20210818Avista to Staff 1-4.pdf

AVISTA CORPORATION
RESPONSE TO REQUEST FOR TNFORMATION
IDAHO
AVU-E-21-10
IPUC
Production Request
StaflOOl
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DATE PREPARED: 0811812021WITNESS: N/A . ,
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,',,,,- ,,.,r,'jg:.NRESPONDER: Tia Benjamin
DEPARTMENT: Regulatory Affairs
TELEPHONE: (s09) 495-222s
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ruRISDICTION
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
REQUEST:
Please provide supporting documentation for the actual balance of $487,730 .25 as of 513112021, as
stated on the Attachment A workpaper entitled "Idaho Residential Exchange Account Actual and
Projected.
RESPONSE:
See the attachment labeled "Staff PR 001 Attachment A"
AVISTA CORPORATION
RESPONSE TO REQUEST FOR TNFORMATION
ruRISDICTION: IDAHO
CASE NO: AVU-E-2l-10
REQUESTER: IPUCTYPE: Production Request
REQUEST NO.: Staff-002
DATE PREPARED: 0811812021WITNESS: N/A
RESPONDER: Tia Benjamin
DEPARTMENT: Regulatory Affairs
TELEPHONE: (509) 49s-222s
REQUEST:
Please provide supporting documentation for the BPA monthly ctedits as stated on the workpaper
titled "Idatro Residential Exchange Account - Actual and Projected."
RESPONSE:
See the attachment labeled "Staff PR_002 Attachment A" for the schedule of payments to be
received from BPA on a monthly basis. The remainder of the calculations are projections of the
amortization to be recorded in the months prior to new rates going into effect based on projected
loads.
AVISTA CORPORATION
RESPONSE TO REQUEST FOR TNFORMATTON
ruRISDICTION
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AVU-E-21-10
IPUC
Production Request
Staff-003
DATE PREPARED: 0811812021WITNESS: N/A
RESPONDER: Tia Benjamin
DEPARTMENT: Regulatory Affairs
TELEPHONE: (s09) 49s-222s
REQUEST:
For the workpaper titled "Projected Kilowatt-hours and Residential Exchange Amortization",
please provide an explanation, with supporting documentation, on how the projected
kilowatt-hours for each group are calculated.
RESPONSE:
Please see Avista's response 003C, which contains TRADE SECRET, PROPRIETARY or
CONFIDENTIAL information and exempt from public view and is separately filed under
IDAPA 31.01.01, Rule 067 and233, and Section 9-340D, Idaho Code.
The projected kilowatt-hours, by rate schedule, are derived from the Company's most recent load
forecast which is typically conducted on a semi-annual basis by the Company's Senior Forecaster
and Economist, Dr. Grant Forsyth. See the attachment labeled "Staff PR_003C Confidential
Attachment A" for a detailed description of the load forecasting methodology.
AVISTA CORPORATION
RESPONSE TO REQUEST FOR TNFORMATION
JURISDICTION
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AW-E-21-10
IPUC
Production Request
Staft-004
DATE PREPARED: 0811812021WITNESS: N/A
RESPONDER: Tia Benjamin
DEPARTMENT: Regulatory Affairs
TELEPHONE: [phone]
REQUEST:
Please provide an explanation, with supporting documentation, on how the work paper entitled
"BPA Residential Exchange Load Calculation" was created.
RESPONSE:
Avista submits monthly actual residential and small farm load (residential load) in kWh's via
BPA's secure online portal. BPA completes their own verification process of the residential load
submitted to ensure the amount of power purchased and sold equals the qualiffing residential load
as submitted by the Company. This qualiffing residential load is then multiplied by the difference
between BPA's PF Exchange rate and Avista's average system cost (ASC) to derive the
Company's Residential Exchange Program (REP) benefits. These benefits are passed on to
Avista's residential and farm customers.
Please refer to the BPA website for more detailed explanation of the residential exchange process
and calculations at
https://www.boa.eov/Finance/ResidentialExchangeProgram/Paees/default.aspx