20230918Final Approved Tariffs.pdf

August 31, 2023
Commission Secretary Idaho Public Utilities Commission 472 W. Washington St. Boise, ID 83702
RE: Tariff I.P.U.C. No. 28 (Electric) and Tariff I.P.U.C. No. 27 (Natural Gas) Case Nos. AVU-E-23-01 and AVU-G-23-01 Compliance Tariff Filing Commission Order No. 35909 - Case Nos. AVU-E-23-01 and AVU-G-23-01
Enclosed for electronic filing with the Commission are the compliance tariffs per the Commission’s Order No. 35909 in Case Nos. AVU-E-23-01 and AVU-G-23-01. Electric
Seventeenth Revision Sheet 001 canceling Sixteenth Revision Sheet 001 Seventeenth Revision Sheet 011 canceling Sixteenth Revision Sheet 011 Seventeenth Revision Sheet 021 canceling Sixteenth Revision Sheet 021
Seventeenth Revision Sheet 025 canceling Sixteenth Revision Sheet 025 Seventeenth Revision Sheet 025P canceling Sixteenth Revision Sheet 025P Seventeenth Revision Sheet 031 canceling Sixteenth Revision Sheet 031
Sixteenth Revision Sheet 041 canceling Fifteenth Revision Sheet 041 Sixteenth Revision Sheet 042 canceling Sub. Fifteenth Revision Sheet 042 Thirteenth Revision Sheet 042A canceling Twelfth Revision Sheet 042A Sixteenth Revision Sheet 044 canceling Fifteenth Revision Sheet 044 Sixteenth Revision Sheet 045 canceling Fifteenth Revision Sheet 045 Sixteenth Revision Sheet 046 canceling Fifteenth Revision Sheet 046 Fifth Revision Sheet 046A canceling Fourth Revision Sheet 046A Sixteenth Revision Sheet 047 canceling Fifteenth Revision Sheet 047 Fifteenth Revision Sheet 049 canceling Fourteenth Revision Sheet 049 Eleventh Revision Sheet 049A canceling Tenth Revision Sheet 049A
Natural Gas
Sixteenth Revision Sheet 101 canceling Rep. Fifteenth Revision Sheet 101 Seventeenth Revision Sheet 111 canceling Rep. Sixteenth Revision Sheet 111
Avista Corp. 1411 East Mission P.O. Box 3727 Spokane. Washington 99220-0500 Telephone [phone] Toll Free 800-727-9170
Via Electronic Mail

RECEIVED
2023 August 31 PM 2:46
IDAHO PUBLIC
UTILITIES COMMISSION

Eighteenth Revision Sheet 112 canceling Rep. Seventeenth Revision Sheet 112
These tariff sheets have an effective date of September 1, 2023, in compliance with the Order. The compliance tariffs for Year 2 of the rate plan that will go into effect on September 1, 2024 will be filed prior to July 15, 2024.

Also enclosed is a copy of the workpapers supporting the rate changes within the tariffs. If you have any questions regarding this filing, please call Joe Miller at [phone]. Sincerely,

/s/ Patrick Ehrbar Patrick Ehrbar Director of Rates

Enclosures
CERTIFICATE OF SERVICE

I HEREBY CERTIFY that I have this 31st day of August 2023, served the Compliance filing of
Avista Corporation in Case Nos. AVU-E-23-01 and AVU-G-23-01, upon the following parties by
electronically providing a copy thereof, to:

Commission Staff:
Chris Burdin
Deputy Attorneys General
Idaho Public Utilities Commission
11331 W. Chinden Blvd
Building 8, Suite 201-A
Boise, ID 83714
[e-mail]

Jan Noriyuki, Secretary
Idaho Public Utilities Commission
11331 W. Chinden Blvd
Building 8, Suite 201-A
Boise, ID 83714
[e-mail]

Clearwater Paper:
Peter J. Richardson
Richardson Adams
515 N. 27th Street
PO Box 7218
Boise, ID 83702
[e-mail]

Dr. Don Reading
280 S. Silverwood Way
Eagle, ID 83616
[e-mail]
[e-mail]
[e-mail]
[e-mail]

Idaho Forest Group:
Andrew Moratzka
Stoel Rives LLP
33 South Sixth Street, Suite 4200
Minneapolis, MN 55405
[e-mail]

Larry Crowley
The Energy Strategies Institute, Inc.
3738 S. Harris Ranch Ave.
Boise, ID 83716
[e-mail]

Bradley R. Mullins
Principal Consultant
MW Analytics
[e-mail]

Walmart:
Justina A. Caviglia
Parons Behle & Latimer
50 Est Liberty Street, Suite 750
Reno, NV 89502
[e-mail]

Steve W. Chriss
Director, Energy Services
Walmart Inc.
2608 Southeast “J” Street
Bentonville, AR 72716
[e-mail]

Idaho Conservation League:
Marie Callaway Kellner
Brad Heusinkveld
Idaho Conservation League
710 N. 6th St.
Boise, ID 83702
[e-mail]
[e-mail]
NW Energy Coalition:
F. Diego Rivas
NW Energy Coalition
1101 8th Ave.
Helena, MT 59601
[e-mail]

/s/ Paul Kimball
Paul Kimball
Manager of Compliance & Discovery

BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION

AVISTA UTILITIES
AVU-G-21-01

__________________________________________

Tariff Sheets – Natural Gas Clean

Sixteenth Revision Sheet 101 Canceling

By Patrick Ehrbar ,Director of Regulatory Affairs

SCHEDULE 101
GENERAL SERVICE - FIRM - IDAHO AVAILABLE: To Customers in the State of Idaho where Company has natural gas service
available. APPLICABLE:
To firm gas service for any purpose when all such service used on the premises is supplied at one point of delivery through a single meter.
MONTHLY RATE: Per Meter Per Month Basic charge $15.00 Charge Per Therm: Base Rate 33.371¢ Minimum Charge: $15.00
The above Monthly Rates are subject to increases or decreases as set forth in Tax Adjustment Schedule 158, Purchase Gas Cost Adjustment Schedule 150, Gas Rate Adjustment Schedule 155, Fixed Cost Adjustment Schedule 175, Tax
Customer Credit Schedule 176 and Energy Efficiency Rider Adjustment Schedule 191. SPECIAL TERMS AND CONDITIONS: Service under this schedule is subject to the Rules and Regulations contained in this tariff.

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Seventeenth Revision Sheet 111 Canceling

Issued by Avista Utilities By Patrick Ehrbar , Director of Regulatory Affairs

SCHEDULE 111 LARGE GENERAL SERVICE - FIRM - IDAHO
AVAILABLE: To Customers in the State of Idaho where Company has natural gas service available.
APPLICABLE: To firm gas service for any purpose, subject to execution of a service agreement for a term of one year or longer. All such service used on the premises shall be supplied at one point of delivery through a single meter.
MONTHLY RATE: Charge Per Therm: Per Meter
Base Rate Per Month First 200 $0.40870 Next 800 $0.32368
Next 9,000 $0.23575 All Over $0.17764
Minimum Charge: $81.74 The minimum charge calculation is based solely on the base rate per therm noted above and is not inclusive of the adder schedules.
The above Monthly Rates are subject to increases or decreases as set forth in Tax Adjustment Schedule 158, Purchase Gas Cost Adjustment Schedule 150, Gas Rate Adjustment Schedule 155, Fixed Cost Adjustment Schedule 175, Tax Customer Credit Schedule 176 and Energy Efficiency Rider Adjustment Schedule
191.
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Eighteenth Revision Sheet 112 Canceling

Issued by Avista Utilities By Patrick Ehrbar , Director of Regulatory Affairs

SCHEDULE 112 LARGE GENERAL SERVICE - FIRM - IDAHO AVAILABLE:
To Customers in the State of Idaho where Company has natural gas service available. Customers taking service under this Schedule beginning on or after March 1, 2002 must have been previously served under Schedule 146 – Transportation Service for Customer–Owned Gas.
APPLICABLE: To firm gas service for any purpose, subject to execution of a service agreement for a term of one year or longer. All such service used on the premises shall be supplied at one point of delivery through a single meter.
MONTHLY RATE:
Charge Per Therm: Per Meter Base Rate Per Month
First 200 $0.40870 Next 800 $0.32368 Next 9,000 $0.23575 All Over $0.17764
Minimum Charge: $81.74 The minimum charge calculation is based solely on the base rate per therm noted above and is not inclusive of the adder schedules.
The above Monthly Rates are subject to increases or decreases as set forth in Tax Adjustment Schedule 158, Purchase Gas Cost Adjustment Schedule 150, Gas Rate Adjustment Schedule 155, Fixed Cost Adjustment Schedule 175, Tax Customer Credit Schedule 176 and Energy Efficiency Rider Adjustment Schedule
191.
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION

AVISTA UTILITIES
AVU-E-21-01

__________________________________________

Tariff Sheets – Electric Clean

Seventeenth Revision Sheet 1 Canceling

By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 1
RESIDENTIAL SERVICE - IDAHO
(Single phase & available voltage)
AVAILABLE: To Customers in the State of Idaho where Company has electric service available.
APPLICABLE:
To service for domestic purposes in each individual residence, apartment, mobile home, or other living unit when all such service used on the premises is supplied through a single meter.
Where a portion of a dwelling is used regularly for the conduct of business or where a portion of the electricity supplied is used for other than domestic purposes, the appropriate general service schedule is applicable. However, if the service for all domestic purposes is metered separately, this schedule will be applied to such service. When two or more living units are served through a single meter, the appropriate general service schedule is applicable. MONTHLY RATE: $15.00 Basic Charge, plus First 600 kWh 9.456¢ per kWh
All over 600 kWh 10.628¢ per kWh
Monthly Minimum Charge: $15.00
OPTIONAL SEASONAL MONTHLY CHARGE: A $15.00 monthly charge shall apply to Customers who close their account on a
seasonal or intermittent basis, provided no energy usage occurs during an entire monthly billing cycle while the account is closed. Customers choosing this option are required to notify the Company in writing or by phone in advance and the account will be closed at
the start of the next billing cycle following notification. If energy is used during a monthly billing cycle, the above listed energy charges and basic charge of $15.00 shall apply.
SPECIAL TERMS AND CONDITIONS: Service under this schedule is subject to the Rules and Regulations contained in this tariff. The above Monthly Rates are subject to increases or decreases as set forth in Tax Adjustment Schedule 58, Residential and Farm Energy Rate Adjustment Schedule 59, Temporary Power Cost Adjustment Schedule 66, Fixed Cost Adjustment Mechanism Schedule 75, Tax Customer Credit Schedule 76 and Energy Efficiency Rider Adjustment Schedule 91.
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Seventeenth Revision Sheet 11 Canceling

By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 11
GENERAL SERVICE - IDAHO
(Available phase and voltage) AVAILABLE: To Customers in the State of Idaho where Company has electric service available.
APPLICABLE: To general service supplied for all power requirements when all such service
taken on the premises is supplied through one meter installation. MONTHLY RATE: The sum of the following charges: $18.00 Basic Charge, plus Energy Charge: First 3650 kWh 9.350¢ per kWh
All Over 3650 kWh 6.554¢ per kWh Demand Charge:
No charge for the first 20 kW of demand. $6.50 per kW for each additional kW of demand.
Minimum: $18.00 for single phase service and $25.10 for three phase service; unless a higher minimum is required under contract to cover special conditions. DEMAND: The average kW supplied during the 15-minute period of maximum use during the month as determined by a demand meter. SPECIAL TERMS AND CONDITIONS: Service under this schedule is subject to the Rules and Regulations
contained in this tariff. The above Monthly Rates are subject to increases or decreases as set forth
in Tax Adjustment Schedule 58, Temporary Power Cost Adjustment Schedule 66, Fixed Cost Adjustment Mechanism Schedule 75, Tax Customer Credit Schedule 76 and Energy Efficiency Rider Adjustment Schedule 91.

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Seventeenth Revision Sheet 21 Canceling

By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 21 LARGE GENERAL SERVICE - IDAHO
(Available phase and voltage) AVAILABLE: To Customers in the State of Idaho where Company has electric service available.
APPLICABLE: To general service supplied for all power requirements when all such service taken on the premises is supplied through one meter installation. Customer shall provide and maintain all transformers and other necessary equipment on his side of the point of delivery and may be required to enter into a written contract for five (5) years or longer.
MONTHLY RATE: The sum of the following demand and energy charges: Energy Charge: First 250,000 kWh 7.135¢ per kWh
All Over 250,000 kWh 6.012¢ per kWh Demand Charge: $500.00 for the first 50 kW of demand or less.
$6.50 per kW for each additional kW of demand. Primary Voltage Discount: If Customer takes service at 11 kv (wye grounded) or higher, he will be
allowed a primary voltage discount of 30¢ per kW of demand per month. Power Factor Adjustment Charge: If Customer has a reactive kilovolt-ampere (kVAr) meter, he will be subject to a Power Factor Adjustment charge, as set forth in the Rules & Regulations. Minimum: $500.00, unless a higher minimum is required under contract to cover special conditions. ANNUAL MINIMUM: The current 12-month billing including any charges for power factor correction shall be not less than $10.00 per kW of the highest demand established during the current 12-month period provided that such highest demand shall be adjusted by the elimination of
any demand occasioned by an operation totally abandoned during such 12-month period. DEMAND: The average kW supplied during the 15-minute period of maximum use during the
month as determined by a demand meter. SPECIAL TERMS AND CONDITIONS: Customers served at 11 kv or higher shall provide and maintain all transformers and other necessary equipment on their side of the point of delivery. Service under this schedule is subject to the Rules and Regulations contained in this
tariff.
The above Monthly Rates are subject to increases or decreases as set forth in Tax Adjustment Schedule 58, Temporary Power Cost Adjustment Schedule 66, Fixed Cost Adjustment Schedule 75, Tax Customer Credit Schedule 76 and Energy Efficiency Rider Adjustment Schedule 91.
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Seventeenth Revision Sheet 25 Canceling

By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 25 EXTRA LARGE GENERAL SERVICE - IDAHO (Three phase, available voltage) AVAILABLE: To Customers in the State of Idaho where Company has electric service available.
APPLICABLE: To general service supplied for all power requirements when all such service taken
on the premises is supplied through one meter installation for a demand of not less than 2,500 kVA but not greater than 25,000 kVA. The average of the Customer's demand for the most recent twelve-month period must fall within these demand limits for service under
this schedule. If the Customer has less than twelve months of billing history, the Customer must have a minimum of six consecutive billing months of demand of at least 2,500 kVA in order to receive service under this schedule. New Customers must meet the above
criteria or otherwise provide the Company with reasonable assurance that their peak demand will average at least 2,500 kVA. Customer shall provide and maintain all transformers and other necessary equipment on his side of the point of delivery and enter into a written contract for five (5) years or longer. MONTHLY RATE: The sum of the following demand and energy charges: Energy Charge: First 500,000 kWh 5.738¢ per kWh
All Over 500,000 kWh 4.807¢ per kWh Demand Charge: $16,000.00 for the first 3,000 kVA of demand or less.
$5.75 per kVA for each additional kVA of demand. Primary Voltage Discount: If Customer takes service at 11 kV (wye grounded) or higher, he will be allowed a primary voltage discount of 30¢ per kVA of demand per month. Minimum: The demand charge unless a higher minimum is required under contract to cover special conditions. ANNUAL MINIMUM: $776,630
Any annual minimum deficiency will be determined during the April billing cycle for the previous 12-month period. For a customer who has taken service on this schedule for less than 12 months, the annual minimum will be prorated based on the actual months of service. The annual minimum will also be prorated if base rates change during the 12-month period. The annual minimum is based on 916,667 kWh’s per month (11,000,000 kWh’s annually), plus twelve months multiplied by the monthly minimum demand charge for the first 3,000 kVa of demand. The annual minimum reflected above is based on base
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Seventeenth Revision Sheet 25P Canceling

By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 25P
EXTRA LARGE GENERAL SERVICE TO CLEARWATER PAPER’S FACILITY - IDAHO (Three phase, available voltage)
AVAILABLE: To Clearwater Paper Corporation’s Lewiston, Idaho Facility. APPLICABLE: To general service supplied for all power requirements with a demand of not less than 2,500 kVA but not greater than 110,000 kVA. The average of the Customer's demand for the most recent twelve-month period must fall within these demand limits for service under this schedule. Customer shall provide and maintain all transformers and other necessary equipment on its side of the point of delivery and enter into a written contract for five (5) years or longer.
MONTHLY RATE: The sum of the following demand and energy charges: Energy Charge: Block 1 Retail Meter 4.290¢ per kWh
Block 2 Generation Meter 2.456¢ per kWh Demand Charge as measured at the Retail Meter:
$16,000.00 for the first 3,000 kVA of demand or less. 1st Demand Block: $5.75 per kVA for each additional kVA of demand up to 55,000 kVA.
2nd Demand Block: $3.00 per kVA for each additional kVA of demand above 55,000 kVA. Primary Voltage Discount as measured at the Retail Meter: If Customer takes service at 11 kV (wye grounded) or higher, it will be allowed a primary voltage discount of 30¢ per kVA of demand per month. Minimum: The demand charge unless a higher minimum is required under contract to cover special conditions.
ANNUAL MINIMUM: $663,900
Any annual minimum deficiency will be determined during the April billing cycle for the previous 12-month period. The annual minimum is based on 916,667 kWh’s per month priced
at the Block 1 per kWh rate, plus twelve months multiplied by the monthly minimum demand charge for the first 3,000 kVa of demand. The annual minimum reflected above is based on base revenues only. Any other revenues paid in billed rates (such as the DSM Tariff Rider
Schedule 91) do not factor into the annual minimum calculation.
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Seventeenth Revision Sheet 31 Canceling

By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 31 PUMPING SERVICE - IDAHO
(Available phase and voltage) AVAILABLE:
To Customers in the State of Idaho where Company has electric service available. APPLICABLE: To service through one meter for pumping water or water effluents, including incidental power used for other equipment and lighting essential to the pumping operation.
For such incidental service, Customer will furnish any transformers and other necessary equipment. Customer may be required to enter into a written contract for five (5) years or longer and will have service available on a continuous basis unless there is a change in ownership or control of property served. MONTHLY RATE: The sum of the following charges: $18.00 Basic Charge, plus Energy Charge: 11.361¢ per kWh for the first 85 KWh per kW of demand, and for the next 80
KWh per kW of demand but not more than 3,000 KWh. 9.594¢ per KWh for all additional KWh. Annual Minimum: $12.00 per kW of the highest demand established in the current year ending
with the November billing cycle. If no demand occurred in the current year, the annual minimum will be based on the highest demand in the latest previous year having a demand.
Demand:
The average kW supplied during the 15-minute period of maximum use during the month determined, at the option of Company, by a demand meter or nameplate input rating of pump motor.
SPECIAL TERMS AND CONDITIONS: If Customer requests the account to be closed by reason of change in ownership or control of property, the unbilled service and any applicable annual minimum will be prorated to the date of closing.
Service under this schedule is subject to the Rules and Regulations contained in this tariff. The above Monthly Rates are subject to increases or decreases as set forth in Tax Adjustment Schedule 58, Temporary Power Cost Adjustment Schedule 66, Fixed Cost Adjustment Schedule 75, Tax Customer Credit Schedule 76 and Energy Efficiency Rider Adjustment Schedule 91.
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Sixteenth Revision Sheet 41 Canceling

By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 41
COMPANY OWNED STREET LIGHT SERVICE-IDAHO
(Single phase and available voltage)

AVAILABLE:
To agencies of local, state, or federal governments in all Idaho territory served by Company. Closed to new installations as of November 24, 1981, except where Company and customer agree, mercury vapor lamps may be installed to provide compatibility with existing light sources.
APPLICABLE:
To annual operation of dusk-to-dawn lighting for public streets and
thoroughfares upon receipt of an authorized application. MONTHLY RATE: Pole Facility Fixture Metal Standard & Size Wood Pedestal Direct Developer (Lumens) No Pole Pole Base Burial Contributed Code Rate Code Rate Code Rate Code Rate Code Rate Single Mercury Vapor 7000 411 $ 17.11 416 $ 17.11 *Not available to new customers accounts, or locations. #Decorative Curb.

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Sixteenth Revision Sheet 42 Canceling

Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 42 COMPANY OWNED STREET LIGHT SERVICE - IDAHO
(Single phase and available voltage) AVAILABLE: To agencies of local, state, or federal governments in all Idaho territory served by Company.
APPLICABLE: To annual operation of dusk-to-dawn lighting for public streets and thoroughfares upon receipt of an authorized application. Closed to new installations of sodium vapor lamps as of January 1, 2018, except where
Company and customer agree, sodium vapor lamps may be installed to provide compatibility with existing light sources. MONTHLY RATE:
Single High-Pressure Sodium Vapor

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Thirteenth Revision Sheet 42A Canceling

Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 42A - Continued MONTHLY RATE:

Custom Street Light Calculation Customers who choose to add street light fixtures that are outside of the offerings listed above will be quoted a fixed monthly rate based on the following rate calculation. The three components detailed below will be added together to develop the new Schedule 42 rate. Step 1 – The capital component will be determined by multiplying an engineering estimate of the installed cost of the new light component, or fixture, by the Capital Recovery Factor of 10.952%. Step 2 – The maintenance component will either be the embedded maintenance cost of a similar existing fixture or an engineering estimate of the maintenance cost of a new fixture. The maintenance component for an existing light can be derived by subtracting the Schedule 46 (energy) light code monthly charge from the same Schedule 44 light code monthly charge (maintenance and energy). Step 3 – The energy component will be the energy cost of the same wattage light under Schedule 46.
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Sixteenth Revision Sheet 44 Canceling

By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 44 CUSTOMER OWNED STREET LIGHT ENERGY AND MAINTENANCE SERVICE -
IDAHO HIGH-PRESSURE SODIUM VAPOR (Single phase and available voltage) AVAILABLE: To agencies of local, state, or federal governments in all Idaho territory served by
Company. Closed to new installations effective January 1, 2016.
APPLICABLE: To annual operation of dusk-to-dawn lighting for public streets and thoroughfares upon receipt of an authorized application.
MONTHLY RATE:
Single High-Pressure

SPECIAL TERMS AND CONDITIONS: Customer is responsible for financing, installing and owning standards, luminaries and necessary circuitry and related facilities to connect with Company designated points of delivery. All such facilities will conform to Company's design, standards and specifications. Customer is also responsible for painting (if desired) and replacing damaged pole facilities. Company will furnish the necessary energy, repairs and maintenance work including lamp and glassware cleaning and replacement. Repairs and maintenance work will be performed by Company during regularly scheduled working hours.
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Sixteenth Revision Sheet 45 Canceling

By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 45
CUSTOMER OWNED STREET LIGHT ENERGY SERVICE - IDAHO (Single phase and available voltage) AVAILABLE: To agencies of local, state, or federal governments in all Idaho territory
served by Company. Closed to new installations as of November 24, 1981, except where Company and customer agree, mercury vapor lamps may be installed to provide compatibility with existing light sources. APPLICABLE:
To annual operation of lighting for public streets and thoroughfares upon receipt of an authorized application. MONTHLY RATE: Per Luminaire
Dusk to Fixture Dawn
& Size Service (Lumens) Code Rate
Mercury Vapor
10000 515 $ 8.23 20000# 615 14.94
#Also includes Metal Halide. SPECIAL TERMS AND CONDITIONS: Customer is responsible for financing, installing, owning, maintaining and replacing all standards, luminaires, and necessary circuitry and related facilities to
connect with Company designated points of delivery. Customer will also provide a
light sensitive relay and/or time switch in order to control the hours that energy will be provided.
Company is responsible only for the furnishing of energy to the point of delivery and the billing and accounting related thereto. Service under this schedule is subject to the Rules and Regulations
contained in this tariff.
The above Monthly Rates are subject to increases as set forth in Tax Adjustment Schedule 58, Temporary Power Cost Adjustment Schedule 66, Tax Customer Credit Schedule 76 and Energy Efficiency Rider Adjustment Schedule 91.

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Sixteenth Revision Sheet 46 Canceling

Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 46 CUSTOMER OWNED STREET LIGHT ENERGY SERVICE - IDAHO
HIGH-PRESSURE SODIUM VAPOR
(Single phase and available voltage) AVAILABLE: To agencies of local, state, or federal governments in all Idaho territory
served by Company.
APPLICABLE:
To annual operation of lighting for public streets and thoroughfares upon receipt of an authorized application.
MONTHLY RATE:

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Issued August 31, 2023 Effective September 1, 2023
Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs

Fifth Revision Sheet 46A Canceling

SCHEDULE 46A - Continued MONTHLY RATE:
121 - 130W 125L 5.05
141 - 150W 145L 5.83
161 - 170W 165L 6.62
181 - 190W 185L 7.52
201 - 225W 212L 8.64

SPECIAL TERMS AND CONDITIONS: Customer is responsible for financing, installing, owning, maintaining and replacing all standards, luminaires, and necessary circuitry and related facilities to
connect with Company designated points of delivery. Customer will also provide a light sensitive relay and/or time switch in order to control the hours that energy will be provided. Company is responsible only for the furnishing of energy to the point of delivery and the billing and accounting related thereto.
Service under this schedule is subject to the Rules and Regulations contained in this tariff.
The above Monthly Rates are subject to increases as set forth in Tax Adjustment Schedule 58, Temporary Power Cost Adjustment Schedule 66, Tax
Customer Credit Schedule 76 and Energy Efficiency Rider Adjustment Schedule 91.
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Sixteenth Revision Sheet 47 Canceling

By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 47
AREA LIGHTING - MERCURY VAPOR - IDAHO (Single phase and available voltage) AVAILABLE: In all Idaho territory served by Company where existing secondary
distribution facilities are of adequate capacity, phase, and voltage. APPLICABLE: To annual operation of dusk-to-dawn area lighting with mercury vapor lamps upon receipt of a Customer contract for five (5) years or more. Mercury vapor
lamps will be available only to those customers receiving service on October 23, 1981. MONTHLY RATE:
Charge per Unit
Nominal Lumens) 7,000 10,000 20,000 Luminaire (on existing standard) $ 17.11 $ 20.73 $ 29.43

Luminaire and Standard: 30-foot wood pole 21.42 25.05 33.75
Galvanized steel standards:
25 foot 40.50

Monthly Rate per Pole Pole Facility 30-foot wood pole $ 7.05
55-foot wood pole 13.66
20-foot fiberglass-direct burial 7.05
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Fifteenth Revision Sheet 49 Canceling

Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 49
AREA LIGHTING - IDAHO (Single phase and available voltage) AVAILABLE: In all territory served by the Company where existing secondary distribution facilities are of adequate capacity, phase, and voltage. APPLICABLE: To annual operation of dusk-to-dawn area lighting with high-pressure sodium vapor lamps upon receipt of a Customer contract for five (5) years or more. MONTHLY RATE:

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Issued August 31, 2023 Effective September 1, 2023
Issued by Avista Utilities By Patrick Ehrbar, Director of Regulatory Affairs

Eleventh Revision Sheet 49A Canceling

SCHEDULE 49A – Continued Custom Area Light Calculation
Customers who choose to add area light fixtures that are outside of the offerings listed above will be quoted a fixed monthly rate based on the following rate calculation. The three components detailed below will be added together to develop the new Schedule 49
rate. Step 1 – The capital component will be determined by multiplying an engineering estimate of the installed cost of the new area light component, or fixture, by the Capital Recovery Factor of 10.952. Step 2 – The maintenance component will be an engineering estimate of the maintenance cost of a new fixture.
Step 3 – The energy component will be the energy cost of the same wattage light under Schedule 46. SPECIAL TERMS AND CONDITIONS:
The Company will install, own, and maintain the facilities for supplying dusk-to-dawn area lighting service using overhead circuits. At the request of Customer, Company will install underground cable for such service provided Customer, in advance of
construction, pays Company the excess cost of such installation. The Company will furnish the necessary energy, repairs, and maintenance work including lamp and glassware replacement. Repairs and maintenance work will be performed by Company during regularly scheduled working hours. Individual lamps will be replaced on burnout as soon as reasonably possible after notification by Customer and subject to Company's operating schedules and requirements.
The Company will assess the Customer the following removal charges if the Customer requests to discontinue service under this schedule within the initial five-year contract period:
$25 per luminaire $75 per pole Service under this schedule is subject to the Rules and Regulations contained in
this tariff. The above Monthly Rates are subject to increases as set forth in Tax Adjustment Schedule 58, Temporary Power Cost Adjustment Schedule 66, Energy Efficiency Rider Tax Customer Credit Schedule 76 and Adjustment Schedule 91.

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary