20230616AVU to Staff 3-4.pdf

AVISTA CORPORATION RESPONSE TO REQUEST FOR INFORMATION

JURISDICTION: IDAHO DATE PREPARED: 06/09/2023 CASE NO: AVU-E-23-04 WITNESS: N/A REQUESTER: IPUC RESPONDER: Amy Parsons TYPE: Production Request DEPARTMENT: Resources Accounting
REQUEST NO.: Staff-003 TELEPHONE: [phone] REQUEST: The Company's response to Production Request No. 169 in Case No. AVU-E-23-01 states that the
weighted average price of allowances in an inventory account will be the unit price of the monthly emission expense. Please provide an example of how the weighted average price is calculated. Also, please confirm that the price is calculated on a monthly basis.
RESPONSE:
Please see Avista's response Staff_PR_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 and 233, and Section 9-340D, Idaho Code.

Please see Staff_PR_003C Confidential Attachment A. Emission expense is calculated monthly and consists of two components. First, purchased allowance inventory is spread amongst each service and jurisdiction based on the percentage of needed allowances at the end of each month. These allowances are priced at the weighted average cost of allowances held in
inventory. Through May 30, 2023, Avista participated in the only auction held so far, thus the
allowance price has remained steady at $48.50 per allowance, which is the settlement price from the first auction. The remaining allowances needed to cover each service and jurisdiction’s obligation are priced at the end of month using the then current market price for allowances. The second allowance auction was held on May 31, 2023, which had a settlement price of $56.01.
Results from the second auction will be factored in going forward.
RECEIVED
2023 JUNE 14, 2023 12:02PM
IDAHO PUBLIC
UTILITIES COMMISSION
AVISTA CORPORATION RESPONSE TO REQUEST FOR INFORMATION

JURISDICTION: IDAHO DATE PREPARED: 05/30/2023 CASE NO: AVU-E-23-04 WITNESS: Clint Kalich REQUESTER: IPUC RESPONDER: Clint Kalich TYPE: Production Request DEPARTMENT: Energy Resources
REQUEST NO.: Staff-004 TELEPHONE: [phone] REQUEST:
The Company’s response to Production Request No. 2 in this case states the Lessor-Of scheduling allows total wholesale sales to be offset by in-Washington generation. Please explain whether the in-Washington generation has to be renewable energy.
RESPONSE:
In-Washington generation does not have to be renewable energy.