20181129PAC to IIPA 1-18.pdf

Y ROCKY MOUNTAIN
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RECIIVED
till8 FiCV 29 AH ll: I l+
'1407 W North Temple, Suite 330
Salt Lake City, Utah 8a116
November 28,2018
Eric L. Olsen (ISB# 481l)
ECHO HA WK & OLSEN, PLLC
505 Pershing Ave., Ste. 100
P.O. Box 6l 19
Pocatello, Idatro 83205
[e-mail] (C)
Dr. Lance Kaufrnan
4801 W. Yale Ave.
Denver, CO 80219
lance@ae gisinsi ght.com (C)
Anthony Yankel
12700 Lake Avenue, Unit 2505
Lakewood, Ohto 44107
[e-mail] (C)+\/
RE: ID PAC-E-18-08
IIPA lst Set Data Request (l-18)
Please find enclosed Rocky Mountain Power's Responses to IIPA lst Set Data Requests l.l-1.5,
1.7-1.8, l.12,and Ll4-1.18. The remaining responses will be provided separately. Also
providedareAttachmentsllPA l.lb-I, 1.2,1.4,1.5,1.7,1.15,and 1.18. Providedonthe
enclosed Confidential CD are Confidential Attachments IIPA l.lb-2, 1.8, and 1.17. Confidential
information is protected under the Non-Disclosure Agreement in this proceeding.
Sincerely,
1',-T-tl tJ.Mor". I pr-t
J. Ted Weston
Manager, Regulation
Enclosures
C.c.: Ronald L. Williams/PIIC [e-mail]
Jim DukePIIC [e-mail]
Kyle Williams/PIIC williamsk@.byui.edu
Val Steiner/PIIC [e-mail]
Randall C. Budge/I\ulonsanto rcb@racinelaw. net (C)
Thomas J. BudgeiMonsanto tj b@raci nelaw.net (C XW)
Maurice Brubaker/Monsanto mbrubaker@.consultbai.com (C)
Katie Iversor/Monsanto [e-mail]
B en Otto/ICL botto@.idahoconservation.org (C)
Matthew Gerhart/Sierra Club [e-mail]
Ana Boyd/Siena Club [e-mail]
Diane Hani arlIPUC diane.holt@puc. idaho. eov (C)
Edward Jewell/PUC edward/[e-mail]. sov
ROCKY MOUNTAIN
POWER
A OMSrOa{ OF mOfEORP
[:ii:C H lVtD
i,l il i:jl J 29 fil.i ll : Ctr
5b
1407 W North Temple, Suite 330
Salt Lake City, Utah 84116,3
November 29,2078
Eric L. Olsen (lSB# 481l)
ECHO HA WK & OLSEN, PLLC
505 Pershing Ave., Ste. 100
P.O. Box 6l l9
Pocatello, Idaho 83205
[e-mail] (C)
Dr. Lance Kaufrnan
4801 W. Yale Ave.
Denver, CO 80219
[e-mail] (C)
Anthony Yankel
12700 Lake Avenue, Unit 2505
Lakewood, Ohio 44107
[e-mail] (C)
RE ID PAC-E.18.08
IIPA lst Set Data Request (l-18)
Please find enclosed Rocky Mountain Power's Responses to IIPA I't Set Data Requests 1.6, 1.9-
Lll,and 1.13. AlsoprovidedareAttachmentsllPA 11.6, 1.9,1.10-2,and 1.11. Providedonthe
enclosed Confidential CD is Confidential Attachment IIPA 1.10-1. Confidential information is
protected under the Non-Disclosure Agreement in this proceeding.
Sincerely,
\J . I4d u-vhrr I pT{
J. Ted Weston
Manager, Regulation
Enclosures
C.c. : Ronald L. Williams/PIIC ron@.williamsbradbur.v.com
Jim Duke/PIIC [e-mail]
Kyle Williams/PIIC [e-mail]
Val Steiner/PIIC [e-mail]
Randall C. Budge/Monsanto [e-mail] (C)
Thomas J. Budge/Monsanto [e-mail] (CXW)
Maurice Brubaker/Jvlonsanto [e-mail] (C)
Katie Iverson/Monsanto [e-mail]
Ben Otto/lCL botto@.idahoconservation.ors (C)
Matthew Gerhart/S ierra C lub matt. serhart@sierraclub. ore
Ana Boyd/Sierra Club [e-mail]
Diane Hanian/IPUC diane.holt@puc. idatro. eov (C )
Edward Jewell/PUC edward/[e-mail]
PAC-E-18-08 / Rocky Mountain Power
November 28,2018
IIPA I't Set Data Request I
IIPA Data Request I
Please provide copies of any and all data requests submitted to you by any party
to the following proceedings and your corresponding responses to those data
requests. This is an ongoing request:
(a) Public Utility Commission of Oregon Docket No. UM 1968
(b) Washington Utilities and Transportation Commission Filing UE-180778
(c) Idaho Public Utilities Commission Case No. PAC-E-18-08
(d) Wyoming Public Service Commission Docket No.20000-539-EA-18
(e) Utah Public Service Commission Docket No: l8-035-36
Response to IIPA Data Request I
PacifiCorp objects to this request as overly broad, unduly burdensome, and
outside the scope of this proceeding. Without waiving any objections, the
company responds as follows:
a. Please referto subpart b.
b. Please refer to Attachment IIPA lb-l and Confidential Attachment IIPA lb-2
for the requested responses. The company's response to PC-BWP I provides
responses to the requested Oregon, Wyoming and Utah data requests. The
company does not waive any objections raised in the data request responses
included in the attachments.
c. IIPA is copied on all outgoing Idaho discovery in this docket per the rules.
d. Please refer to subpart b.
e. Please refer to subpart b. The attachment does not include confidential
information from Utah Docket No. l8-035-36 because Utah Administrative
Code R746-l-602 and R746-l-603 prohibits the use or disclosure of
confidential information other than for the purpose of the Utah proceeding.
Going forward, the company will prepare supplemental responses to this data
request as requests and responses are received.
The confidential attachment is provided subject to the terrns and conditions of the
confidentiality agreement in this proceeding between PacifiCorp and Idaho
Irrigation Pumpers Association, [nc.
Recordholder: Kaley McNay
Sponsor: Ted Weston
PAC-E-I8-08 / Rocky Mountain Power
November 28,2018
IIPA I't Set Data Request 2
IIPA Data Request 2
Please provide all documents, data, and files submitted by PacifiCorp to
Gannett Fleming including but not limited to:
(a) All accounting records of plant additions, retirements, transfers, sales, and
related balances identified in The Direct Testimony of John Spanos, page 4.
(b) All accounting records of plant cost of removal and gross salvage identified in
The Direct Testimony of John Spanos, page 8.
(c) The life assessment study identified in The Direct Testimony of John Spanos,
page7.
Response to IIPA Data Request 2
(a) Please refer to Attachment IIPA 1.2, specifically Attachment PC-BWP 2-l
(b) Please refer to Attachment IIPA 1.2, specifically Attachment PC-BWP 2-1.
(c) Please refer to the attachments "IIPA 1.2-1 - Steam - Gas - Wind Plant
Lives.xlsx" and "llPA 1.2-2 - Hydro Plant Lives.xlsxo' to this response for the
estimated retirement dates based on the Company's internal analysis. The term
"life assessment study" referenced in Mr. Spanos' testimony is in reference to
the Company's analysis of the probable retirement dates of each of its facilities.
Recordholder: John J. Spanos
Sponsor: John J. Spanos
PAC-E-18-08 / Rocky Mountain Power
November 28,2018
IIPA l'( Set Data Request 3
IIPA Data Request 3
Please refer to The Direct Testimony of John Spanos, page 5
(a) Please explain why the Company has not maintained the vintage of each
transaction for most distribution assets in Idaho and Utah.
(b) Does the Company intend to maintain vintage data on a going forward basis?
If no, why not?
Response to IIPA Data Request 3
Please note that distribution assets located in Utah are situs assigned to Utah, and
are not included in Idaho rates. With that clarification, the company responds as
follows:
(a) For the Utah and Idaho distribution mass property accounts, aged data was not
maintained before 2000 because the company's record system did not provide
aged retirements, but rather priced retirements based on an average unit cost.
Since 2000, the company has maintained aged data for most of the recent
vintages for Utah and Idaho distribution mass accounts. However, there is not
a long enough history for aged vintages to determine life characteristics of the
mass accounts.
(b) The company continues to maintain the non-aged data as well as the aged data
for the Utah and ldaho distribution mass accounts until there is sufficient aged
data to provide adequate results from the actuarial life analysis. Currently, the
aged data is only available for the more recent vintages so clear life
characteristics are not conclusive for actuarial analysis.
Recordholder: Kent Ipson
Sponsor: John J. Spanos
PAC-E-I8-08 / Rocky Mountain Power
November 28,2018
IIPA lst Set Data Request 4
IIPA Data Request 4
Please refer to The Direct Testimony of John Spanos, page 5, which states "For
each property groupr I used the retirement rate data to form a life table which,
when plotted, shows an original survivor curve for that property group."
(a) Please provide the data used by Mr. Spanos to calculate retirement rates.
(b) Please identify all differences between PacifiCorp's accounting records and
the data provided in part a ofthis request, and explain the reason for each
difference.
(c) Please provide the retirement rates calculated by Mr. Spanos for each property
group. Please provide such data as a computer-readable spreadsheet.
Response to IIPA Data Request 4
a. Please refer to Attachments IIPA 1.4-l and IIPA I .4-2 to this response for the
requested data.
b. Attachment IIPA I .4-3 to this data request includes the historical retirement
values as recorded by the Company. Also see Attachment IIPA I .4-7 for an
explanation of the layout of the files showing the memo and type codes used to
describe the data. The table below indicates which codes were included and
which codes were excluded as retirements in the development of the Retirement
amounts. For transactions since the previous depreciation study, additional
transactions that were not included as retirements are provided in Attachment
IIPA I .4-4to this response.
Include/Exclude
Excluded
Included
Included
Included
Included
Excluded
c. Please refer to Attachments IIPA 1.4-5 and IIPA 1 .4-6 to this response for the
requested information, which is provided in native MS Word format.
Recordholder: John J. Spanos
Sponsor: John J. Spanos
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PAC-E-I8-08 / Rocky Mountain Power
November 28,2018
IIPA lsl Set Data Request 5
IIPA Data Request 5
Please refer to The Direct Testimony of John Spanos, page 5, which
States "Therefore, the simulated plant record method was utilized to determine
life characteristics. "
(a) Please provide the data used by Mr. Spanos to utilize the simulated plant
record method.
(b) Please identify all differences between PacifiCorp's accounting records and
the data provided in part a ofthis request, and explain the reason for each
difference.
Response to IIPA Data Request 5
a. Please refer to Attachment IIPA L5 to this response for the requested
information.
b. No adjustments were made to the accounting data provided by the Company
for the data provided in the attachments to this response.
Recordholder: John J. Spanos
Sponsor: John J. Spanos
PAC-E-I8-08 / Rocky Mountain Power
November 28,2018
IIPA l'1 Set Data Request 7
IIPA Data Request 7
Please refer to Exhibit No. 2, page 30.
(a) Please provide the criteria used for mathematical matching of original
survivor curves and Iowa survivor curves.
(b) Please identify each curve for each account which was visually examined by
Mr. Spanos, but not ultimately selected to smooth the original survivor curves
Please include the images examined by Mr. Spanos.
Response to IIPA Data Request 7
a. The mathematical curve matching is performed based on a least squares
difference between the points on the original life table and a smooth survivor
curve for a given range of fit for a given band. The metric used to compare
different curves is referred to as the residual measure. and is equal to the square
root of the sum of the squares of differences divided by the number of points
within the range of fit. The lower the residual measure, the better the
mathematical fit for a given range of fit for a given band.\
b. When conducting a depreciation study, Gannett Fleming may review a number
of survivor curves for each account and/or depreciable group. Gannett Fleming
does not track every curve that has been reviewed. However, Attachments IIPA
I .7- I and IIPA L7 -2 to this response provide available survivor curves that Mr.
Spanos reviewed while performing the depreciation study.
Recordholder:John J. Spanos
John J. SpanosSponsor:
PAC-E-18-08 / Rocky Mountain Power
November 29,2018
IIPA lst Set Data Request 6
IIPA Data Request 6
Please provide all notes relied on or generated by Mr. Spanos, or any other
Gannett Fleming employee when preparing Exhibit No. 2.
Response to IIPA Data Request 6
The Company objects to this request to the extent that it seeks information
protected by attorney - client privilege. Notwithstanding that objection, please
refer to the Attachments IIPA 1.6-l and tlPA L6-2.
Recordholder: John J. Spanos
Sponsor: John J. Spanos
IIPA Data Request 9
Please refer to the Direct Testimony of Nikki L. Kobliha, page 7, which states
"Additions to property, plant and equipment balances, more commonly refened to
as capital additions, is one of the primary drivers that increases depreciation
expense." Please identify each referenced incremental capital addition and
provide the date, unit, gross plant and reason for the addition.
Response to IIPA Data Request 9
PacifiCorp objects to this request as overly broad and unduly burdensome within
the scope of this proceeding. Without waiving these objections, the company
responds as follows:
The Direct Testimony of Nikki L. Kobliha, Exhibit NLK-lT, page 7, referred to
significant issues concerning steam generating facilities. Please refer to
Attachment IIPA 1.9 which lists steam generating facility additions for projects
over $l million (total company) placed in service during the period January 2014
through September 2018; the time period since the last depreciation study. The
referenced portion of Nikki L. Kobliha's testimony is a general reference to a
primary driver for the increase to the depreciation expense for the steam
generating fleet of PacifiCorp. Providing all additions less than $l million would
be voluminous and overly burdensome, thus the attachment lists the projects
above $1 million that resulted in capital additions, by generating plant and unit.
Recordholder: Dean Wirick / Jim Etheridge
Sponsor: Nikki L. Kobliha
PAC-E-18-08 / Rocky Mountain Power
November 29,2018
IIPA l" Set Data Request 9
PAC-E-I8-08 / Rocky Mountain Power
November 28,2018
IIPA I't Set Data Request 8
IIPA Data Request 8
Please refer to the Direct Testimony of Chad A. Teply, page 12 which states "The
Company performed updated decommissioning cost studies in the 2014 to 2016
time frame ..." Please provide all decommissioning studies performed on
PacifiCorp generation resources from 2013 to the present. Please include all
related work papers, files, and deliverables.
Response to IIPA Data Request 8
Decommissioning studies performed on PacifiCorp generation resources from
2013 to the present are provided in Attachment IIPA l-le (subfolder "Attach
DPU l.3l-1") and Confidential Attachment IIPA 1.8.
The confidential attachment is provided subject to the terms and conditions of the
confidentiality agreement in this proceeding between PacifiCorp and Idaho
Irrigation Pumpers Association, Inc.
Recordholder: Grant Laughter
Sponsor: Chad Teply
PAC-E-I8-08 / Rocky Mountain Power
November 28,2018
IIPA I't Set Data Request 12
IIPA Data Request 12
Please refer to the Direct Testimony of Nikti L. Kobliha, page 9, which states
"For the Depreciation Study, steam facilities are grouped by FERC account at a
unit level." Does PacifiCorp intend to book depreciation at the unit level?
Response to IIPA Data Request 12
Yes, PacifiCorp intends to book depreciation for its steam generating facilities at
the unit level.
Recordkeeper: Justus Evangelista
Sponsor: Nikki Kobliha
PAC-E-18-08 / Rocky Mountain Power
November 29,2018
IIPA I't Set Data Request 10
IIPA Data Request 10
Please refer to Exhibit No. 2. Please provide the following information related to
this depreciation study:
(a) Request for proposal, if any, and all parties that such RFP was sent to.
(b) Contract, terms of engagement, and all other agreements between PacifiCorp
and Gannet Fleming.
(c) All invoices submitted by Gannet Fleming.
(d) Please identify each person interviewed by Mr. Spanos or other Gannet
Fleming employee in preparation for the report. Please provide the name and
position of the person interviewed, the name and position of the individual
conducting the interview, the date of the interview, and all notes or other
records of interview.
(e) Please identify each PacifiCorp facility inspected by Mr. Spanos. Please
provide the location and type of facilities inspected and all photos, notes or
other records ofthe inspection.
Response to IIPA Data Request 10
(a) There were no request for proposals (RFP) sent out to any parties for the
purpose of this depreciation study.
(b) Please refer to Confidential Attachment IIPA I . I 0. I - I .
(c) PacifiCorp objects to this request as overly broad, unduly burdensome, not
likely to lead to discovery of admissible evidence, and outside the scope of
this proceeding. Detailed invoices for depreciation studies are proprietary
between Gannett Fleming and PacifiCorp.
(d) To the extent the request seeks information projected under attorney-client
privilege, please refer to the attachments to the response to IIPA Data Request
6 and Attachment IIPA l.l0-2
(e) Please refer to the attachments to the response to IIPA Data Request 6
Recordholder: Kent Ipson/John .1. Spanos
The confidential attachment is provided subject to the terms and conditions of the
confidentiality agreement in this proceeding between PacifiCorp and Idaho
Irrigation Pumpers Association, [nc.
PAC-E-18-08 / Rocky Mountain Power
November 29,2018
IIPA lst Set Data Request l0
Sponsor: John J. Spanos
PAC-E-I8-08 / Rocky Mountain Power
November 29,2018
IIPA lst Set Data Request I I
IIPA Data Request 11
Please refer to the Direct Testimony of Nikki L. Kobliha, page 6, which states "I
believe that the Depreciation Study is well supported by the underlying
engineering and accounting data .... ". Please provide all referenced engineering
and accounting data.
Response to IIPA Data Request 11
Please refer to Attachment IIPA l.l I containing the Company's response to PC-
BWP Data Request 2.
Recordholder: Justus Evangelista / John J. Spanos
Sponsor: John J. Spanos
PAC-E-18-08 / Rocky Mountain Power
November 29,2018
IIPA I't Set Data Request l3
IIPA Data Request 13
Please refer to the Direct Testimony of Nik*i L. Kobliha, page 10, which states
"The Company has continued to experience interim retirements related to
scheduled overhauls on its natural gas facilities." Please provide the annual
maintenance expense since 2008 separately for each PacifiCorp generating
resource.
Response to IIPA Data Request 13
The Company acknowledges the request for maintenance expense, in response the
Company is providing the major overhaul expenditures for the requested period.
The Company's capitalization policy provides that overhaul or "maintenance" costs
that result in a substantial addition or betterment can be capitalized. These costs,
although sometimes described as long-term maintenance agreements with the
OEMs, do extend the life of the units and qualify as property retirement units.
The table below reflects the major overhaul capital costs by year placed in-service
for natural gas facilities:
P.dflCorp ilrtur.l G.s c€ner.drg fedlldes
M.ror OrcrhluI C.ptt l lPllccd-in-S.rvicrl
HE]RMISTON
lArE srDE 1
Recordholder: Tom Evans
Sponsor: Nikki Kobliha
Art
CHEI{AUS
crl0 ct2Gt Gr200 o,tnl ct lln:l c,loul Cl20!l ct 2015 cY2016 cvall,cI 20rl
S10,216 S&2o7 s s s s s s24,6E2 s s s
s s Sr"3s7 s St8,64e s s s s20,2il1 S (160)s
s s 757 91,643 S S 1,7s3 S1,o4o Sn S 1,007 S s s 4.il7
S r,oa Sl',en s SLtgr S Lfls S 74o S3,18!t S 2,3a8 S LrlO s1.473 S.s
$sL87r s s9.663 s s31.3C)s s6263 s s s
s s s $s s s s S s,s9E s s16,794
PAC-E-I8-08 / Rocky Mountain Power
November 28,2018
IIPA lst Set Data Request 14
IIPA Data Request 14
Please refer to the Direct Testimony of Steven R. McDougal, page 5, which
states" ... the Company will continue to recognize the stipulated life of Klamath
through a regulatory adustment in the relevant filings made in [daho." Please
provide a detailed description of the regulatory adjustments PacifiCorp intends to
make for the Klamath River hydro facilities.
Response to IIPA Data Request l4
The Company makes regulatory adjustments to reflect the impacts of the Klamath
Hydroelectric Settlement Agreement (KHSA). Consistent with the stipulation in
PAC-E-13-02, beginning in January 1,2014, the Company has been making an
adjustment to the depreciation expense and depreciation reserve so the Klamath
facilities are fully depreciated by December 31,2022. Beginning in July 1,2014,
the Company also makes an adjustment to amortizationexpense and reserve for
the Klamath Relicensing and Settlement Process costs to reflect the depreciation
through Dec 31 ,2022.
For further details please refer to adjustment 8.10 in December 2017 Results of
Operations filing.
Recordholder: Nick Highsmith
Sponsor: Steve McDougal
PAC-E-I8-08 / Rocky Mountain Power
November 28,2018
IIPA lst Set Data Request 15
IIPA Data Request 15
Please refer to Exhibit No. 3.
(a) Please provide these data as an electronically-readable spreadsheet for each of
Pacifi Corp's state j urisdictions.
(b) Please provide these data for plant balances as of December 2017.
Response to IIPA Data Request 15
(a) Please refer to Attachment IIPA l.l5
(b) The Company has not performed the requested analysis. Please refer to the
Exhibits and work papers that the Company has submitted in docket PAC-E-
l8-8 for all required documents and data necessary to perform the
calculation.
Recordholder: Nick Highsmith
Sponsor: Steve McDougal
PAC-E-18-08 / Rocky Mountain Power
November 28,2018
IIPA lsl Set Data Request 16
IIPA Data Request 16
Please refer to Direct Testimony of Chad A. Teply, page 8, which states "One
notable public policy example is Oregon Senate Bill 1547-8, which was signed
into law by the governor of Oregon on March 8,2016." Has SB 1547 affected
PacifiCorp's estimated economic lives of any generation facilities? If yes, how? If
no, why not?
Response to IIPA Data Request 16
Yes, with respect to assessing the economics of investment decisions affecting
Oregon ratepayers. Oregon's Senate Bill (SB) L547-B requires that coal-fueled
resources are to be eliminated from Oregon's allocation of electricity by January
1,2030. Beginning January 1,2030, from a cost allocation perspective, Oregon
customers will no longer pay for operating costs or plant investments incurred for
coal-fueled resources nor will Oregon customers be served by those coal-fueled
resources from a electricity perspective.
Recordholder: Steve McDougal (cost allocation), Scott Bolton (SB 1547-B)
Sponsor: Chad Teply
PAC-E-I8-08 / Rocky Mountain Power
November 28,2018
IIPA lst Set Data Request 17
IIPA Data Request l7
Please refer to Direct Testimony of Chad A. Teply, page I l, which states "The
original equipment manufacturer's year useful life recommendation has not
changed and remains consistent with the 2013 depreciation study." Please provide
documentation of the original equipment manufacturer's useful life
recommendations and maintenance recommendations. Please provide such data
for each of PacifiCorp's gas generation units.
Response to IIPA Data Request 17
Please refer to Confidential Attachment IIPA Ll7, which indicates the General
Electric (GE) LM6000 aero-derivative simple cycle combustion turbine plant
package design basis and the generator design basis of30 years. This generator
model is used in Gadsby Units 4, 5, and 6, which are the only gas-fired simple
cycle units in PacifiCorp's fleet.
PacifiCorp's 2018 depreciation study assumes 4O-year useful life for the
combined cycle gas generation units consistent with the depreciable life approved
in the 2013 depreciation study. PacifiCorp is not aware of any changes to original
equipment manufacturer (OEM) useful life recommendations in the respective
OEM specifications for combined cycle combustion turbine units since the 2013
depreciation study.
Chehalis, Currant Creek, and Hermiston combined cycle natural gas combustion
turbines (CCCT) are all General Electric (GE) 7FA combustion turbines with .03
series extension for Chehalis and Cunant Creek, and .02 series extension for
Hermiston. Please find the latest published original equipment manufacturers
(OEM) "Heavy-Duty Gas Turbine Operating and Maintenance Considerations
GER-3620N (10/17)" in the hyperlink below for review:
htttrls://www. ge.com/content/dam/eepower-
pgdp/elobal/en-US/documents/technical/eerleer-3620n-heavy-dut),-gas-
turbine-operatione-maintenance-considerations.pdf
Highly confidential information addressed from here on is available for
supervised on-site review only. Please contact Ted Weston at [phone] to
make arrangements for review.
Additional reference for Chehalis and Currant Creek CCCTs includes highly
confidential amended contract language with the OEM regarding maintenance
intervals due to advanced turbine components that were installed at the respective
identified units. The highly confidential language supersedes the maintenance
interval suggested for the GE 7FA.03 CCCT model identified in the publication
available in the hyperlink cited earlier for both Chehalis and Currant Creek units.
PAC-E-I8-08 / Rocky Mountain Power
November 28,2418
IIPA I't Set Data Request l7
With anangements made with Siemens, the OEM for Lake Side I and 2 CCCTs,
the OEM's highly confidential recommendation service bulletin for the units are
available for on-site review as well.
The confidential attachment is provided subject to the terms and conditions of the
confidentiality agreement in this proceeding between PacifiCorp and Idaho
Irrigation Pumpers Association, Inc.
Recordholder: Brad Richards (OEM maintenance contracts), Kent Ipson (2013
Depreciation Study
Sponsor: Chad Teply
PAC-E-I8-08 / Rocky Mountain Power
November 28,2018
IIPA I't Set Data Request l8
IIPA Data Request 18
Please refer to Exhibit No. 5 at the column named "Recommended End of
Depreciation Year".
(a) Please provide these data for every generating unit, including hydro
and wind facilities, in each of PacifiCorp's state jurisdictions.
(b) For each unit or facility with the recommended end of depreciation
year differing between states, please identify the year that PacifiCorp
plans to retire the unit or facility.
Response to IIPA Data Request 18
(a) For PacifiCorp's thermal units, please refer to Attachment IIPA 1.18
For PacifiCorp's owned renewable resources (hydro and wind), please refer to
the direct testimony of company witness, Timothy J. Hemstreet, specifically
Exhibit 7, column "New Proposed Plant Depreciation End Year" for hydro
resourses, and column "Proposed Retirement Year" for wind resources. Note:
the information contained in Exhibit 7 in this proceeding is the same as the
information contained in Mr. Hemstreet's testimony and exhibits in the
Depreciation Study proceedings in the state utility commissions in Oregon
(Docket UM-1968 / Exhibit PPL/501), Washington (Docket UE-180778 /
Exhibit TJH-2), Utah (Docket 18-035-36 i Exhibit RMP_(TJH-l) and
Wyoming (Docket 20000-539-EA-18 / Exhibit RMP_(TJH-I),
(b) Unit retirements are assumed for planning purposes as part of the integrated
resource planning (lRP) process. The following units or facilities that have
different depreciation years between states and their associated retirement date
assumptions for planning purposes are identified in the 201 7 IRP (or 20 I 7 IRP
Update, if there are any differences) are listed below:
o Naughton Unit 3 - January 2019 (per 2017 IRP Update; 2017 IRP was end
of201 8)o Dave Johnston plant - 2027 (end-of-depreciable-life)o Jim Bridger Unit I -2028 (assumed Regional Haze compliance
altemative)o Naughton Units I and 2 -2029 (end-of-depreciable-life)o Hayden Units I and2 - 2030 (end-of-depreciable-life)o Jim Bridger Unit 2 -2032 (assumed Regional Haze compliance
altemative)o Craig Unit 2 -2034 (end-of-depreciable-life)o Huntington plant - 2036 (end-of-depreciable-life)o Colstrip Units 3 &,4 - 2046 (end-of-depreciable-life)
PAC-E-I8-08 / Rocky Mountain Power
November 28,2018
IIPA I't Set Data Request l8
o Hunter Units I ,2, &.3 - 2042 (end-of-depreciable-life)o Jim Bridger Units 3 & 4 - 2037 (end-of-depreciable-life)
o Wyodak - 2039 (end-of-depreciable-life)
Recordholder: Tom Evans / Tim Hemstreet
Sponsor: Chad Teply / Tim Hemstreet