20221117Errata to Application.pdf

Y ROCKY MOUNTAIN
PIO^/ER.
iiLiC E IV ED
?r?? H0Y l7 Pt{ hr 19
','' ;li''dd,?*h18 r' o *
t4O7 W. North Temple
salt Lake city, uT 84116
November 17,2022
VIA OWRNIGHT DELIWRY
Idaho Public Utilities Commission
I l33l W. Chinden Blvd.
Building 8 Suite 201A
Boise, lD 83714
Attn: Jan Noriyuki
Commission Secretary
RE CASE NO. PAC.E-22-I6
IN TIIE MATTER OF TI{E APPLICATION OF ROCKY MOUNTAIN POWER
TO UPDATE LOAD AI\[D GAS FORECASTS USED IN THE INTEGRATED
RESOURCE PLAI\ AVOIDED COST MODEL
Errata Filing
Dear Ms. Noriyuki:
On October 20,2022, Rocky Mountain Power (the "Company") filed an Application in the
above-referenced matter. Since that submission, the Company was made aware of an error in Table
I on page 3 of the Application. The years listed in the left-hand column of the
Load Forecast - May 2021 section of the table were offby one year. The Company hereby submits
the corrected Table I and a clean copy of the entire application.
Informal questions related to this matter may be directed to Mark Alder, ldaho Regulatory
Manager at [phone].
Sincerely,
SVP, Regulation and Customer/Community Solutions
Enclosures
Commission Order No. 35317. The change in the forecast is primarily due to growth expectations
for industrial and commercial customers.
Table I
Mountain Power Load Forecast Annual GWhRo
Load For.ecast -May 2022
Year TotalCalifomia Idaho Oreson Utah Washinston Wvomine FERC
3.952
4,024
4,0M
4,009
4.019
4,025
4.036
4.033
4,035
4,038
4.047
4,044
4,M7
4,048
4"059
4,W
4,071
4.084
4.101
4.tM
15,524
16,729
t8,770
19,905
202s2
21,471
23,r58
23,676
23,872
24,723
25,167
24,021
24230
24,464
24,768
25,007
25,290
25,571
25,898
26.149
26,9N
27,7t7
28,501
29,160
29,760
30,146
30,61I
31,01l
31268
3t,574
31,979
32,332
32,823
33,365
34,041
34,612
3s274
35,932
36,62
37.310
4ss0
4,574
4,577
4.537
4.513
4,50r
4.507
4.4N
4486
4487
4.506
4,504
4,521
4,542
4,584
4.ffi
4,il1
4.688
4,736
4.746
9499
9,570
9,gs
9,912
9,N6
9,863
9,928
9,892
9,938
9,921
9,985
9,96s
9,966
9,966
10,000
9,994
10,012
10,034
10,079
10.073
61,673
63,760
66,@0
68,656
69,577
71,005
73,122
73,980
74476
75,621
76,563
75,743
76463
77,262
78,330
79,152
80,162
81,173
82,336
83230
277
275
274
272
270
l4l
23
23
23
23
24
24
24
24
25
25
25
25
25
26
882
870
868
862
858
858
859
855
854
854
855
852
853
853
854
848
843
838
834
823
2022
2023
2024
202s
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2Mt
Load Forecast - May 2021
Year
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2M0
2041
FERCCaliforniaIdaho
3.93 r
3.924
3,908
3.90r
3.901
3902
3.9t0
3,910
3.909
3,913
3,925
3,929
3.941
3,9s4
3,974
3.9M
4,001
4,021
4,044
4.054
Oregon
15,162
ls,3 l0
15,706
r5,866
15,798
16,051
16385
r6,640
16,907
17,056
17273
17,078
17297
17,525
17,804
18,01I
t8269
18,528
18,830
r9.034
Utah
26,824
27,521
28,103
28,408
28,766
29,147
29.632
29,924
30294
30,603
30,984
31267
31,673
32,082
32,580
32,968
33,414
33,U4
34,327
34.675
Washington
4.526
4"506
4489
4,447
4424
4Atz
4420
4,411
4Ar7
4.426
4A5t
4,4st
4,474
4,501
4,547
4,570
4,6W
4,648
4,69
4.717
Wyoming
9,206
9427
9,470
9,665
9,674
9,66s
9,698
9,684
9,686
9,690
9,720
9,70r
9,708
9,718
9,759
9Jse
9,783
9,807
9,855
9.852
Total
60,810
61,846
a,$3
63,438
63,712
64,t87
&,927
65,447
66,089
66,562
67228
67296
67,963
68,@9
69,536
70,157
70,936
71,704
72,606
73,t73
297
295
294
29t
289
l5l
22
22
22
22
23
23
23
23
23
24
24
24
24
25
8il
863
864
860
859
859
860
856
854
85r
852
848
847
847
848
u2
836
830
825
816
Loads ue net of Dematd Side Managem€nt
Page 3
CLEAN COPY
OF COMPLETE FILING
Joe Dallas (lSB# 10330)
825 NE Multnomah Street, Suite 2000
Portland, OR97232
Telephone: (360) 560-l 937
Email : i oseph.dal las(@pac i fi corp.com
Attorneyfor Rocly Mountain Power
BEFORE TIIE IDAIIO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF THE APPLICATION
OF ROCKY MOUNTAIN POWER TO
UPDATE LOAD ATID GAS FORECASTS
USED IN THE INTEGRATED RESOURCE
PLAI\ AVOIDED COST MODEL
) CASE NO. PAC-E-22-16
)
) APPLICATION OF
)
) ROCIff MOUNTATN POWER
Rocky Mountain Power, a division of PacifiCorp, ("Compatry"), hereby respectfully
submits this Application to the Idaho Public Utilities Commission, ("Commission"), in compliance
with Order Nos. 32697 and 32802 to update the load forecast, natural gas forecast, and long-term
contract components of the Integrated Resource Plan ("IRP") avoided cost model. In support of
this Application, Rocky Mountain Power states as follows:
l. Rocky Mountain Power provides electric service to retail customers in the states of
Idaho, Utah, and Wyoming. Rocky Mountain Power is a public utility in the state of Idaho and is
subject to the Commission's jurisdiction with respect to its prices and terms of electric service to
retail customers pursuant to ldaho Code 6l-129. Rocky Mountain Power provides retail electric
service to approximately 86,500 customers in the state of Idaho.
I. BACKGROUND
2. Order No. 32697 specified that the inputs to the IRP methodology calculation,
utilized to determine the avoided cost for all new Public Utility Regulatory Policies Act of
Page I
1978 ("PURPA") qualifying facility ("QF") projects that exceed the published rate eligibility cap,
will be updated every two years upon acknowledgement of the utility's IR.P filing with the
exception of the load and the natural gas forecasts which are to be updated annually by June I't of
each year. The Commission ruled:
"We find that, in order to maintain the most accurate and up to date reJlection of o
utility's true avoided cost, utilities must update fuel price forecasts and load
forecasts annually between IRP filings. For the sake of consistency, these annual
updates should occur simultaneously with SAR updates - on June I of each year. In
addition, it is appropriate to consider long-term controct commitments because of
the potential effect thot such commitments have on a utility's load and resource
balonce. We find it reasonable to include long-term contract considerotions in an
IW Methodologt calculation at such time os the QF and utility have entered into
a signed contract for the sole and purchase of 8F power We further find it
appropriate to consider PURPA controcts thot have terminated or expired in each
utility's load and resource balonce. We find it reasonable thot all other variables
and assumptions utilized within the IRP Methodologt remain fixed between IkP
filings (every two years)."1
3. Order No. 32802 changed the due date of the annual update from June I't to
October 15ft of each year. If approved, the load forecast, natural gas forecast, and contract
information presented below will be incorporated into Rocky Mountain Power's IRP avoided cost
model. Consistent with the Commission's prior orders, this methodology will be utilized by the
Company as the starting point for negotiation of contractual avoided cost rates as of
October 15,2022.
II. LOAD FORECAST
4. The Company's May 2022 andMay 2021long-term load forecasts are summarized
in Table l. The May 2022 load forecast shows overall an increase in load compared to the
May 2021 load forecast provided in Case No. PAC-E-21-20, which was subsequently approved by
I In the matter of lhe Commissionb review of PURPA QF contract provisions including the Surrogate Avoided
Resources (SAR) and Integrated Resource Planning (IRP) methodologiesfor calculating avoided cost rates, Case
No. GNR-E-l l-03, Order No. 32697, p. 22.
Page2
Commission OrderNo. 35317. The change in the forecast is primarily due to growth expectations
for industrial and commercial customers.
Thble I
Mountain Power Load Forecast Annual GWh
Load Forccas t - ]0.[ay 2022
Year TotalCalifomia Idaho Oreson Utah Washinston Wyoming FERC
2022
2023
2024
202s
2026
2027
2028
2029
2030
203t
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
3.952
4,024
4,004
4.009
4.019
4,025
4.036
4,033
4,03s
4.038
4,047
4,044
4.047
4.048
4.059
4,060
4.071
4.0M
4.10t
4,104
15,524
16,729
18,770
19,905
20,252
2tAtt
23,1s8
23,676
23,872
24,723
25,167
24,021
24230
24Aaq
24,768
25,007
2s290
25,571
25,898
26.149
26,9n
27,717
28,501
29,160
29,760
30,146
30,6r I
3t,01I
3r268
31,574
31,979
32,332
32,823
33,365
34,041
34,612
35,274
35,932
36,662
37,310
4,550
4,574
4,577
4.s37
d513
d50l
4,507
4490
4,486
4,487
4.506
4,544
4,521
4,542
4,s84
d606
4.&7
4.688
4.736
4.746
9199
9,570
9,@s
9,912
9,9M
9,863
9,928
9,892
9,938
9,921
9,985
9,965
9,966
9,966
10,000
9,994
10,012
10,034
10,079
10,073
61,673
63,760
66,@0
68,656
69,577
71,005
73,122
73980
74,476
7s521
76,563
75,743
76,463
'17262
78,330
79,152
80,162
8r,173
82336
83230
277
275
274
272
270
l4l
23
23
23
23
24
24
24
24
25
25
25
25
25
26
882
870
868
862
858
858
859
855
854
854
855
852
853
853
854
848
843
838
834
823
Load Forecast - Mav 2021
Year
2022
2023
2024
202s
2026
2027
2028
2029
2030
203r
2032
2033
2034
203s
2036
2037
2038
2039
2040
204t
Idaho
3,931
3,924
3.908
3.901
3.901
3,902
3,910
3,910
3,9@
3.913
3,92s
3,929
3.941
3,954
3,974
3.984
4,001
4,02r
4,044
4.054
Oregon
15,162
15,3 l0
15,706
r5,866
15,798
16,051
16,385
16,640
16,907
17,056
t7 273
t7,078
t7297
t7,525
17,804
18,01I
18269
18,528
18,830
19.034
Utah
26,824
27,521
28,t03
28408
28,766
29,t47
29,632
29,924
30,294
30,603
30,984
3t267
31,673
32,082
32,580
32,968
33,4r4
33,844
34,327
34.675
Wyoming
9206
9,427
9,470
9,65
9,674
9,665
9,698
9,684
9,686
9,690
9,720
9,701
9,708
9,718
9,759
9,759
9,783
9,807
9,855
9.852
Total
60,8r0
61,846
62,833
63,438
63,712
@,t87
@,927
65447
66,089
66,562
67228
67294
67,963
68,649
69,s36
70,t5't
70,936
71,704
72,ffi
73.r73
FERCCaliforniaWashington
4,526
4,506
4189
4,447
4424
4At2
4.420
4,411
4.417
4.426
4,45t
4,451
4.474
4,501
4,s47
4,570
4,ffi
4,@8
4,699
4.717
297
295
294
291
289
15l
22
22
22
22
23
23
23
23
23
24
24
24
24
25
864
863
8@
860
859
859
860
856
854
85r
852
848
847
847
848
842
836
830
825
816
Loads tre net ofDemand Side M anagement
Page 3
III. NATURAL GAS PRICE FORECAST
5. The Company's most recent Ofiicial Forward Price Curve ("OFPC") was prepared
on September 30, 2022 (*2209 OFPC"). The price forecast used in Case No. PAC-E-21-20 was
prepared on September 30, 2021 (*2109 OFPC"). Table 2 provides the 2209 OFPC natural gas
prices summarized annually by market hub. The 2109 OFPC is also provided for reference only.
Generally gas prices in the 2209 OFPC are up over all forecast years compared to the 2 109 OFPC.
Table 2
Natural Gas Price - $lNIMBtu
Offical Forward Price Cune - (2209) - 0980/2022
Year
2022(a)
2023
2024
20?s
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2@,0
zml
Opal Gas Index Sunras Index
M.s2 $6.09
$5.39 $4.50
$4.64 $3.99
$4.s4 $3.98
$4.69 94.47
$4.78 M.85
$4.78 54.84
$4.85 $4.89
$4.99 $5.@
$s.il $5.17
$5.48 $s.s8
$5.75 $5.83
$s.83 $s.90
$5.92 $5.99
$s.86 $5.93
$6.10 $6.12
$6.37 $6.37
$6.65 $6.64
$6.78 $6.78
$7.14 $7.11
Stanfield Index San Juan Index
$5.46 $6.28
s4.34 $5.19
$3.64 V.49
$3.62 $4.43
$4.35 $4.69
$4.94 $4.88
$4.97 54.92
$5.08 $s.03
$5.25 $5.20
$5.38 $s.33
$5.66 S5.62
$5.95 35.90
$6.05 $6.01
$6.14 $6.10
$6.12 $6.08
$6.40 $6.36
$6.69 $6.66
$7.0r $6.97
$7.17 $7.15
$7.53 $7.50
Henry Hub
Index
$6.83
$5.,t4
$4.74
$4.65
$4.86
$4.9
$5.05
$5.15
$5.37
$5.49
$5.74
$6.03
$6.12
$6.23
$6.r9
$6.4't
$6.81
$7.15
$7.32
s'l.71
AECO Index
$3.76
$3.61
$3.31
$3.54
$4.15
$4.60
$4.60
$4.68
$4.80
$4.95
$5.29
$s.56
$s.63
$5.73
$5.68
$5.92
$6.18
$6.46
$6.60
$6.95
SOCALBOR
lndex
$7.0s
$6.10
$s.38
$5.46
$5.37
s5.23
$5.26
$s.38
$5.55
$5.68
$5.97
s6.27
$6.38
$6.46
$6.43
$6.72
$7.03
$7.34
$7.51
$7.87
Page 4
Offcal Fomard Price Curve I - 09i30202r
Year
2W(a)
2U3
2024
2025
2026
2027
2028
2429
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2W
z@.t
OpalCas Index Sunras Index
$4.30 $4.0s
$3.5r $3.23
s3.24 $3.01
$3.09 $3.00
$2.89 $2.87
$2.93 $2.97
$3.01 $3.01
$3.08 $3.r3
$3.25 $3.25
$3.39 $3.35
$3.46 $3.42
$3.46 $3.45
$3.6r $3.57
$3.72 $3.63
$3.79 $3.68
$3.91 $3.81
$4.09 $3.93
s4.29 M.ll
M.45 S4.n
M.6l $4.31
Henry Hub
Index
$4.02
$3.47
$3.21
s3.2s
$3.28
$3.33
$3.46
$3.60
$3.74
$3.83
$3.89
$3.90
$4.04
$4.10
$4.17
$4.30
$4.53
s4.76
$4.99
$s.14
Stanfield Index San Juan Index
$3.90 $3.8s
$3.37 53.27
$3.08 $2.99
$2.91 $2.87s2.76 52.7s
$2.77 $2.85
$2.82 $2.94
s2.92 $3.05
$3.06 $3.2r
$3.18 $3.36
$3.24 $3.42
s3.24 $3.40
$3.3s $3.54
$3.42 $3.6s
$3.47 $3.7r
$3.57 $3.81
$3.68 $3.99
$3.88 $4.19
$3.99 $4.34
$4.08 $4.48
AECO Index
$3.10
$2.6
$2.43
s2.46
$2.47
$2.45
$2.50
$2.60
$2.69
$2.77
$2.U
$2.84
p.94
$2.95
$3.01
$3.12
$3.23
$3.44
$3.s4
$3.63
SOCALBOR
Index
$5.23
$4.U
s4.20
$3.78
$3.16
s3.24
$3.31
$3.3s
$3.s3
$3.70
$3.77
$3.74
$3.88
$4.01
M.07
$4.19
$4.39
M.6l
$4.78
M.93
Thble 2 Continued
Natural Gas Price - $/MMBTU
(a)2D22Forecast gas prices are forNovember and Decemberonly
IV. CONTRACT TERMINATIONS. EXPIRATIONS. AND ADDITIONS
6. Since filing Case No. PAC-E-21-20, the Company has signed 19 long-term
contracts, including l2 long-term contracts with qualiffing facilities, for a total nameplate capacity
of l,0l 8.4 megawatts. Two long-term contracts have expired without renewal and nine long-term
contracts expired and were renewed, for a total nameplate capacity of 359.1 megawatts.
Table 3 provides a list of signed and expired or terminated contracts since October 1,2021.
7. Rocky Mountain Power currently has 38 non-PURPA, long-term power purchase
agreements with a nameplate capacity of 3,108 megawatts, and 156 PURPA QF contracts with a
nameplate capacity of 2,265 megawatts. New contracts, terminated or expired contracts, as well
as new contract pricing are all updated in the IRP model on a continuous basis.
Page 5
Table 3
lnng Term Contracts signed since the October 2021 trilinq
No.Contmct
Qualifying
Facilitv (QF)
Nameplate
MW)Start Date End Date
Hayward PaulLrrckey
SunrysiCe Solar, LCL
Tata Chmicah (Soda Ash)Pamers
Amy Famtly Holdinp
Creorgetown Inigation C orparry
Tlree Sbters Inftation Disfict
Cedu Sprigs Wind IV, LLC
Atricltue Win( LLC
Connrcrchl Enerry Managenrnl Inc.
Stahlbush Ishnd Farms, Inc.
United States ofAnrrica Departrrrf oflnterbr Bueau ofland Mgn
Doughs Coury (Galewilh Dam)
ChopinWin4 LLC
BoswellWinrd, LI-C
City ofHurbme
Oregon State Uniwnity
Pubh Utility Dbtict No. 2 ofGrant Cowrty
Pubh Utilfy Dbtict No. 2 ofGrant Cowrty
Public Util4v Dbtict No. 2 ofGrant Courty
I
2
.)
4
5
6
1
8
9
l0
ll
12
l3
t4
15
t6
t7
l8
t9
QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
QF
0.1
5.0
30.0
0.7
0.5
0.3
350.4
100.5
0.9
1.6
0.1
1.9
10.0
320.0
0.002
6.s
21.4
18.4
150.2
tzll202t
980n023
ytn023
1w023
4ltD022
6l$n022
t2l3tD024
ta3tD024
3ltD02t
6ltD022
9ltD022
\ilsD022
lrl$n022
1U2025
9lrD022
t0ltD022
UtD023
11n023
ltD023
nBtn035
9D912035
nBtnu3
t2l3tD042
313il2042
nl30l204t
nB0nqs4
DBun0s4
lL13012036
513ff2023
8812023
nBtn$4
sD9n$6
nBtn054
v3v2023
9130D027
12131D023
t2l3tD023
t2l3tD023
Total Siged MW 1,018.4
Long Tem Contracts Exrrirtd or Terminated since the October 2021 trlling
No.Contract
Qualiffing
Facilih'(QF)
Nameplate
(Mrv)Date
I
2
3
4
5
6
7
8
9
l0
ll
Dry Creek
BirchPowerCorpury, Inc
Doughs Coufy (Galewille Dam)
Pubh Utflily Dbtict No. 2 ofGrant Cormty
P'$lic Utfl{v Dbtbt No. 2 ofGant CouS
Georgetown Inigation Conpany
Cft1'ofHurbane
Mitdle Foft Inigtbn Distict
Mfuk Creek Hydro LLC
Oregon Envfuonrrntal Indrsfbs, LLC
Seattle City Lig[t
QF
QF
QF
QF
QF
QF
QF
3.4
2.6
1.9
18.4
r 50.2
0.5
0.002
0.9
3.0
3.2
175.0
4R0D022
3Btn022
4ltsD022
t2l3tD02t
n\tn02t
3Btn022
\Btn022
lz\ll202t
381n022
9130D022
2128n022
Total Terminated MW 359.1
Page 6
V. COMMUNICATIONS
Communications regarding this filing should be addressed to:
Ted Weston
Idaho Regulatory Affairs Manager
Rocky Mountain Power
1407 WestNorth Temple, Suite 330
salt Lake city, utah 84116
Telephone : [phone]
Email: ted.weston@oacifi com.com
Joe Dallas
825 NE Multnomah Street, Suite 2000
Portland, OR97232
Telephone: [phone]
Email : joseph.dal las@nacifi corp.com
In addition, Rocky Mountain Power requests that all data requests regarding this Application be
sent in Microsoft Word to the following:
By email (preferred) : datarequest@nac i fi corp.com
By regular mail Data Request Response Center
PacifiCorp
825 Multnomah, Suite 2000
Portland, Oregon 97232
Informal questions may be directed to Ted Weston, tdaho Regulatory Affairs Manager at
[phone].
VI. MODIFIED PROCEDURE
9. The Company believes that a hearing is not necessary to consider the issues
presented herein and respectfully requests that this Application be processed under Modified
Procedure; i.e., by written submissions rather than by hearing. RP 201 et seq.
8.
PageT
VII. REOUEST FOR RELIEF
WHEREFORE, Rocky Mountain Power hereby respectfully submits its updated load
forecast, natural gas forecast and QF contract information in compliance with the Commission's
directives in Order Nos. 32697 and 32802 and requests that the Commission issue an order
approving this updated information for inclusion in the Company's IRP avoided cost calculations.
DATED this l7m day of November 2022.
Respectfully submitted,
ROCKY MOUNTAIN POWER
,q \
Joe Dallas
825 NE Multnomah Street, Suite 2000
Portland, OR97232
Telephone: [phone]
Email: [e-mail]
Attorneyfor Roclcy Mountain Power
Page 8