20260601TARIFF ADVICE NO. AVU-TAE-26-03.pdf

I ,1
06
Avista Corp. RECEIVED
1411 East Mission Ave.,P.O. Box 3727 JUNE 1, 2026
Spokane, WA 99220-0500 IDAHO PUBLIC
Telephone: [phone] UTILITIES COMMISSION
Toll Free: 800-227-9187
June 1, 2026
Commission Secretary
Idaho Public Utilities Commission
11331 W. Chinden Blvd
Building 8, Suite 201-A
Boise, ID 83714
Re: Avista Utilities Proposed Changes to Schedules 90 and 91
Dear Commission Secretary:
In accordance with the Rules of Procedure of the Idaho Public Utilities Commission
(Commission), Rule 134 (IDAPA 31.01.01.134), attached for electronic filing with the
Commission are the proposed tariff revisions of Avista Corporation, dba Avista Utilities (Avista
or the Company), requesting revisions to the following electric tariff sheets, I.P.U.C.No. 28:
Third Revision Sheet 90 Canceling Second Revision Sheet 90
Third Revision Sheet 90A Canceling Second Revision Sheet 90A
Seventh Revision Sheet 90B Canceling Sixth Revision Sheet 90B
Fifth Revision Sheet 90C Canceling Fourth Revision Sheet 90C
Sixth Revision Sheet 90D Canceling Fifth Revision Sheet 90D
Sixteenth Revision Sheet 91 Canceling Fifteenth Revision Sheet 91
The primary purpose of this filing is to incorporate the mention of demand response (DR)
programs and/or services within the Company's tariff Schedule 90, "Electric Demand Side
Management Programs",' to provide the Company with an avenue through which it can include
demand response as a part of its demand side management (DSM) offerings and therefore charge
a portion of administrative costs expended in support of DR through its associated Schedule 91,
'The current title of tariff Schedule 90 is"Electric Energy Efficiency Programs";the Company is requesting a revision
to"Electric Demand Side Management Programs"as described within this filing.

"Demand Side Management Rider Adjustment— Idaho" (DSM Rider).2 Additional revisions are
housekeeping in nature, intended to improve the overall format and flow of the Schedule 90 tariff,
and to align Schedule 91 by adding mention of DR and replacing the term "energy efficiency",
with the term "demand side management" or "DSM". Because the housekeeping revisions serve
as a fairly extensive reorganization of tariff Schedule 90 overall, a summary of the changes made
within each tariff sheet is provided below for ease of reference and review.
• Sheet 90—The title of Schedule 90 was modified from"Electric Energy Efficiency
Programs" to `Electric Demand Side Mana eme Programs" [Emphasis added],
to allow for mention of demand response within this programmatic tariff(versus it
being energy efficiency only).A"Purpose"section was added to inform the general
intent and objective of Schedule 90; this section includes mention of both energy
efficiency and demand response and incorporates some of the description
information about DSM's overall purpose that was formerly in the "Availability"
section. The "Availability" section, which was previously overly broad in its
mention of program availability, cost-effectiveness, incentive types, and tariff
purpose, is now narrowed to only describing the customers segments to which the
programs and services within this tariff schedule are available. Lastly, a
"Participation and Funding" heading was added, which consolidates information
formerly contained within the "Eligible Customer Segments" and "Availability"
sections regarding customer eligibility, cost-effectiveness, and specification
regarding the types (i.e., monetary vs. non-monetary) and sources of funding
available for participants.Demand response was also incorporated into this section,
clarifying that DR incentives are not eligible for funding under the corresponding
Schedule 91, but rather only the administrative costs expended in support of these
DR programs can be funded through the DSM Rider. The "Measures" section was
moved down to the next sheet (Sheet 90A) to allow appropriate space for the
additions and modifications made.
• Sheet 90A—Language regarding customer participation agreements and liabilities
was added. Specifics regarding demand response participation were incorporated
under the "Measures" section. Information regarding incentives for distributed
renewable energy measures was removed in an effort to better reflect current and
planned program portfolio mix, as this language is no longer relevant for Avista's
DSM efforts and will be replaced should it be needed in the future. The"Incentives
and Nonmonetary Assistance" (formerly"Funding and Nonmonetary Assistance")
section was moved to the next sheet(Sheet 90B)to allow appropriate space for the
additions and modifications made.
• Sheet 90B=The "Funding and Nonmonetary Assistance" section was modified to
"Incentives and Nonmonetary Assistance" to better align with the intent of the
z The current title of tariff Schedule 91 is"Energy Efficiency Rider Adjustment-Idaho";the Company is requesting
a revision to"Demand Side Management Rider Adjustment—Idaho"as described within this filing.

section (detailing what is funded versus how, which is discussed in the
"Participation and Funding" section) and to eliminate redundancy in using
"Funding" in multiple headings. Information within the "Funding" subsection was
reorganized and consolidated to provide a more comprehensive view of the actual
provisions of Avista's DSM programs, as the prior format presented duplicative
information in various sections (e.g., the "Measures" section already adequately
covers the explanation that electric efficiency measures with
demonstrable/verifiable energy savings are eligible for funding, so there is no need
to restate that information again under this subsection). Market transformation was
also removed from this section, as it is already covered within "Measures";
statements about market transformation within the "Funding" section were moved
to "Non-Monetary Assistance". Information formerly contained within Sheet 90C
(former Sec. 4.1.1-4.1.4) was consolidated into this sheet.
• Sheet 90C—Information on this sheet remains largely untouched.The only changes
made are to the numbering system used throughout all sheets and the movement of
market transformation from the "Funding" section to the "Non-Monetary
Assistance"section, as described above for Sheet 90B, since such funding does not
involve direct monetary incentives to the customer (but rather to a local, regional,
or national organization).
• Sheet 90D—The "Budgeting and Reporting" section was re-worded slightly, with
no change in meaning or intent. The remaining content on this sheet is unchanged.
• Sheet 91—The term"energy efficiency"was replaced with the term"demand side
management", or "DSM" and DR was added, with reference made back to the
Company's tariff Schedule 90 for further details.
The Company does not consider any of the changes described above to be material in nature
— they are instead intended to provide a cleaner, better organized version of the prior tariff
formatting—and no changes in rates or program design(outside of DR administration, as detailed)
are being requested as a part of this filing. As such, Avista respectfully requests the Commission
approve the proposed revisions to its tariff Schedules 90 and 91 effective July 1, 2026.
If you have any questions regarding this filing,please contact me at(509) 495-7839 or
j aime.stpeter(ae,avi stacorp.com.
Sincerely,
/4,/ p4eox St Peat
Jaime St Peter
Regulatory Affairs Manager

Third Revision Sheet 90
Canceling
I.P.U.C. No.28 Second Revision Sheet 90 90
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

Third Revision Sheet 90A
Canceling
I.P.U.C. No.28 Second Revision Sheet 90A 90A
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

Seventh Revision Sheet 90B
Canceling 90B
I.P.U.C. No.28 Sixth Revision Sheet 90B
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.
iv. Incentives for demand response programs shall be allowed with a
calculated value based on event schedule or other applicable
factors. Funding sources for incentives may include external sources
such as grants or the DSM Rider, to the extent described within this
schedule.
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 1, 2026 Effective July 1, 2026
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

Fifth Revision Sheet 90C
Canceling 90C
I.P.U.C. No.28 Fourth Revision Sheet 90C
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

Sixth Revision Sheet 90D
Canceling 90D
I.P.U.C. No.28 Fifth Revision Sheet 90D
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 adminsitrative 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 UTC 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 1, 2026 Effective July 1, 2026
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

Sixteenth Revision Sheet 91
Canceling
I.P.U.C. No.28 Fifteenth Revision Sheet 91
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
(;2&1

Second Revision Sheet 90
Canceling
I.P.U.C. No.28 First Revision Sheet 90 90
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 90
ELECTRIC ENERGY EFFICIENGYDEMAND SIDE MANAGEMENT
PROGRAMS
IDAHO
1 w yailab ity
1_T1he-PURPOSE
To provide conditions applicable to the programs and services deGGTibec
here n(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 spec4iedall residential, commercial, and industrial;
retail electric distribution GUsterners n�vista Gerpera+inn fnr the purpose e
meeting the e#Tc+eRt use$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 GUst�Tsree ' ,inn eieGtriG ser iGesCustomers not otherwise
specified under Tariff Schedule 91 (Fnnrgy EffinieRGy Roger djustmept) are not
eligible for seNineS nentained on this SGhedule 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 Ce�Programs to
G St�rsCustomers for the purpose of identification and implementation of cost
effective electric efficiency or demand response measures as described in this
Canili based s nes are available to GWRers of fanili and also
schedule.��t+es-b���er�+ �a�ties,�-a,�o
may he provided to tenants who have obtained appropriate ewner Gensent
AssistaRGe provided URder this SGhedule is limited tG eRd uses wheFe eleGtFiGity
s the energy source. AssistaRGe may take the form of rneRetary inGentives Or Ron
menr ry inFeRt�s as further a Rred withinr v tar�iff. The aGq uriJitTinvn orf
Issued Nevember 26 201 RJune 1, 2026 Effective Ja uapf-July 1, 20264-9
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

Second Revision Sheet 90
Canceling
I.P.U.C. No.28 First Revision Sheet 90 90
AVISTA CORPORATION
d/b/a Avista Utilities
G sterner paFti +Laden ,ender his sGhe`d�ale shall he heo�n eligibility
`"' NN`""' rr-ai�ucr— T� ca-a�.n-iurr��.�us
requirements nentained heroin
2. ELIGIBLE CUSTOMER SEGMENTS
All Gustorners On all Gustorner seg,,rnents to whorn this tarffiff is available are
with this tariff. The broad availability of this tariff does not preclude the Company
from targeting measures, markets and G +en4e-r ific 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.
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.
11-4. MEASURES
Only elen+riGElectric efficiency measures with verifiable energy savings and
demand response measures intended to achieve capacity reductions are eligible
for assmstanGe MeasurePrograms; measure eligibility may not nenessarila apply
Issued Nevember26 'MJune 1, 2026 Effective Jaruap,�--July 1, 20264-9
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

S fbhrd Revision Shoo+one
am
I�e:28 Se Revffisno; sheet 90
dihia Avmsta I Itai+ies
to all customer segments. -Final determination of applicable measures 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, distributed renewable energy, 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.
IRGentoves for distributed renewable energy measures will be limited to net
meteringfanilities operating under Avista Ut�ties Idaho/Washingt Rate
SGhedule 63 Net Metering rules. InGentives will be limited to eRergy produGtior4
net eXGeerd 100 of the average annual energy use of the fanility for the
a similar ,
e
s annual use as GaIGUlated by
the Company. Incentives will he limited to the arne int cneGified within seGtien
4.1 below. Thus markettransformutironr art Sann eFtS renewable en" yy
measi Tres in the residential and small nommernial segments
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 26Z2013 EffeGt�YeAugu'st 15,2`013
Mmisd 26 Effective July 1, 2026
Is d�by Ay,wsta Imo. 'Ut;i:tmes
B y Molly AlepNen 1 D�+r[/:In�6lrho�rl6l�boAivFaf Tlk,i{YCJd4ffdo r,

Sixth Revision Sheet 90B
Canceling
I.P.U.C. No.28 Fifth Revision Sheet 90B 90B
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 90 4. _ continued
2-.5. INCENTIVES AND NONMONETARY ASSISTANCE
4.1 Cu.,r1•n
a. FUNDING
The Company shall offer incentives for projects based upon the
incremental capital cost associated with the energy efficiency of the project-
Fn�, with energy savings are-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.
The Gernpany shall pay an incentive up to a maximum of the inGremental measure
Gest. The Gempany shall make adjustments te the perGeRt of inGrerneRtal Gest paid te
attempt+r. obtain the greatest gs at the lowest nnct
+Jii. Low i�e-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 Total ResourGe Cos
Issued June 19, 202649 Effective AugusWuly 1, 20264-9
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

Sixth Revision Sheet 90B
Canceling
I.P.U.C. No.28 Fifth Revision Sheet 90B 90B
AVISTA CORPORATION
d/b/a Avista Utilities
{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.
1000,; of the pFc)jent nest:
Issued June 19, 20264-9 Effective AuqustJuly 1, 20264-9
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

Ce4Mpith Deyosion Sheet Ol1R
l3
!-f W.G. No 28 Xat}�evos, n Sheet 90B
dibla A„ista I Itaities
iv. Incentives for demand response programs shall be allowed with a
calculated value based on event schedule or other applicable
factors. Funding sources for incentives may include external sources
such as grants or the DSM Rider, to the extent described within this
schedule.
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.
SCHEDULE 90 - continued
b. NON-MONETARY ASSISTANCE
Gentonued
4 7 7 Energy effirienry programs delivered by rommi inity ar#inn agencies
/./�rr,,}�,�a,,G^t} by the Company to serveLimitedIn me vulnerable
GGttttttGC ��.� �rr�m�Br i-rcrcrrnc
ri Steiner segments inrl, ding agepry adMinistratiye foes and health and
human safety measures;
4 7 2 LOW Gosre!eGtl it effirienGy Mea res with demonstrable energi sa�g�s
(e.g. Gornpart fl ueresrent lamps);
4 7 4 Programs rse iGS supportingTenhhaa nGi ng IGGaTregional or notional
elertrir effinienGy market transformation efforts "J
1.4 PresGriptive programs are guided by the typiGal appliGatien of that measure
• A AGGAF lanGe �h theppreviei isly rl�n� inr.entiye str �r4�ire Incentive
—Cf TS]"Q'TT l�A .]`" l""f 1Tf TfT� TfGiUT�TR..GI"ITfPG
levels for these programs are based on market nenditiens at the time of
program .Design anrd are of dependent on actual p oiert cost relative to
i prentiye ropy Inreptiyes shall not evreed incremental project rests
4.2 Non-Monetary Assistance
Non-monetary assistance is service that does not involve the granting of direct
monetary incentives to the GUstornw. 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. 4.'�Educational, training or informational activities that enhance
resource efficiency.— This may include technology or customer-
segment specific seminars, literature, trade-show booths, advertising
issued jURe 18, 2019 Effe6tlye AUgust1,2019
Issued June 1, 2026 Effective July 1, 2026
issued by Ay sta Utmiit es
R Datrisk Ehrhar, DireeftiGIgfafhataQi m0t5&i.rd Regulatory Affairs

Fourth Revision Sheet 90C
Canceling 90C
I.P.U.C. No.28 Third Revision Sheet 90C
AVISTA CORPORATION
d/b/a Avista Utilities
or other approaches to increasing the awareness and adoption of
resource efficient measures and behaviors.
ii. 4.'�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. 42.3. 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.
4.'�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
alternatives
iv.
The Company may also provide funding for Programs supporting or enhancing
local, regional or national electric efficiency market transformation efforts.
SCHEDULE 90 - continued
5. BUDGET &AND REPORTING
The Surcharges levied within Schedule 91 will be used to fund the electric
efficiency programs defined within this tariff will be fi Rde d by S irrhorges levied within
SGhedule 91. as well as the adminsitrative costs expended in support of electric
energy efficiency and demand response programs. The Company will manage
issued November 26, 2019 €ffeetive jaRuarvl, 201
issued by Avosta Utilities
I3 i RatrmGk Chrbar, DoreGtor of Ro u late i Affaings

Fifth Revision Sheet9GD
AND
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these programs to obtain resources that are cost-effective from a Utility tUTC
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 November 26, 2018 €ffestivedanuary 1, 201 o
issued by Avosta Ut;:ities
R D.;trinL Chrh.;r r)im,,fnr of Regulatory Affigire

Fmf�"rSixteenth Revision Sheet 91
Canceling
I.P.U.C. No.28 FewFteeRth Fifteenth Revision Sheet 91
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 91
ENERGY €FFICI€NGYDEMAND SIDE MANAGEMENT RIDER ADJUSTMENT -
IDAHO
APPLICABLE:
To Customers in the State of Idaho where the Company has electric service
available.- This Energy Eff"'ien^ 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 May-June 1, 2026 Effective May-July 1, 2026
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs
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