20160505IPC to Staff 1-5.pdf

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An IDACORP Company
LISA D. NORDSTROi'
Lead Counsel
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RECEIVED
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May 5, 2016
VIA HAND DELIVERY
Jean D. Jewell, Secretary
ldaho Public Utilities Commission
472 West Washington Street
Boise, Idaho 83702
Re: Case No. IPC-E-16-08
2016-2017 Power CostAdjustment- ldaho Power Company's Response to
the First Production Request of the Commission Staff
Dear Ms. Jewell:
Enclosed for filing in the above matter please find an original and three (3) copies of
ldaho Power Company's Response to the First Production Request of the Commission
Staff.
Also enclosed are four (4) copies of a non-confidential disk containing information
responsive to Staffs production requests.
Very truly yours,
K,r-azfu*,"^
Lisa D. Nordstrom
LDN:csb
Enclosures
1221 W. ldaho St. (83702)
P.O. Box 70
Boise, lD 83707
LISA D. NORDSTROM (!SB No. 5733)RECEIVED
ldaho Power Company
1221West ldaho Street (Bstoz) ?Cl6l{ltrT -5 PH l: tr$
P.O. Box 70 _ lill',i"jg i:U*l-igBoise, ldaho 83707 .lili-li ii:li COiliil{iSSlON
Telephone: [phone]
Facsimile: [phone]
I no rd strom @ id a hopowe r. com
Attorney for ldaho Power Company
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
lN THE MATTER OF THE APPLTCATTON )
oF IDAHO POWER COMPANY FOR ) CASE NO. IPC-E-16-08
AUTHORITY TO IMPLEMENT POWER )
cosT ADJUSTMENT (PCA) RATES FOR ) IDAHO POWER COMPANY',S
ELECTRTC SERVICE FROM JUNE 1,2016 ) RESPONSE TO THE FTRST
THROUGH MAY 31,2017 ) PRODUCTTON REQUEST OF
) THE COMMTSSTON STAFF
)
COMES NOW, Idaho Power Company ("ldaho Power" or "Comp?[y"), and in
response to the First Production Request of the Commission Staff to ldaho Power
Company dated April 28, 2016, herewith submits the following information:
IDAHO POWER COMPANY'S RESPONSE TO THE FIRST
PRODUCTION REQUEST OF THE COMMISSION STAFF - 1
REQUEST NO. 1: Please provide workpapers that reflects the method used to
derive the revenue-smoothed (redistributed) base net power costs shown on lines 32
through 37, line 56, and line 67 in Matt Larkin's Exhibit #1 from the originalAurora Base
Net Power Supply Expense in base rates for the deferral period for all NPSE accounts.
Please include allworksheets with calculations intact.
RESPONSE TO REQUEST NO. {: Please see the Excel file provided on the
non-confidential CD. Per the terms of the settlement stipulation approved in Order No.
33307 in Case No. !PC-E-15-15,1 this file shapes currently approved base net power
supply expenses ("NPSE") utilizing final approved monthly base rate revenues from the
June 2014 through May 2015 forecast year from the Company's 2014 Power Cost
Adjustment ("PCA") filing, Case No. IPC-E-14-05.
The response to this Request is sponsored by Matt Larkin, Revenue
Requirement Manager, ldaho Power Company.
' "Parties agree . . . to a monthly shaping that reflects normalized test year base revenue as
determined in the most recent case in which base NPSE was reset." Application, Case No. IPC-E-I5-15,
p. 6.
IDAHO POWER COMPANY'S RESPONSE TO THE FIRST
PRODUCTION REQUEST OF THE COMMISSION STAFF - 2
REQUEST NO. 2: Please provide workpapers used to calculate the percentages
in lines 6 and 7 of Matt Larkin's Exhibit 1 including an explanation of the method and
basis used to determine the amounts. Please include all worksheets with calculations
intact.
RESPONSE TO REQUEST NO. 2: Please see the Exce! file provided on the
non-confidential CD. The percentages contained in the Excel spreadsheet were
calculated based on the proportion of days within each billing cycle that fall before and
after June 1.
The response to this Request is sponsored by Matt Larkin, Revenue
Requirement Manager, ldaho Power Company.
IDAHO POWER COMPANY'S RESPONSE TO THE FIRST
PRODUCTION REQUEST OF THE COMMISSION STAFF - 3
REQUEST NO. 3: Please provide a spreadsheet listing the 320 MW of solar and
50 MW of wind projects that are expected to come on-line in the 2016-2017 PCA year.
Please include the name of each project, the latitude and longitude of each project, the
nameplate capacity of each project, the type of solar afiay for the solar projects, the
expected on-line date for each project, the expected MWh production during the 2016-
2017 PCA year for each project, the owner's name, and the current estimated
percentage of completed construction for each project.
RESPONSE TO REQUEST NO. 3: Please see the Excel spreadsheet provided
on the non-confidential CD listing the data requested for the 320 megawatts ("MW") of
solar and 50 MW of wind projects that are expected to come on-line in the 2016-2017
PCA year. ldaho Power is unable to provide specific information on the current
estimated percentage of completed construction for each project as the owners of the
projects do not provide this information.
The response to this Request is sponsored by Matt Larkin, Revenue
Requirement Manager, ldaho Power Company.
IDAHO POWER COMPANY'S RESPONSE TO THE FIRST
PRODUCTION REQUEST OF THE COMMISSION STAFF - 4
REQUEST NO. 4: Please provide data on the 2015 forecasted and current
reservoir levels for the Upper Snake River Basin.
RESPONSE TO REQUEST NO. 4: The figure below, produced by the U.S.
Bureau of Reclamation, shows Upper Snake reservoir storage for water years 2015 and
2016. The blue line indicates Upper Snake reservoir storage for water year 2016, the
green line indicates storage for water year 2015, and the red line indicates average
reservoir storage for the Upper Snake reservoir system.
JCK+PHL+RI R+GRS+I SL+AMF+MT N - Crf,rent Ycar
- Prcvious Y"ar
- Avera€e
OCT NOV t'EC JfiN FEB ]mR AFR l'IfiY JUH JUL AUG SEP
1^lY2O 16
O'./O2/2OL6 ot3.44
This Upper Snake reservoir storage under average, water year 2015, and water 2016
conditions graph can be found at (http://www. usbr.qov/on-bin/oraphw.pl?snasvs a0.
Upper Snake reservoir storage in March 2015 was higher than normal
(approximately 120 percent of normal mid-March 2015), as indicated by the green line
in the above figure. During that same time period, snowpack conditions above Snake
River at American Falls were below normal (approximately 85 percent of normal
IDAHO POWER COMPANY'S RESPONSE TO THE FIRST
PRODUCTION REQUEST OF THE COMMISSION STAFF - 5
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mid-March 2015). This was due to below normal winter precipitation aided by a
considerably warmer than normal January through March. The combined warm
temperatures and Iow winter precipitation resulted in the Upper Snake River basin
experiencing an early snowmelt run-off, leaving little to no low and mid-elevation snow
by mid-March 2015. As a result, the 2015 forecast for the Upper Snake reservoir
system was 400,000 acre-feet short of filling. Below Milner Dam, the 2015 streamflow
forecast indicated that no flood control releases would occur, flow augmentation
releases would be below normal, and full allocation of ldaho Power primary storage
would be released from American Falls Reservoir.
Upper Snake reservoir storage in March 2016 was approximately 99 percent of
normal mid-March 2016, as indicated by the blue line in the above chart. Due to near
norma! winter temperatures and near normal precipitation throughout the Upper Snake,
more low to mid-elevation snowpack remained intact going into March 2016, when
compared to March 2015. Snowpack above Snake River at American Falls was 95
percent of normal mid-March 2016. Yet, given that snowpack remained below normal,
the 2016 forecast for the Upper Snake reservoir system was approximately 50,000
acre-feet short of filling. Below Milner Dam, the 2016 streamflow forecast indicated that
no flood control releases would occur, flow augmentation releases would be near
normal, and ful! allocation of Idaho Power primary storage would be released from
American Falls Reservoir.
The response to this Request is sponsored by Kresta Davis-Butts, Operations
Hydrology Leader, ldaho Power Company.
IDAHO POWER COMPANY'S RESPONSE TO THE FIRST
PRODUCTION REQUEST OF THE COMMISSION STAFF - 6
REQUEST NO. 5: Please provide the Actual ldaho Jurisdictional Billing Monthly
Sales for each customer class from line 5 of Mr. Larkin's Exhibit No. 1. Please provide
this breakdown for each month listed in the exhibit.
RESPONSE TO REQUEST NO. 5: Please see the Excel spreadsheet provided
on the non-confidential CD reflecting actual billed kilowatt-hour by customer class for
the PCA period April 2015 through March 2016.
The response to this Request is sponsored by Matt Larkin, Revenue
Requirement Manager, Idaho Power Company.
DATED at Boise, ldaho, this Sth day of May 2016.
IDAHO POWER COMPANY'S RESPONSE TO THE FIRST
PRODUCTION REQUEST OF THE COMMISSION STAFF - 7
Attorney for ldaho Power Company
CERTIFICATE OF SERVICE
I HEREBY CERTIFY that on the Sth day of May 2016 t served a true and correct
copy of IDAHO POWER COMPANY'S RESPONSE TO THE FIRST PRODUCTION
REQUEST OF THE COMMISSION STAFF upon the following named parties by the
method indicated below, and addressed to the following:
Commission Staff
Brandon Karpen
Deputy Attorney General
ldaho Public Utilities Commission
47 2 W est Wash i ngton (83702)
P.O. Box 83720
Boise, ldaho 83720-007 4
lndustrial Customerc of ldaho Power
Peter J. Richardson
Gregory M. Adams
RICHARDSON ADAMS, PLLC
515 North 27th Street (83702)
P.O. Box 7218
Boise, ldaho 83707
Dr. Don Reading
6070 Hill Road
Boise, ldaho 83703
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IDAHO POWER COMPANY'S RESPONSE TO THE FIRST
PRODUCTION REQUEST OF THE COMMISSION STAFF - 8