization $5,940 $4,580 $25,933 $119,019 $155,472 $119,019
Total Program $5,940 $4,580 $25,933 $119,019 $155,472 $119,019

Tables 3 through 5 present the savings and cost-effectiveness results at the program and measure category levels.
Tables 6 and 7 present the NEBs impacts for the Low Income Weatherization program and the cost-effectiveness
results including NEBs at the program level.

Table 3: 2021 Low Income Weatherization kWh Savings by Measure Category
Measure
Category
Gross kWh
Savings at Site
Realization
Rate
Adjusted Gross kWh
Savings at Site
NTG
Ratio
Net kWh
Savings at
Site
Measure
Life
Low Income
Weatherization 35,325 60% 21,195 100% 21,195 24
Total Program 35,325 60% 21,195 100% 21,195 24

Table 4: 2021 Low Income Weatherization Benefit/Cost Ratios by Measure Category
Measure Category PTRC TRC UCT PCT RIM
Low Income Weatherization with NEBs 4.31 4.28 0.28 0.23 n/a
Low Income Weatherization 0.25 0.23 0.28 0.23 n/a

1 To align with annual budget expectations, cost-effectiveness inputs are presented in nominal dollars.

Applied Energy Group, Inc. | appliedenergygroup.com 3
Table 5: 2021 Low Income Weatherization Program Cost-Effectiveness Results (without NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.5382 $155,472 $38,779 ($116,693) 0.25
Total Resource Cost Test (TRC) No
Adder $0.5382 $155,472 $35,254 ($120,218) 0.23
Utility Cost Test (UCT) $0.5382 $155,472 $43,379 ($112,093) 0.28
Participant Cost Test (PCT) $119,019 $152,176 $33,156 1.28
Rate Impact Test (RIM) $188,628 $43,379 ($145,249) 0.23
Lifecycle Revenue Impacts ($/kWh) $0.0000061

Table 6: 2021 Low Income Weatherization NEBs
Non-Energy Benefit Program
Impact
Perspective
Adjusted
Total NEBs $630,561 PTRC, TRC

Table 7: 2021 Low Income Weatherization Program Cost-Effectiveness Results (Including NEBs)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.5382 $155,472 $669,341 $513,869 4.31
Total Resource Cost Test (TRC) No
Adder $0.5382 $155,472 $665,815 $510,343 4.28
Utility Cost Test (UCT) $0.5382 $155,472 $43,379 ($112,093) 0.28
Participant Cost Test (PCT) $119,019 $671,307 $552,288 5.64
Rate Impact Test (RIM) $188,628 $43,379 ($145,249) 0.23
Lifecycle Revenue Impacts ($/kWh) $0.0000061

Applied Energy Group, Inc. | appliedenergygroup.com 1
MEMORANDUM
To: Alesha Pino, PacifiCorp
From: Andrew Cottrell, Andy Hudson, Dylan Royalty, AEG
Date: April 25, 2022
Re: PacifiCorp Idaho Wattsmart Business Program Cost-Effectiveness Results – PY2021

AEG estimated the cost-effectiveness of PacifiCorp’s overall energy efficiency portfolio in the state of Idaho based
on Program Year (PY) 2021 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: Total Resource Cost Test (TRC), the 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 - PY2021
Table 3: 2021 Wattsmart Business kWh Savings by Measure Category
Table 4: 2021 Benefit/Cost Ratios by Measure Category
Table 5: 2021 Wattsmart Business Program Cost-Effectiveness Results
Table 6: 2021 Building Shell Cost-Effectiveness Results - (Load Shape - ID_Large_Office_Space_Cool)
Table 7: 2021 Compressed Air Cost-Effectiveness Results - (Load Shape -
ID_Miscellaneous_Mfg_General)
Table 8: 2021 Energy Management Cost-Effectiveness Results - (Load Shape -
ID_Miscellaneous_HVAC_Aux)
Table 9: 2021 HVAC Cost-Effectiveness Results - (Load Shape - ID_Miscellaneous_HVAC_Aux)
Table 10: 2021 Irrigation Cost-Effectiveness Results - (Load Shape - ID_Irrigation_General)
Table 11: 2021 Lighting Cost-Effectiveness Results - (Load Shape - ID_Miscellaneous_Lighting)

Applied Energy Group, Inc. | appliedenergygroup.com 2
Table 12: 2021 Motors Cost-Effectiveness Results - (Load Shape - ID_Irrigation_General)
Table 13: 2021 Refrigeration Cost-Effectiveness Results - (Load Shape - ID_Miscellaneous_Refrigeration)
Table 14: 2021 Energy Project Manager Co-Fund Cost-Effectiveness Results - (Load Shape -
ID_Miscellaneous_Mfg_General)

The following assumptions were utilized in the analysis:
 Avoided Costs: Hourly values provided by PacifiCorp based on the 2021 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 loss, retail rate, and inflation rate values were provided by
PacifiCorp and are presented in Error! Reference source not found. 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
Parameter PY2021
Discount Rate 6.92%
Commercial Line Loss 3.83%
Industrial Line Loss 9.05%
Irrigation Line Loss 9.06%
Commercial Energy Rate ($/kWh) $0.0872
Industrial Energy Rate ($/kWh) $0.0636
Irrigation Energy Rate ($/kWh) $0.0907
Inflation Rate 2.28%

Applied Energy Group, Inc. | appliedenergygroup.com 3
Table 2: Wattsmart Business Annual Program Costs, Nominal - PY20211
Measure
Category
Program
Delivery
Utility
Admin
Program
Development Incentives Total Utility
Budget
Gross
Customer
Costs
Building Shell $2,861 $56 $51 $5,416 $8,384 $22,434
Compressed Air $1,227 $55 $41 $2,340 $3,664 $5,229
Energy
Management $41,320 $911 $656 $5,007 $47,894 $5,704
HVAC $84,936 $1,805 $1,399 $62,633 $150,774 $201,666
Irrigation $582,365 $24,686 $10,366 $462,042 $1,079,459 $904,305
Lighting $587,996 $12,170 $10,925 $511,087 $1,122,179 $1,540,235
Motors $439,946 $9,713 $6,996 $368,873 $825,527 $962,192
Refrigeration $40,586 $878 $631 $36,173 $78,268 $217,036
Energy Project
Manager Co-Fund $32,801 $0 $0 $43,895 $76,696 $0
Total Program $1,814,040 $50,273 $31,066 $1,497,466 $3,392,844 $3,858,801

Tables 3 through 14 present the savings and cost-effectiveness results at the program and measure category
levels.

Table 3: 2021 Wattsmart Business kWh Savings by Measure Category
Measure
Category
Gross kWh
Savings at
Site
Realization
Rate
Adjusted Gross
kWh Savings at
Site
NTG
Ratio
Net kWh
Savings at Site
Measure
Life
Building Shell 19,560 100% 19,560 67% 13,105 15
Compressed Air 15,603 100% 15,603 84% 13,107 13
Energy
Management 250,345 99% 248,843 89% 221,470 5
HVAC 534,434 81% 432,357 89% 384,798 15
Irrigation 3,958,599 100% 3,944,129 65% 2,574,908 12
Lighting 4,172,213 100% 4,172,213 100% 4,172,213 14
Motors 2,671,538 84% 2,246,763 89% 1,999,619 15
Refrigeration 241,152 83% 200,156 89% 178,139 15
Energy Project
Manager Co-Fund 0 0% 0 0% 0 0
Total Program 11,863,444 95% 11,279,624 85% 9,557,359 13

1 To align with annual budget expectations, cost-effectiveness inputs are presented in nominal dollars.

Applied Energy Group, Inc. | appliedenergygroup.com 4
Table 4: 2021 Benefit/Cost Ratios by Measure Category
Cost-Effectiveness Test PTRC TRC UCT PCT RIM
Building Shell 0.48 0.44 1.33 0.76 0.39
Compressed Air 1.27 1.16 2.07 2.58 0.44
Energy Management 1.54 1.40 1.42 16.30 0.46
HVAC 0.93 0.85 1.63 2.14 0.43
Irrigation 1.38 1.26 1.77 2.84 0.42
Lighting 1.17 1.06 2.04 2.98 0.44
Motors 1.26 1.14 1.96 2.37 0.54
Refrigeration 0.46 0.42 1.39 0.95 0.40
Energy Project Manager Co-Fund 0.00 0.00 0.00 0.00 0.00
Total Program 1.20 1.09 1.85 2.65 0.45

Table 5: 2021 Wattsmart Business Program Cost-Effectiveness Results
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0614 $5,754,179 $6,885,927 $1,131,747 1.20
Total Resource Cost Test (TRC) No
Adder $0.0614 $5,754,179 $6,259,933 $505,754 1.09
Utility Cost Test (UCT) $0.0362 $3,392,844 $6,259,933 $2,867,089 1.85
Participant Cost Test (PCT) $4,523,093 $11,990,073 $7,466,979 2.65
Rate Impact Test (RIM) $13,885,451 $6,259,933 -$7,625,517 0.45
Lifecycle Revenue Impacts ($/kWh) $0.0005692
Discounted Participant Payback
(years) 4.81

Table 6: 2021 Building Shell Cost-Effectiveness Results - (Load Shape - ID_Large_Office_Space_Cool)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits
Net
Benefits
Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.1839 $25,402 $12,225 -$13,178 0.48
Total Resource Cost Test (TRC) No
Adder $0.1839 $25,402 $11,113 -$14,289 0.44
Utility Cost Test (UCT) $0.0607 $8,384 $11,113 $2,729 1.33
Participant Cost Test (PCT) $33,484 $25,393 -$8,090 0.76
Rate Impact Test (RIM) $28,361 $11,113 -$17,248 0.39
Lifecycle Revenue Impacts ($/kWh) $0.0000012
Discounted Participant Payback
(years) 19.87

Applied Energy Group, Inc. | appliedenergygroup.com 5
Table 7: 2021 Compressed Air Cost-Effectiveness Results - (Load Shape - ID_Miscellaneous_Mfg_General)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits
Net
Benefits
Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0536 $6,552 $8,334 $1,782 1.27
Total Resource Cost Test (TRC) No
Adder $0.0536 $6,552 $7,576 $1,024 1.16
Utility Cost Test (UCT) $0.0300 $3,664 $7,576 $3,913 2.07
Participant Cost Test (PCT) $6,225 $16,082 $9,857 2.58
Rate Impact Test (RIM) $17,405 $7,576 -$9,829 0.44
Lifecycle Revenue Impacts ($/kWh) $0.0000008
Discounted Participant Payback
(years) 5.03

Table 8: 2021 Energy Management Cost-Effectiveness Results - (Load Shape - ID_Miscellaneous_HVAC_Aux)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0481 $48,591 $74,986 $26,395 1.54
Total Resource Cost Test (TRC) No
Adder $0.0481 $48,591 $68,169 $19,578 1.40
Utility Cost Test (UCT) $0.0474 $47,894 $68,169 $20,275 1.42
Participant Cost Test (PCT) $6,409 $104,486 $98,077 16.30
Rate Impact Test (RIM) $147,372 $68,169 -$79,203 0.46
Lifecycle Revenue Impacts ($/kWh) $0.0000145
Discounted Participant Payback
(years) 0.28

Table 9: 2021 HVAC Cost-Effectiveness Results - (Load Shape - ID_Miscellaneous_HVAC_Aux)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0741 $289,807 $269,905 -$19,902 0.93
Total Resource Cost Test (TRC) No
Adder $0.0741 $289,807 $245,368 -$44,439 0.85
Utility Cost Test (UCT) $0.0386 $150,774 $245,368 $94,594 1.63
Participant Cost Test (PCT) $226,591 $484,837 $258,246 2.14
Rate Impact Test (RIM) $572,978 $245,368 -$327,610 0.43
Lifecycle Revenue Impacts ($/kWh) $0.0000244
Discounted Participant Payback
(years) 7.01

Applied Energy Group, Inc. | appliedenergygroup.com 6
Table 10: 2021 Irrigation Cost-Effectiveness Results - (Load Shape - ID_Irrigation_General)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0634 $1,521,722 $2,103,785 $582,063 1.38
Total Resource Cost Test (TRC) No
Adder $0.0634 $1,521,722 $1,912,532 $390,809 1.26
Utility Cost Test (UCT) $0.0450 $1,079,459 $1,912,532 $833,073 1.77
Participant Cost Test (PCT) $1,385,174 $3,935,556 $2,550,382 2.84
Rate Impact Test (RIM) $4,552,973 $1,912,532 -$2,640,441 0.42
Lifecycle Revenue Impacts ($/kWh) $0.0002130
Discounted Participant Payback
(years) 4.24

Table 11: 2021 Lighting Cost-Effectiveness Results - (Load Shape - ID_Miscellaneous_Lighting)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0507 $2,151,326 $2,515,929 $364,602 1.17
Total Resource Cost Test (TRC) No
Adder $0.0507 $2,151,326 $2,287,208 $135,882 1.06
Utility Cost Test (UCT) $0.0265 $1,122,179 $2,287,208 $1,165,029 2.04
Participant Cost Test (PCT) $1,540,235 $4,585,322 $3,045,087 2.98
Rate Impact Test (RIM) $5,196,413 $2,287,208 -$2,909,205 0.44
Lifecycle Revenue Impacts ($/kWh) $0.0002216
Discounted Participant Payback
(years) 4.73

Table 12: 2021 Motors Cost-Effectiveness Results - (Load Shape - ID_Irrigation_General)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0698 $1,418,847 $1,781,215 $362,368 1.26
Total Resource Cost Test (TRC) No
Adder $0.0698 $1,418,847 $1,619,287 $200,440 1.14
Utility Cost Test (UCT) $0.0406 $825,527 $1,619,287 $793,759 1.96
Participant Cost Test (PCT) $1,081,115 $2,562,874 $1,481,759 2.37
Rate Impact Test (RIM) $3,019,529 $1,619,287 -$1,400,242 0.54
Lifecycle Revenue Impacts ($/kWh) $0.0001288
Discounted Participant Payback
(years) 6.33

Applied Energy Group, Inc. | appliedenergygroup.com 7
Table 13: 2021 Refrigeration Cost-Effectiveness Results - (Load Shape - ID_Miscellaneous_Refrigeration)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.1431 $259,131 $119,548 -$139,583 0.46
Total Resource Cost Test (TRC) No
Adder $0.1431 $259,131 $108,680 -$150,451 0.42
Utility Cost Test (UCT) $0.0432 $78,268 $108,680 $30,413 1.39
Participant Cost Test (PCT) $243,861 $231,629 -$12,232 0.95
Rate Impact Test (RIM) $273,724 $108,680 -$165,043 0.40
Lifecycle Revenue Impacts ($/kWh) $0.0000117
Discounted Participant Payback
(years) 15.79

Table 14: 2021 Energy Project Manager Co-Fund Cost-Effectiveness Results - (Load Shape -
ID_Miscellaneous_Mfg_General)
Cost-Effectiveness Test Levelized
$/kWh NPV Costs NPV
Benefits Net Benefits Benefit/Cost
Ratio
Total Resource Cost Test (PTRC) +
Conservation Adder $0.0000 $32,801 $0 -$32,801 0.00
Total Resource Cost Test (TRC) No
Adder $0.0000 $32,801 $0 -$32,801 0.00
Utility Cost Test (UCT) $0.0000 $76,696 $0 -$76,696 0.00
Participant Cost Test (PCT) $0 $43,895 $43,895 n/a
Rate Impact Test (RIM) $76,696 $0 -$76,696 0.00
Lifecycle Revenue Impacts ($/kWh) $0.0000000
Discounted Participant Payback
(years) 0.00