20220729Application.pdf

./ittsra
Avista Corp.
141 I East Mission P.O. Box 3727
Spokane. Washington 99220-37 27
Telephone [phone]
Toll Free 800-727-9170
July 29,2022
State of Idaho
Idaho Public Utilities Commission
11331 W. ChindenBlvd
Bldg 8 Suite 201-A
Boise,ID 83714
Case No. AVU-E-22-12-
Electric Fixed Cost Adjustnent Annual Rate Filing of Avista Corporation
Dear Commission Secretary:
Enclosed for electonic filing with the Commission is Avista's electric Fixed Cost Adjustment
(FCA) annual rate adjustment filing. This filing consists of Avista's Application, Exhibit A (the
Companyos proposed tariffs), Exhibit B (rate calculations), Exhibit C (12 months ending June 30,
2022 deferral), and Exhibit D (customer communications) in support of the Application. The
Company request that the proposed tariffsheets be made effective October 1,2022
Electronic versions ofthe Company's filing were emailed to the Commission, and the Service List,
on July 29,2022.
Please direct any questions on this matter to me at [phone] or Joel Anderson at (509) 495-
281 l.
Sincerely,
/s/ Patrick Ehrbar
Patrick D. Ehrbar
Director of Regulatory Affairs
Enclosures
Re:
1 DAVID J. MEYER2 VICE PRESIDENT AND CHIEF COT]NSEL FOR3 REGULATORY AND GOVERNMENTAL AFFAIRS4 AVISTA CORPORATION5 14I1 E. MISSION AVENUE6 P. O.BOX37277 SPOKANE, WASHINGTON 992208 PHONE: [phone], FAX: [phone]
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BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
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IN THE MATTER OF THE FIXED COST
ADruSTMENT MECHANISM (FCA)
ANNUAL RATE ADruSTMENT FILING
OF AVISTA CORPORATION
CASE NO. AW-E-Z}-[ ?-
APPLICATION OF AVISTA
CORPORATION
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18 I. INTRODUCTION
19 In accordance with Idaho Code $61-502, Commission Order No. 33437, and RP
20 052, Avista Corporation, doing business as Avista Utilities (hereinafter "Avista" or
2l "Company"), at 1411 East Mission Avenue, Spokane, Washington, respectfully makes
22 application to the Idaho Public Utilities Commission ("Commission") for an order
23 approving the level of electric Fixed Cost Adjustment Mechanism (FCA) revenue deferred
24 during the twelve month period from July 2021 through June 2022 and authorizing FCA
25 rates for electric service from October 1,2022 through September 30,2023. The FCA rate
26 for the Residential Group (Schedule l) is proposed to change from a present rebate rate of
27 0.189p to a proposed rebate rate of 0.405$ per kilowatt-hour. The FCA rate for the Non-
28 Residential Group (Schedules ll, 12,21,22,31 and 32) is proposed to change from a
29 presentsurchargerateofO.l9T$toaproposedrebaterateof0.034$perkilowatt-hour. The
AVISTA'S ELECTRIC FCA ANNUAL RATE ADruSTMENT FILING PAGE 1
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1 Residential Group rate change represents a$2.7 million, or 2.4o/o, decrease to Schedule 1
2 customers, and the Non-Residential group rate change represents a $2.4 million, or 2.5Yo
3 decrease. The combined effect of expiring FCA rates and the proposed 2022 rates are
4 shown on the table below.
Expiring Present
FCA Revenue
Proposed FCA
Revenue
Proposed FCA
Decrease
Residential $ (2.368.18s)$ (s.074.681\$ Q.706.497\
Non-Residential $ 2.060.121 $(35s.5s4)$ (2,4r5,67s)
The Company has requested an October 1,2022 effective date.
The Company requests that this filing be processed under the Commission's
Modified Procedure Rules (RP 201-204). Communications in reference to this Application
should be addressed to:
David J. Meyer, Esq.
Vice President and Chief Counsel for
Regulatory & Govemmental Affairs
Avista Corporation
P.O.Box3727
MSC-10
l4l1 E. Mission Ave
Spokane, WA 99220-3727
Phone: [phone]
David. Meyer@avistacorp. com
Patrick Ehrbar
Director of Regulatory Affairs
Avista Utilities
P.O.Box3727
MSC-27
1411 E. Mission Ave
Spokane, WA 99220-3727
Phone: [phone]
patrick. ehrb ar @av istacorp. com
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AVISTA'S ELECTRIC FCA ANNUAL RATE ADruSTMENT FILING PAGE 2
I II. BACKGROUND
2 The purpose of the electric FCA is to adjust the Company's Commission-
3 authorized revenues from kilowatt-hour ("kWh") sales, such that the Company's revenues
4 will be recognized based on the number of customers served under the applicable electric
5 service schedules. The FCA allows the Company to: l) deferthe difference between actual
6 FCA-related revenue received from customers through volumetric rates, and the FCA-
7 related revenue approved for recovery in the Company's last general rate case on a per-
8 customer basis; ard2) file a tariff to surcharge or rebate, by rate Broup, the total deferred
9 amount accumulated in the deferred revenue accounts for the prior January through
l0 December time period.
11 In Case Nos. AW-E-15-05 and AW-G-15-01, the Commission in Order No.
12 33437 approved for Avista a Fixed Cost Adjustnent Mechanism. On page l0 of Order
13 No. 33437, the Commission stated:
The parties have also agreed upon a three-yearr FCA pilot for electric and natural
gas operations. The FCA will compare actual FCA revenues to allowed FCA
revenues determined on a per-customer basis. Any differences will be deferred for
a rebate or surcharge. There are a number of customer safeguards, including that an
FCA surcharge cannot exceed a 3o/o anrnal rate adjustnent. Any unrecovered
balances will be carried forward to recover in future years. Furttrer, there is no limit
to the level of the FCA rebate. As part of the Stipulation, Staffand other interested
parties, will review the efficacy of the FCA after its second fulIyear to ensure it is
functioning as intended. Fixed cost adjustnent mechanisms are intended to
encourage conservation and allow customers more control over their bills. Further,
the proposed FCA will remove any financial disincentive of the Company to
encourage energy conservation.
Section 13 of the Stipulation and Settlement, as amended by Addendum to the Stipulation
On June 15, 2018, the Idaho Public Utilities Commission approved an Addendum to the Stipulation
which extended the term of the pilot for an additional year by OrderNo. 34085.
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I approved by the Commission in Order No. 34085 on June 15, 2018, provided further
2 details, reproduced below, regarding the mechanics of the fixed cost adjustrnent
3 mechanism.
A. FCA Mechanisms Term. The Parties agree to an initial FCA terrn of 4 years,
with a review of how the mechanisms have functioned conducted by Avista, Staff,
and other interested parties following the end of the third full year. Avista may
seek to extend the term of the mechanism prior to its expiration. 2
B. Rate Groups. There will be two rate groups established for both the electric
FCA and natural gas FCA:
Electric Customer Rate Groups:l. Residential - Schedule I2. Commercial - Schedules 11, 12,21,22,31,32
Natural Gas Rate Groups:1. Residential - Schedule 1012. Commercial - Schedules I l1 and ll2
C. Existing Customers and New Customers. The Parties have agreed that revenue
related to certain items discussed below would not be included in the FCA for new
customers. The result is that the Fixed Cost Adjustment Reve,nue-Per-Customer
for new customers will be less than the Fixed Cost Adjustment Revenue-Per-
Customer for existing customers. For new electric customers added after the test
period, recovery of incremental revenue related to fixed production and
hansmission costs would be excluded from the electric FCA. For new natural gas
customers added after the test period, recovery of incremental revenue related to
fixed production and underground storage facility costs would be excluded. These
modifications are included in Appendices B and C to the Stipulation.
D. Quarterly Reporting. Avista will file, within 45 days of the end of each quarter,
a report detailing the FCA activity by month.3 The reporting will also include
information related to the deferrals by rate group, what the deferrals would have
been if tracked by rate schedule, use and revenue-per-customer for existing and
new customers, and other summary financial information. Avista will provide such
Review of the mechanisms took place at a workshop March27,2019, and the Company filed a
sepaxate application with the Commission which extended the term of the FCA Mechanisms through
March 31, 2025. See also discussion starting at page 6 of this application.
As stated in Order No. 34502 Case No. AVU-E-19-06, the Company altered its quarterly reporting
from 45 days to 60 days from the end ofeach quarter.
AVISTA'S ELECTRIC FCA ANNUAL RATE ADruSTMENT FILING PAGE 4
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other information as may be reasonably requested, from time to time, in the funre
quarterly reports.
E. Annual Filings. On or before July 1, the Company will file a proposed rate
adjustnent surcharge or rebate based on the amount of deferred revenue recorded
for the prior January through December time period.a The rate adjustment would
be calculated separately for each Rate Group, with the applicable surcharge or
rebate recovered from each group on a uniform cents per kWh or per therm basis.
The proposed tariff (Schedule 75 for electric, Schedule 175 for natural gas)
included with that filing would include a rate adjustment that recovers/rebates the
appropriate deferred revenue amount over a twelve-month period effective on
October I for electric (to match with Power Cost Adjustnent and Residential
Exchange annual rate adjustments time period) and November lst for natural gas
(to match with the annual Purchased Gas Cost Adjustnent rate adjustment time
period). The deferred revenue arnount approved for recovery or rebate would be
transferred to a balancing account and the revenue surcharged or rebated during the
period would reduce the deferred revenue in the balancing account. After
determining the amount of deferred revenue that can be recovered through a
surcharge (or refunded through a rebate) by Rate Group, the proposed rates under
Schedules 75 and 175 would be determined by dividing the deferred revenue to be
recovered by Rate Group by the estimated kWh sales (Electric FCA) or therm sales
(Natural Gas FCA) for each Rate Group during the twelve-month recovery period.
Any deferred revenue remaining in the balancing account at the end of the
amortization period would be added to the new revenue deferrals to determine the
amount of the proposed surcharge/rebate for the following year.
F. lnterest. Interest will be accrued on the unamortized balance in the FCA
balancing accounts at the Customer Deposit Rate.
G. Accounting. Avista will record the deferral in account 186 - Miscellaneous
Deferred Debits. The amount approved for recovery or rebate would then be
transferred into a Regulatory Asset or Regulatory Liability account for
amortization. On the income statement, the Company would record both the
deferred revenue and the amortization of the deferred revenue through Account 456
(Other Electric Revenue), or Account 495 (Other Gas Revenue), in separate sub-
accounts. The Company would file quarterly reports with the Commission showing
pertinent information regarding the status of the current deferral. This report would
include a spreadsheet showing the monthly revenue deferral calculation for each
month of the deferral period (January - December), as well as the curre,rt and
historical monthly balance in the deferral account.
As stated in Order No. 34502 Case No. AVU-E-19-06, The company altered the deferral period of
its FCA extension to July through June by using a one-time l8-month deferral period of January l,
2020 through June 30, 2021. See also discussion starting at page 6 ofthis application.
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AVISTA'S ELECTRIC FCA ANNUAL RATE ADruSTMENT FILING PAGE 5
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H. 3% Rate lncrease Cap. An FCA surcharge, by rate group, cannot exceed a 3%o
annual rate adjustment, and any unrecovered balances will be carried forward to
future years for recovery. There is no limit to the level of the FCA rebate.
III. DRIVERS OF ELECTRIC FCA DEFERRALS
The FCA rebate deferrals for residential customers for 12 months ended June 30,
2022were the result of higher monthly use-per-customer than the use-per-customer that
was embedded in the20l9 test year (i.e., the FCA base). Residential average monthly use-
per-customer was higher by 45 kwhs. The FCA rebate deferrals for non-residential
customers for 12 months ended June 30, 2022 werc the result of slightly lower monthly
use-per-customer than the use-per-customer that was embedded in the 2019 test year (i.e.,
the FCA base). Non-residential average monthly use-per-customer was lower by 29 kWhs.
The Company has identified the primary drivers for the change in use-per-customer.
First, weather was colder than normal for 12 months ended June 30, 2022,
fluctuating with offsetting impacts from heating and cooling throughout the period, giving
rise to a weather normalization adjustments that required 20.5 million less kWhs to
residential usage (15 kWhs per customer) and required 8.6 million less kWhs (27 kWhs
per customer) to non-residential usage. The estimated FCA revenue surplus associated
with weather was approximately $ 1 .3 million residential and a surplus of $0.4 million non-
residential.
Since the 2019 test year used to set 2021 rates,Idaho customers have achieved
energy efficiency savings from participation in the Company's Demand Side Management
programs. Estimated cumulative savings since the test year (derived from the Idaho 2019,
The 2021 weather normalization adjustment was included in the Company's WA Commission Basis
Filing and the same process was applied to year-to-date Jrurrre 2022.
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AVISTA'S ELECTRIC FCA ANNUAL RATE ADruSTMENT FILING PAGE 6
I 2020 arrd202l DSM Annual Reports) reduced residential usage for 12 months ended June
2 30,2022 approximately 16 million kWhs and non-residential usage approximately 46
3 million kWhs. The estimated FCA revenue shortfall associated with energy efficiency
4 programmatic savings is $0.1 million residential and $0.3 million non-residential.
5 The "other" drivers are related to items not easily quantifiable, such as the effects
6 of non-programmatic energy efficiency, changes in business cycles, etc. The following
7 table summarizes the impact of these drivers on the FCA Revenues received from
8 customersin202l.
9 Non-Residential
Use/Cust FCA Revenue
TV. RESIDENTIAL GROTIP RATE DETERMINATION
The Company recorded $5,039,128 in the rebate direction in deferred revenue for
the electric residential customer group for 12 months ended June 30, 2022. The proposed
rate of 0.405 cents per kWh is designed to rebate $5,074,681 to the Company's residential
electric customers served under rate Schedule l. The following table summarizes the
components of the Company's request for rebate:
Driver
Residential
Use/Cust FCA Revenue
ro!91
Weather
Energy Efficielc.y
Other
45
15
55,1
sl,9.
(So.11
Sg.s32
(2el
28
(20)
(37)
So.z
So.+
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AVISTA'S ELECTRIC FCA ANNUAL RATE ADruSTMENT FILING PAGE 7
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07.2021 - 06.2022 Deferred Revenue ($5.039.128)
Add: Prior Year Residual Balance $28,019
Add: lnterest throueh 913012023 ($35.731)
Add: Revenue Related Expense Adi ($27.841)
Total for Recovery ($5.074.681)
Customer Rebate Revenue ($s.074.681)
Carryover Deferred Revenue $0
5 Exhibit B, page I shows the derivation of the proposed rate to rebate revenue of
6 $5,074,681 based on projected sales volumes for Schedule 1 customers during the
7 rebatelamortizationperiod (October2022 through September2023). As identified ontariff
8 Sheet 75B under Step 7 of "Calculation of Monthly FCA Deferral", interest on the deferred
9 balance accrues at the Customer Deposit Interest Rate.6 If the proposed rebate is approved
10 by the Commission, the 12 months ended June 30, 2022 deferral balance, plus interest
1l through September, and any outstanding balance approved for recovery in the prior year
12 FCA rate filing will be transferred into a regulatory liability balancing account. The
13 balance in the account will be reduced each month by the revenue collected under the tariff.
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15 V. NON.RESIDENTIAL GROTIP RATE DETERMINATION
16 The Company recorded $226,046 in the rebate direction in deferred revenue for the
17 electric Non-Residential Group for 1.2 months ended June 30, 2022. The proposed rebate
18 rate of 0.034 cents per kWh is designed to recover $335,554 from commercial and
19 industrial customers served under rate Schedules ll,12,21,22,31, and 32. The following
20 table summarizes the components of the Company's request for recovery:
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The Customer Deposit Interest Rate was 1.00% beginning January 2021. T}ire current rate of 1.00% has
been used as an estimate for purposes of this rate determination.
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AVISTA'S ELECTRIC FCA ANNUAL RATE ADruSTMENT FILING PAGE 8
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07.2021 - 06.2022 Deferred Revenue (s226.046\
Add: Prior Year Residual Balance (s108.817)
Add: Interest throueh 913012023 ($2.313)
Add: Revenue Related Expense Adi.s1.621
Total for Recovery ($335.ss4)
Customer Rebate Revenue ($33s.ss4)
Carryover Deferred Revenue $0
6 Exhibit B, page 3 shows the derivation of the proposed Rebate rate to return revenue
7 of $335,554 based on projected sales volumes for Schedules 11, 12, 21, 22, 31, and 32
8 during the surchargelamortization period (October 2022 tlvoagh September 2023). As
9 identified on tariff Sheet 758 under Step 7 of "Calculation of Monthly FCA Deferral",
10 interest on the deferred balance accrues at the Customer Deposit Interest Rate. If the
11 proposed surcharge is approved by the Commission, the deferral balance, plus interest
12 through September, will be transferred into the regulatory asset balancing account. The
13 balance in the account will be reduced each month by the revenue collected under the tariff.
14 Support showing the monthly calculation of the defenal balances for both the
15 Residential and Non-Residential Groups is provided as Exhibit C. These calculations were
L6 also provided to the Commission in quarterly reports (except April through June which will
l7 be provided in the Q2 report by the end of August).
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19 \rI. 3% ANNUAL RATE INCREASE TEST
20 FCA rate adjustrnent surcharges are subject to a3o/o annual rate increase limitation.
2l There is no limit to rebate rate adjustnents, therefore the reversal of any rebate rate is not
22 included in the incremental surcharge test. As described in tariff Schedule 75 (see First
23 Revision Sheet 75C), the3o/o annual rate increase limitation will be determined by dividing
AVISTA'S ELECTRIC FCA ANNUAL RATE ADruSTMENT FILING PAGE 9
I the incremental annual revenue to be collected (proposed surcharge revenue less present
2 surcharge revenue) under this Schedule by the total "normalized" revenue for the two Rate
3 Groups for the most recent January through December time period. Nomralized revenue
4 is determinedby multiplying the weather-corrected usage forthe period by the present rates
5 in effect. If the incremental amount of the proposed surcharge exceeds 3%o, only a 3o/o
6 incremental rate increase will be proposed, and any remaining deferred balance will be
7 carried over to the following year.
8 Exhibit B, page 6 shows the 3% test for the two rate groups. The incremental
9 change from the existing rebate to the proposed rebate for the residential group is a decrease
l0 of $2.7 million or approximately 2.4%o. For the Non-Residential group, the incremental
l1 change from the existing surcharge to the proposed rebate is a decrease of $2.4 million or
12 approximately 2.5o/o. As the Residential deferral incremental change is a decrease and the
13 Non-Residential deferral incremental change is also a decrease for 12 months ended June
14 30,2022 there is no proposed carry over for either rate class.
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16 VII. EXSTING CUSTOMERS AND I\IEW CUSTOMERS
17 The mechanism approved by the Commission requires that electric customers that
18 have been added since the test year are subject to an FCA Revenue-Per-Customer that
19 excludes incremental revenue related to fixed production and transmission costs. Separate
20 calculations for new versus existing customers are clearly identified in the FCA base that
2l was approved in Order No. 34499 for rates effective since December 1,2019.
22 Due to this segregation" Avista tracks the usage of new customers since January 1,
AVISTA'S ELECTRIC FCA ANNUAL RATE ADruSTMENT FILING PAGE 10
I 2019 as compared with existing customers.T In general, the average usage of new
2 customers is lower compared to the average usage of existing customers. Avista has found
3 that new customer meters, on average, have less usage in the first six to 12 months after
4 meter installation, then generally see increases in their usage until their usage is more in
5 line with the average usage of existing customers after 12 months of service. This is due,
6 in part, to the lag that occurs between when a meter is installed and billing commences,
7 and when a customer moves into the premises. Avista will continue to tack the usage of
8 new customers over the Fixed Cost Adjustment term.
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IO VIII. PROPOSED RATES TO BE EFFECTIVE OCTOBER 1.2022
1l The Company is proposing a per kilowatt-hour FCA rebate rate of 0.405(, for the
t2 Residential Group, and a per kilowatt-hour FCA rebate rate of 0.0340 for the Non-
13 Residential Group, both to become effective October 1,2022. Exhibit B to this Application
14 provides the Residential and Non-Residential Rate Calculation, and Exhibit C provides the
l5 support for the deferrals for the July 1, 2021 through June 30,2022 deferral period. Exhibit
16 A is a copy of the proposed tariff, Schedule 75, which contains the proposed FCA rates.
17 Exhibit A also includes the proposed changes to Schedule 75 in strike/underline format.
l8 Residential customers using an average of 892 kilowatt-hours per month would see
19 their monthly bills decrease from $86.29 to $84.36, a decrease of $ 1.93 per month, or 2.2o/o.
"Existing customers" were part of the test year used to set the December 1, 2019 rates (201 8 calendar
year). 'New customers" consist of all new hookups after the test year.
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AVISTA'S ELECTRIC FCA ANNUAL RATE ADruSTMENT FILING PAGE 1I
I IX. COMMUNICATIONS AI\D SERVICE OF APPLICATION
2 In conformance with RP 125, this Application will be brought to the attention of
3 the Company's customers. First, the Company has served a copy of this Application upon
4 the service list in Case Nos. AVU-E-15-05 and AVU-G-15-01, the cases that gave rise to
5 the FCA mechanisms. Second, a copy of Company's news release and customer notice is
6 provided as Attachment D. The news release will be issued in July, and the customer notice
7 will be inserted in customer bills starting in August and will run for a full billing cycle.
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9 X. REOUEST FOR RELTEF
l0 The Company requests that the Commission issue an order approving FCA
1l deferrals for the period July l, 2021 through June 30, 2022 and approve a per kilowatt-
12 hour FCA rebate rate of 0.405( for the Residential Group, and a per kilowatt-hour FCA
13 rebate rate of 0.03 4( for the Non-Residential Group, both to become effective October 1,
14 2022. The Company also requests that the Commission approve the proposed tariff
15 modifications to tariff Sheet 75. The Residential Group rebate represents a$2.7 million,
16 or 2.4Yo, decrease to Schedule I customers, and the Non-Residential group rebate results
17 in a$2.4 million, or 2.5o/o, decrease. The Company requests that the matter be processed
l8 under the Commission's Modified Procedure rules through use of written comments.
19 Dated at Spokane, Washington this 29th day of Jdy 2022.
20 AVISTA CORPORATION
BY /s/ Patrick Ehrbar
Patrick D. Ehrbar
Director of Regulatory Affairs
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AVTSTA'S ELECTRIC FCA ANNUAL RATE ADruSTMENT FILING PAGE 12
CERTIFICATE OF SERVICE
I HEREBY CERTIFY that I have this 296 day of hiy, 2022, served the Application of Avista
Corporation - Fixed Cost Rate Adjustment, upon the following parties, by mailing a copy
thereof, properly addressed with postage prepaid to:
Jan Noriyuki, Secretary
Idaho Public Utilities Commission
I l33l W. Chinden Blvd
Bldg 8 Suite 201-A
Boise,lD 837L4
i an.norivuki(Dpuc. idaho. gov
Peter J. Richardson
Greg M. Adams
Richardson Adams
515 N.27ft Street
PO Box 7218
Boise, ID 83702
[e-mail]
gres@ri chardsonsdams. com
Karl Klein
Brandon Karpen
Deputy Attorneys General
Idaho Public Utilities Commission
472W. Washington
Boise,ID 83702-0659
[e-mail]. sov
[e-mail]. gov
Marv Lewallen
28530 SW Canyon Creek Rd. - South
Wilsonville, OR 97070
[e-mail]
Larry A. Crowley
The Energy Strategies Institute, Inc.
5549 S. Cliffsedge Ave
Boise,ID 83716
[e-mail]
Wendy Wilson
Clean Energy Program Director
Snake River Alliance
223 N 6th Street, Suite 317
Boise, ID 83702
[e-mail]
Dean J. Miller, Lawyer
36208. Warm Springs
Boise,ID 83716
[e-mail]
Benjamin J. Otto
Idaho Conservation League
710 N. 6th St.
Boise, ID 83702
bo tto (g) i d ahoc ons ervati on. ore
Dr. Don Reading
6070 Hill Road
Boise,ID 83703
dreadin e(dmindspri n s. com
/s/ Patrick Ehrbar
Patrick Ehrbar
Director of Regulatory Affairs