20180507Replacement Page 2017 IRP.pdf

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Idaho Public Utilities Commission
472West Washington
Boise, lD 83702
Attention: Diane Hanian
Commission Secretary
RE: PAC-E-17-03 - PACIFICORP'S APPLICATION FOR ACKNOWLEDGEMENT
OF THE 2OlT INTEGRATED RESOURCE PLAII
Dear Ms. Hanian:
Enclosed herein for filing is a correction to PacifiCorp's 2017 IRP Update. Specifically, PacifiCorp
requests that the enclosed corrected page l0l of Chapter 7 - Eneryy Vision 2020 Update to the
20 I 7 IRP Update replace the original page I 01 of Chapter 7 in its entirety. The filing also includes
a redline showing the only correction made to page 101 was to correct the year referenced in the
last sentence of the second full paragraph to read'o...assuming commercial operation by the end
of2020", and not *2021".
Note this change does not affect the preferred portfolio, inputs or outcomes of the 2017 IRP
Update, and does affect any other materials provided. PacifiCorp has also made this correction to
the 2017 IRP Update available online at www.pacificorp.com/irp.
Informal inquiries may be directed to Ted Weston, Idaho Regulatory Manager, at [phone]
Sincerely,
Enclosures
cc:Jim Yost, Idaho Governor's Office (without enclosures)
Benjamin Otto, Idaho Conservation League (without enclosures)
Mark Stokes, Idaho Power Company (without enclosures)
Terri Carlock,Idaho Public Utilities Commission staff
Mike Louis, Idaho Public Utilities Commission staff
Randall Budge, (Monsanto) (without enclosures)
Nancy Kelly, Western Resource Advocates (without enclosures)
"^-.Drce
PACIFICORP _ 20I7 IRP UPDATE CHAPTER 7 - ENERGY VISIoN 2O2O UpoeTg
reviews and approvals, and successful transmission rights of way (ROW) acquisition, PacifiCorp
fully expects it will successfully meet the requirements necessary to ensure eligibility for 100
percent of the PTCs.
Updated Data and Assumptions
During the period between the April 4, 2017 filing of the 2017 IRP and the preparation of this
2017 IRP Update, PacifiCorp has continued to refine its economic analysis supporting the
Combined Projects. In addition to the assumption updates summarized earlier in this chapter, the
updated analysis of the Combined Projects incorporates the most current cost-and-performance
assumptions.
Wind Projects
Table 7.7 presents the winning wind bids from the 2017R RFP. The updated best-and-final pricing
received on December 21,2017 was used in the model analysis to establish the winning projects,
and the model results are presented later in this chapter. The total capacity of the winning bids is
l,3l I MW, assuming commercial operation by the end of 2020.
Table 7.7 -z0llRRFP Final Shortlist
The TB Flats I & II and Ekola Flats projects are company-benchmark resources that will be
developed under engineer, procure, and construction (EPC) agreements. The Uinta project is being
developed by Invenergy Wind Development under a build-transfer agreement (BTA). The Cedar
Springs project is being developed by NextEra Energy Acquisitions as a 50-percent BTA and a
50-percent power-purchase agreement (PPA). In total, the updated final shortlist includes 361 MW
that will be developed under BTAs, 750 MW of benchmark capacity that will be developed under
EPC agreements, and 200 MW that will deliver energy and capacity under a PPA.
In aggregate, the winning bids are expected to operate at a capacity-weighted average annual
capacity factor of 39.4 percent.
Transmission Interconnection-Restudy Process
Separate from the 20L7P.RFP process, the company completed an interconnection-restudy process
to ensure that interconnection studies reflected the most current long-term transmission plan to
construct the Aeolus-to-Bridger/Anticline D.2 segment of the Energy Gateway project by the end
of 2020. PacifiCorp transmission restudied, in serial interconnection-queue order, interconnection
requests that do not already have an interconnection agreement to determine whether the staging
TB Flats I & II (PacifiCorp)Carbon & Albany
Counties, WY 500
Cedar Springs (NextEra Energy
Acquisitions)Converse County, WY 400
Ekola Flats (Pacifi Corp)Carbon County, WY 2s0
Uinta County, WY l6lUinta (lnvenergy Wind Development)
r0l
Location Capacity (MW)Project Name @idder)
PACIFICORP - 20I7 IRP UPDATE Cueprgn 7 _ ENERGY VISIoN 2O2O UPDATE
reviews and approvals, and successful transmission rights of way (ROW) acquisition, PacifiCorp
fully expects it will successfully meet the requirements necessary to ensure eligibility for 100
percent of the PTCs.
Updated Data and Assumptions
During the period between the April 4,2017 filing of the 2017 IRP and the preparation of this
2017 IRP Update, PacifiCorp has continued to refine its economic analysis supporting the
Combined Projects. In addition to the assumption updates summarized earlier in this chapter, the
updated analysis of the Combined Projects incorporates the most current cost-and-performance
assumptions.
Wind Projects
Table 7.7 presents the winning wind bids from the 2017R RFP. The updated best-and-final pricing
received on December 21,2017 was used in the model analysis to establish the winning projects,
and the model results are presented later in this chapter. The total capacity of the winning bids is
1,311 MW, assuming commercial operation by the end of 202Q*.
Table 7.7 -20I7RRFP Final Shortlist
The TB Flats I & II and Ekola Flats projects are company-benchmark resources that will be
developed under engineer, procure, and construction (EPC) agreements. The Uinta project is being
developed by Invenergy Wind Development under a build-transfer agreement (BTA). The Cedar
Springs project is being developed by NextEra Energy Acquisitions as a 5O-percent BTA and a
50-percent power-purchase agreement (PPA). In total, the updated final shortlist includes 361 MW
that will be developed under BTAs, 750 MW of benchmark capacity that will be developed under
EPC agreements, and 200 MW that will deliver energy and capacity under a PPA.
In aggregate, the winning bids are expected to operate at a capacity-weighted average annual
capacity factor of 39.4 percent.
Transmission Intercon nection-Restudy Process
Separate from the 20I7RRFP process, the company completed an interconnection-restudy process
to ensure that interconnection studies reflected the most current long-term transmission plan to
construct the Aeolus-to-Bridger/Anticline D.2 segment of the Energy Gateway project by the end
of 2020. PacifiCorp transmission restudied, in serial interconnection-queue order, interconnection
requests that do not already have an interconnection agreement to determine whether the staging
Carbon & Albany
Counties, WY 500TB Flats I & II (PacifiCorp)
Converse County, WYCedar Springs (NextEra Energy
Acquisitions)400
Ekola Flats (PacifiCorp)Carbon County, WY 250
Uinta (lnvenergy Wind Development)Uinta County, WY I 6 I
l0l
Project Name (Bidder)Location Capacitv (MW)