20210325Avista to Staff 59-Revised.pdf

AYISTA CORPORATION
RESPONSE TO REQIIEST FOR INFORMATION
RECEIVED
202lMarch 25, PM 5:00
IDAHO PUBLIC
ATILITIES COMMISSION
JURISDICTION:
CASE NO.:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AVU-E-2 1 -0 I/AVU-G -2r -Ot
IPUC
Production Request
Staff- 059 Revised
DATE PREPARED
WITNESS:
RESPONDER:
DEPARTMENT:
TELEPHONE:
0312s12021
Clint Kalich
Lori Hermanson
Power Supply
(50e) 4e5-46s8
RBQUEST:
Please provide the pro forma net power cost adjustrnent and corresponding revenue requirement
reduction or increase with updates to confidential and non-confidential schedules contained in Mr.
Kalich's Exhibit No. 9 workpapers, for the following scenarios using the natural gas forward
prices and the electricity forward prices for September l,2l2l,through August 3l,2022,based on
the most recent one-month settlement period.
a.
b.
c.
d.
Include both Palouse Wind and Rattlesnake Flat in base rates.
Exclude Palouse Wind from the base rates.
Exclude Rattlesnake Flat from the base rates.
Exclude both Rattlesnake Flat and Palouse Wind from the base rates.
RESPONSE:
See Staff PR_059 Attachment A - Comparative Summary of Wind Cases (PR59).xlsx for the
results of the 4 scenarios above with the as filed forwards and the updated forwards for the period
of l/28121-2/26121.
(Revised response: Please note the Company's original response provided the updated electric and
natural sas forwards for the period of 112812l-2126121. The label on StaflPR_059 incorrectly
stated "Variance Gas Prices" in error. The labeling has been corrected in StaflPR_O59 Revised
Attachment A.)
Page 1 of1
tu filed foruards foruards
2019
Actuals wWind woPalouse woRattlesnake e
Total Account 555
Total Account 557
{35,497 106,845 86,976 73,
49,723 632 632 632
Total Account 501 32,056 32,056 32,056
Total Account 547 71,fi',|
17,253
86,109
18,389
86,1 09
18,389
86,109
'18,389
86,
547 MT lnvasive Species
Total Montana lnvaslve Species 1,*2 '1,610 1,610 1,610 1,61
750
Total Account 447
Total Account 456
81,398 83,815 74,279 70,665 6't
55,607 5,440 5,440
't37 7',19 10s 717 67
NET EXPENSE 156,385 146,052 161 1s0
Adjustment from 2019
Difference from Base
!L,O47 21,380 11,228 2L,56L 5,609 16,370
(r0,761)
6,282
(673)
L7,O43
(11,434)(10,333)(181)
varlance Electrlc and Natural Gas Prlces (5,438)
lD Share @ 34.36%
Revenue Requirement lmpact and Natural Gas price update only)
Varlance I{o Palouse Only
lD Share @ 34.35%
Revenue Requirement lmpact
(10,761)
(3,697)
f@[.n"rove Patouse onty
Varlance No Rattlesnake Only
lDShare @34.36%
Revenue Requirement lmpact Remove Rattlesnake only
varlance No Palouse/Rattlesnake
lDShare @34.35%
Revenue Requirement lmpact Remove Both P/RS
P/f Ratio lD Share
ID SIT
After Tax (l-.21)
Conversion Factor
34.36%
0.045994
0.79
o.749719
values ln ftled case:
'Removal of Palouse, Rattlesnake, or
both, would reduce the Company's
proposed revenue requirement
incremental to the amount shown as a
reduction for the change (reduction) in
electric and natural gas prices.
Palouse Rattlesnake Both
wo
nake
wo Palouse/Rattles
w Wind Palouse Rattlesnake
75,558108j28 88,504 95,005
632 632 632 632
31,5843't,584 31,584 31,584
'1,610 1,610 1,6'10
73.759 64,896 61,309
'l
1
81,531
18,389
,531 81,531
18,389
81,531
18,389
6.291 6,291 6,29',1 6,29'r
reEA
Iffi
Staff-PR-osg Revised Attachment A - comparative Summary of Wind cases (PR59).xlsx 1of 1