20180208PAC to Staff UT OCS Set 10 (1-16) (3).pdf

1407 W.NorthTemple
ROCKY MOUNTAIN Salt Lake City,UT 84116
POWER
A DIVISION OF PACIFICORP
February 5,2018
Béla Vastag
Office of Consumer Services
160 East 300 South
Salt Lake City,Utah 84111
[e-mail](C)
RE:UT Docket No.17-035-40
OCS 10th Set Data Request (1-16)
Please find enclosed Rocky Mountain Power's Responses to OCS 10th Set Data Requests 10.6
and 10.12.Provided on the enclosed Confidential CD is Confidential Attachment OCS 10.12.
Confidential information is provided subject to Public Service Commission of Utah (UPSC)Rule
746-1-602 and 746-1-603.
If you have any questions,please call me at [phone].
Sincerely,
Jana Saba
Manager,Regulation
Enclosures
C.c.Erika Tedder/DPU [e-mail]@utah.gov(C)
Dan Kohler/DPU [e-mail](C)
Dan Peaco/DPU [e-mail] (C)(W)
Aliea Afnan/DPU [e-mail] (W)
[e-mail] (W)
Philip Hayet/OCS [e-mail] (C)
Gary A.Dodge/UAE [e-mail] (C)
Phillip Russell/UAE [e-mail] (C)
Kevin Higgins/[e-mail] (C)
Neal Townsend/UAE [e-mail](C)(W)
Sophie Hays/UCE [e-mail](C)
Kate Bowman/UCE [e-mail](C)(W)
Emma Rieves/UCE [e-mail](C)(W)
Lisa Tormoen Hickey/[e-mail] (C)
Mitch Longson/Interwest [e-mail] (C)
Nancy Kelly/[e-mail](C)
Jennifer Gardner/WRA [e-mail](C)
Penny Anderson/WRA [e-mail] (W)
Peter J.Mattheis/Nucor [e-mail] (C)
Eric J.Lacey/Nucor [e-mail] (C)(W)
William J.Evans/UIEC [e-mail]
Vicki M.Baldwin/UIEC [e-mail](W)
Chad C.Baker/UIEC [e-mail] (W)
17-035-40 /Rocky Mountain Power
February 5,2018
OCS Data Request 10.6
OCS Data Request 10.6
Interconnection Costs.Please explain the process that was followed to derive the
transmission interconnection costs found in line 311 of Mr.Link's testimony.Provide all
work papers,electronicallybroken down by each wind project with all formulas intact,
used to derive that estimate.
Response to OCS Data Request 10.6
The information was included with the proposals supplied by both market and benchmark
bidders.Due to the ongoing nature of the 2017 Renewable Request for Proposals (2017R
RFP),the transmission interconnection costs for each final shortlist wind project are
considered commercially sensitive and highly confidential.The Company does not
typically permit access to commercially sensitive 2017R RFP documentationuntil the
RFP has been concluded.Please contact Jana Saba at [phone] or Yvonne Hogle at
[phone] to make arrangements for review.
Please refer to the Open Access Same-Time Information System (OASIS),which
provides access to publicly available transmission feasibility study reports,system impact
study reports and facility study reports.These reports can be accessed by utilizingthe
followingOASIS website link:
httos://www.oasis.oati.com/PPW/PPWdocs/pacificorpleiaa.htm
17-035-40 /Rocky Mountain Power
February 5,2018
OCS Data Request 10.12
OCS Data Request 10.12
OF Projects.In Direct Testimony,Mr.Link stated the followingat line 484,"The
remaining 320-MW balance of new wind resource capacity is associated with certain
qualifyingfacility projects (the "QF Projects")that are located in the Aeolus area,have
executed PPAs with PacifiCorp,and have preferential positions in the transmission
interconnection queue.The QF Projects are reasonably expected to interconnect with
PacifiCorp's transmission system after the Aeolus-to-Bridger/AnticlineLine is placed in
service and are assumed to achieve commercial operation at the end óf 2021,consistent
with the terms in their PPAs".
(a)Please identify the previously320 MW QF capacity that had a preferential position in
the transmission interconnection queue and identify the 240 MW QF that has an
executed interconnection agreement.(See Link testimony at line 173).
(b)Explain what led PacifiCorp to originally model 320 MW of QF capacity in direct
testimony,and then revise its modeling to 240 MW in rebuttal testimony.As part of
the explanation please provide dates when any information was received or changed
that factored into the modeling decisions.
(c)Please provide a copy of the executed interconnection agreement,and state when it
was executed.
Response to OCS Data Request 10.12
(a)Please refer to the Company's response to OCS Data Request 1.34 and DPU Data
Request 13.11.
(b)Please refer to the Company's response to subpart (a).
(c)Please refer to Confidential Attachment OCS 10.12,which provides copies of the July
2015 executed Large Generator Interconnection Agreements associated with the 240-
megawatt qualifying facility projects.
Confidential information is provided subject to Public Service Commission of Utah
(UPSC)Rule 746-1-602 and 746-1-603.