20260625Final Approved Tariffs.pdf

IDAHO PUBLIC UTILITIES COMMISSION
Third Revision Sheet 90 Approved Effective
Canceling June 25,2026 July 1,2026
I.P.U.C. No.28 Second Revision Sheet 90 CommisQGn Secretary
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 90
ELECTRIC DEMAND SIDE MANAGEMENT PROGRAMS
IDAHO
1. PURPOSE
To provide conditions applicable to the programs and services (hereafter
collectively referred to as "Programs")funded under the Company's tariff Schedule
91, "Demand Side Management Rider Adjustment" (DSM Rider). These Programs
include both energy efficiency and demand response opportunities intended to
promote the efficient use of electrical energy by providing Customers with access
to incentives, information, assistance or products that promote
conservation/energy efficiency decisions or investments.
2. AVAILABILITY
Programs are available to all residential, commercial, and industrial retail
electric distribution Customers specified within Schedule 91, and are limited to
end uses where electricity, as served by the Company, is the energy source.
Customers receiving electric distribution service provided under special contract
and/or Customers not otherwise specified under Schedule 91 are not eligible for
Programs unless specifically stated in such contract or other service agreement
with the Company. Facilities-based Programs are available to owners of facilities
and may also be provided to tenants who have obtained appropriate owner
consent.
3. PARTICIPATION AND FUNDING
Customer participation under this schedule shall be based on eligibility
requirements contained herein, with resource acquisition deemed cost-effective as
defined by a Utility Cost Test (UCT) at the portfolio level, unless otherwise
described. The Company may provide partial funding for the installation of electric
efficiency measures and may provide other Programs to Customers for the
purpose of identification and implementation of cost-effective electric efficiency or
demand response measures as described in this schedule. The broad availability
of this tariff does not preclude the Company from targeting measures, markets and
specific Customer segments as part of an overall effort to increase the cost-
effectiveness and access to the benefits of electric efficiency/conservation.
Programs may take the form of monetary incentives or non-monetary
incentives, as further defined within this tariff, with funding for such Programs
provided by surcharges collected through the DSM Rider. DSM Rider funding is
not responsible for system resource costs such as demand response incentives,
though administration of these Programs may be funded through the DSM Rider.
Issued June 1, 2026 Effective July 1, 2026
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

IDAHO PUBLIC UTILITIES COMMISSION
Third Revision Sheet 90A Approved Effective
Canceling June 25,2026 July 1,2026
I.P.U.C. No.28 Second Revision Sheet 90A CommiQgAn Secretary
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 90 — continued
Participation in Programs assumes Customer agreement and permissions in
allowing the Company to utilize energy-use or electricity demand data for incentive
calculation and evaluation purposes. Additional Customer participation related to
Programs, such as feedback via survey or interviews, may be requested. A
Customer is solely responsible for, and assumes all liabilities associated with, any
independent third-party contracting necessary to enable the Customer's
participation in Programs, unless otherwise agreed to in writing by the Company.
4. MEASURES
Electric efficiency measures with verifiable energy savings and demand
response measures intended to achieve capacity reductions are eligible for
Programs; measure eligibility may not apply to all customer segments. Final
determination of applicable measure eligibility will be made by the Company.
Eligible energy efficiency technologies may include, but are not limited to, energy-
efficient appliances, assistive technologies, controls, motors, heating, ventilation
and air-conditioning (HVAC) systems, lighting, maintenance, monitoring, new
technologies, and shell measures. Eligible demand response Programs may
employ a variety of methodologies and technologies, including both Company-
owned and those owned, leased or maintained by the Customer or by a third-party
service provider.
Customers who participate in demand response Programs offered under this
schedule consent to make temporary, systematic reductions in end-use electric
loads. Programs provided may be incentive-based, where the Company provides
the Customer incentives for performance.
Market transformation ventures will be considered eligible for funding to the
extent that they improve the adoption of electric efficiency measures that are not
fully accepted in the marketplace. These market transformation efforts may include
efforts funded through regional alliances or other similar opportunities.
Issued June 1, 2026 Effective July 1, 2026
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

IDAHO PUBLIC UTILITIES COMMISSION
Substitute Seventh Revision Sheet 90B Approved Effective
Canceling June 25,2026 90Bluiy 1,2026
I.P.U.C. No.28 Sixth Revision Sheet 90B Commission Secretary
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 90 — continued
5. INCENTIVES AND NONMONETARY ASSISTANCE
a. FUNDING
The Company shall offer incentives for projects based upon the
incremental capital cost associated with the energy efficiency of the project,
with energy savings calculated using the current energy rates. Incentives
will be paid up to a maximum of the incremental measure cost, in
accordance with the following provisions:
i. The Company will make adjustments, if necessary, to the percent of
incremental cost paid to attempt to obtain the greatest energy
savings at the lowest cost.
ii. Fuel-conversion incentives are available only for conversion to
natural gas with an end-use efficiency of 44% or greater.
iii. Low-income measures provided through energy efficiency programs
delivered by Community Action Agencies (CAAs)—contracted by the
Company to serve limited income or vulnerable customer segments,
including CAA administration costs and health and human safety
measures — that have a TRC of 1.0 or higher, are incentivized at
100% of the project cost. For measures that have a TRC of less than
1, the project is incentivized at an amount equal to the present value
of avoided cost.
The Company will actively pursue electric efficiency or demand response
opportunities that may not fit within the prescribed Programs described in this tariff.
In these circumstances, the Customer and the Company will enter into a site-
specific (efficiency Programs) or bi-lateral (demand response) service agreement.
Issued June 12, 2026 Effective July 1, 2026
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

IDAHO PUBLIC UTILITIES COMMISSION
Fifth Revision Sheet 90C Approved Effective
Canceling June 25,2026 90CJuly 1,2026
I.P.U.C. No.28 Fourth Revision Sheet 90C Commission Secretary
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 90 - continued
b. NON-MONETARY ASSISTANCE
Non-monetary assistance is service that does not involve the granting of direct
monetary incentives to the Customer. This type of assistance is available across
all applicable Customer segments. This assistance may be provided in various
ways that include, but are not limited to, the following:
i. Educational, training or informational activities that enhance
resource efficiency. This may include technology or customer-
segment specific seminars, literature, trade-show booths, advertising
or other approaches to increasing the awareness and adoption of
resource efficient measures and behaviors.
ii. Financial activities intended to reduce or eliminate the financial
barriers to the adoption of resource efficiency measures. This may
include programs intended to reduce the payment rate for resource
efficiency measures, direct provision of leased or loaned funds or
other approaches to financial issues by better than existing market
terms and conditions.
iii. Product samples may be provided directly to the customer when
resource efficient products may be available to the utility at
significantly reduced cost as a result of cooperative buying or similar
opportunities.
iv. Technical Assistance may consist of engineering, financial or other
analysis provided to the customer by or under the direction of, Avista
Corporation staff. This may take the form of design reviews, product
demonstrations, third-party bid evaluations, facility audits,
measurement and evaluation analysis, project management or other
forms of technical assistance that addresses the cost-effectiveness,
technical applicability or end-use characteristics of customer
The Company may also provide funding for Programs supporting or enhancing
local, regional or national electric efficiency market transformation efforts.
Issued June 1, 2026 Effective July 1, 2026
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

IDAHO PUBLIC UTILITIES COMMISSION
Substitute Sixth Revision Sheet 90D Approved Effective
Canceling June 25,2026 90Djuiy 1,2026
I.P.U.C. No.28 Fifth Revision Sheet 90D Commission Secretary
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 90 - continued
5. BUDGET AND REPORTING
Surcharges levied within Schedule 91 will be used to fund the electric
efficiency programs defined within this tariff as well as the administrative costs
expended in support of electric energy efficiency and demand response programs.
The Company will manage these programs to obtain resources that are cost-
effective from a UCT perspective and achievable through utility intervention.
Schedule 91 will be periodically reviewed and revised as necessary to provide
adequate funding for electric efficiency efforts.
6. GENERAL RULES AND PROVISIONS
Service under this schedule is subject to the General Rules and Provisions
contained in this tariff and is limited to facilities receiving electric service from the
Company.
All installations and equipment must comply with all local code and permit
requirements applicable and be properly inspected, if required, by appropriate
agencies.
The Company may establish specifications regarding any electric efficiency
measures and modifications to be effected under this schedule and may conduct
inspections to insure that such specifications are met.
Issued June 12, 2026 Effective July 1, 2026
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

IDAHO PUBLIC UTILITIES COMMISSION
Sixteenth Revision Sheet 91 Approved Effective
Canceling June 25, 2026 July 1, 2026
I.P.U.C. No.28 Fifteenth Revision Sheet 91 Commission Secretary
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 91
DEMAND SIDE MANAGEMENT RIDER ADJUSTMENT - IDAHO
APPLICABLE:
To Customers in the State of Idaho where the Company has electric service
available. This Demand Side Management (DSM) Rider or Rate Adjustment shall be
applicable to all retail customers for charges for electric energy sold and to the flat
rate charges for Company-owned or Customer-owned Street Lighting and Area
Lighting Service. This Rate Adjustment is designed to recover costs incurred by the
Company associated with providing energy efficiency and demand response
services and programs to customers, in accordance with the Company's tariff
Schedule 90, "Electric Demand Side Management Programs".
MONTHLY RATE:
The energy charges of the individual rate schedules are to be increased by
the following amounts:
Schedule 1 0. 722 ¢ per kWh Schedule 25 0.373 ¢ per kWh
Schedule 11 & 12 0.382 ¢ per kWh Schedule 25P 0.303 ¢ per kWh
Schedule 21 & 22 2.022 ¢ per kWh Schedule 31 & 32 0.705 ¢ per kWh
Schedules 41 - 49 2.708 ¢ per kWh
SPECIAL TERMS AND CONDITIONS:
Service under this schedule is subject to the Rules and Regulations
contained in this tariff.
The above Rate is subject to increases as set forth in Tax Adjustment
Schedule 58.
Issued June 1, 2026 Effective July 1, 2026
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs
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