PacifiCorp’s 2022 All-Source Request for Proposals

Updated APRIL 3, 2024

On September 29, 2023, PacifiCorp provided notice that it was suspending its 2022 All-Source Request for Proposals. The decision to pause the RFP was the most prudent decision for the company to make at the time as it allowed the company to adapt to changing planning conditions and make critical decisions for the long-term benefit of our system and our customers. These conditions included:

  • U.S. Environmental Protection Agency approval of Wyoming’s state ozone transport plan
  • Federal court’s stay of the U.S. Environmental Protection Agency’s proposed Utah state ozone transport rule

These changes remove restrictions that limit energy production in the summer from natural gas and coal-fueled resources in Wyoming and Utah.

On April 1, 2024, PacifiCorp published the company’s 2023 Integrated Resource Plan Update. The 2023 IRP Update preferred portfolio demonstrates that with limited procurement of battery resources in the near-term, which can be achieved outside of a request for proposals process, there is material customer benefit to scaling down and delaying resource acquisition until after 2030. As such, the 2022 All-Source Request for Proposals is terminated. PacifiCorp’s 2025 IRP will inform the next steps for incremental resource acquisition.

The following notices have been emailed to PacifiCorp’s 2022AS RFP email distribution list:

For questions, please contact:

PacifiCorp received approval for its 2022 all-source request for proposals (2022 RFP) in Utah Docket No. 21-035-52, in Washington Docket number UE-210979, and in Oregon Docket UM 2193. Please consult the dockets on the respective commission websites regarding the regulatory proceeding. Learn more about Washington’s process

2022 All-Source RFP Questions and Answers (Q&A)

An updated final list of questions and answers posed by stakeholders to the 2022AS RFP email address, through March 10, 2023, are posted here: Questions and Answers

2022 All-Source RFP Documents & Appendices

See the RFP and supporting appendices.

The main RFP document will be updated to reflect the suspended status of the milestone schedule.

PacifiCorp Transmission – Cluster Study 2 Results

PacifiCorp Transmission has completed its second annual cluster study (Cluster Study 2) and has posted studies to the Open Access Same-time Information System (OASIS) in the Generation Interconnection folder within the Cluster Queues subfolder:


PacifiCorp established an action item out of PacifiCorp’s 2021 Integrated Resource Plan (IRP) to conduct the 2022AS RFP. The 2021 IRP preferred portfolio included 1,345 megawatts (MW) of new proxy renewable resources and 600 MW of collocated energy storage by the end of 2026.  Note, these figures and locations are indicative and exclude resource capacity to meet assumed customer preference targets (voluntary renewable programs for large customers) that were included in the 2021 IRP preferred portfolio.

Through the 2022AS RFP, PacifiCorp is seeking proposals for competitively priced resources capable of interconnecting with or delivering to PacifiCorp’s transmission system in its east or west balancing authority areas (PACE and PACW, respectively).

The 2022AS RFP will consider benchmark, build-transfer, power purchase and tolling agreement for generating and storage resources as well as professional services contracts for resources such as demand response resource proposals. PacifiCorp intends to submit one or more self-build (benchmark) resources in the 2022AS RFP.

PacifiCorp will accept new and existing resources subject to certain conditions with terms between 5 and 30 years.

PacifiCorp will consider eligible bids which demonstrate their ability to be operational and deliver firm energy by December 31, 2027, or December 31, 2028 for long-lead time resources such as pumped storage hydro, geothermal and nuclear resources. 

To support this competitive solicitation and assure a fair and transparent process, three Independent Evaluators (IEs) will provide oversight services on the 2022AS RFP for the Public Service Commission of Utah, the Washington Utilities and Transportation Commission (WUTC), and the Public Utility Commission of Oregon.  Contact information is provided below.

OREGON – PA Consulting Group, Inc. –

WASHINGTON – Bates White, LLC –

UTAH – Merrimack Energy –


Questions for PacifiCorp: Any questions or comments by interested parties regarding the 2022AS RFP can be sent via email to the IEs and to PacifiCorp’s All-Source RFP mailbox:

The Utah IE also maintains a website where confidential questions may be submitted:

The 2022AS RFP schedule, subject to change, is as follows. PacifiCorp will provide further updates on the status and schedule of its 2022AS RFP (including webinar information for publicly available workshops) on this webpage as they become available.


The proposed 2022AS RFP schedule is shown below, subject to change. As indicated in its 2022AS RFP, PacifiCorp stated that it may pursue a voluntary targeted demand-side RFP in August 2022. PacifiCorp has not identified any specific needs that would require PacifiCorp to pursue such a voluntary targeted demand-side RFP in August 2022, and this is reflected in the revised schedule below. Interested demand-side bidders may submit a bid to the 2022AS RFP by following Appendix Q. All demand-side bids are due March 14, 2023, the market bid deadline.



2022AS RFP Issued to market


Interconnection and Transmission Workshop


First Bidders Conference


PacifiCorp OATT - Cluster Study Request Window closes (deadline)


Demand-side Voluntary Targeted RFP Issued to Market, as necessary  No longer applicable. PacifiCorp has not identified any specific needs that would require the Company to pursue a voluntary targeted RFP in August 2022. Any interested parties may offer demand-side bids using the 2022AS RFP and Appendix Q.


Demand-side RFP notice of intent to bid due – No longer applicable. 


Second Bidder Workshop


Cluster study results posted to OASIS / bidders notified by PacifiCorp Transmission


Demand-side Voluntary Targeted RFP bids due – No longer applicable.


Benchmark bids due – 11/15/22 UPDATE


Notice of Intent to Bid due – 11/15/22 UPDATE


PacifiCorp completes non-price scoring, bid preparation models and initial price scoring of benchmark resources in accordance with OAR 860-089-0350 (1)


Last day for RFP questions to IEs for Q&A – 1/24/23 UPDATE


IEs complete review of benchmark bid evaluations, including non-price scores, bid preparation models, and indicative pricing in comparison with proxy resources – 2/2/23 UPDATE


PacifiCorp files benchmark bid evaluation in accordance with OAR 860-089-0350 (1) – 2/2/23 UPDATE


RFP bids due from market, including demand-side bids – 2/2/23 UPDATE


Capacity factor and BESS evaluation of bids started – 9/29/23 UPDATE

To be determined (TBD)

PacifiCorp completes bid eligibility screening – 9/29/23 UPDATE


IE completes review of bid eligibility screening – 9/29/23 UPDATE


PacifiCorp completes due diligence and non-price scoring of market bids –9/29/23 UPDATE


IEs complete review of non-price scoring – 9/29/23 UPDATE


Capacity factor and BESS evaluation of bids completed – 9/29/23 UPDATE


PacifiCorp completes bid preparation models for supply-side and demand-side market bids and provides all inputs to portfolio optimization team for upload into PLEXOS alongside benchmark resources files previously provided and uploaded – 9/29/23 UPDATE


PLEXOS generates price score and preferred portfolio for each benchmark and market bid in consideration of all bids – 9/29/23 UPDATE


Final Shortlist (FSL) selected – 9/29/23 UPDATE


IEs' review of FSL completed – 9/29/23 UPDATE


Complete negotiation of T&Cs for resource agreements – 9/29/23 UPDATE


Execute agreements – 9/29/23 UPDATE


Bid validity date – 9/29/23 UPDATE


2022AS RFP – Suspended – Check back for updates  – 9/29/23 UPDATE Check back for updates

Winning bid guaranteed COD


Interconnection/Transmission Workshop and Bidder’s Conference: 

Bidder Workshops

PacifiCorp hosted an Interconnection and Transmission Workshop on May 4, 2022, and Bidder Conferences on May 6, 2022 and October 20, 2022 to provide detailed information about the 2022AS RFP. 

1.       Interconnection and Transmission Workshop:

PacifiCorp hosted a workshop for interested stakeholders and bidders to discuss the interconnection and transmission requirements for the 2022AS RFP via a webinar on May 4, 2022.

2.       Bidder’s Conference:

PacifiCorp hosted a workshop for interested stakeholders and bidders to discuss the 2022AS RFP via a webinar on May 6, 2022 and on October 20, 2022 in person at Rocky Mountain Power offices and via webinar. The final version of those slides are posted here:

PacifiCorp 2022AS RFP – Bidder's Conference – October 20, 2022


Any questions on the 2022AS RFP or related documents can be sent to Company via email at or to the IEs for Utah and Oregon at their email address above.