20240827AVU to Staff_PR_029C.pdf

RECEIVED
Tuesday,August 27, 2024
AVISTA CORPORATION IDAHO PUBLIC
RESPONSE TO REQUEST FOR INFORMATION UTILITIES COMMISSION
JURISDICTION: IDAHO DATE PREPARED: 08/26/2024
CASE NO: AVU-E-24-07 WITNESS: Kevin Holland
REQUESTER: IPUC RESPONDER: Ryan Finesilver
TYPE: Production Request DEPARTMENT: Energy Supply
REQUEST NO.: Staff- 029 TELEPHONE: [phone]
REQUEST:
Please respond to the following regarding "Purchases" on Tab "Detail" of the "July 2023 - June
2024 Variance Analysis.xlsx" file:
a. Please define "Purchases" and explain what purchase items are included;
b. Please break Line 17 (actual Purchases), Line 38 (authorized Purchases), Line 59 (cost
variance of Purchases)by each item; and
c. Please explain the relationship between"Purchases" and Account 555.
RESPONSE:
Please note this response contains TRADE SECRET, PROPRIETARY or CONFIDENTIAL
information and exempt from public view and is separately filed under IDAPA 31.01.01,Rule 067
and 233, and Section 9-340D, Idaho Code.
a. Purchases represent the expenses associated with acquiring power from outside of Avista's
generation fleet. Purchases include market purchases, PPA costs and EIM costs.
b. See Staff_PR 029C Confidential Attachment A.1
c. Account 555 is designated by FERC as Purchased Power.
1 Please note,within Schultz workpaper"IPUC Deferral Analysis,"the summation of excel row 32 (555 Purchased
Power), row 38 (90% Palouse Wind and Rattlesnake Flats), and row 39 (Remove Columbia Basin Hydro
Transmission Project) in total, $99,146,597, ties to the "Authorized 555 Purchased Power" in Staff_PR_029C
Confidential Attachment A.