Customer Support

PSCo 2022 All-Source Request for Proposals


Public Service Company of Colorado ("Public Service" or "PSCo"), an operating company subsidiary of Xcel Energy Inc., is issuing this Request for Proposals ("RFP") as a component of Public Service’s 2021 Electric Resource Plan. This All-Source competitive solicitation has three RFPs to be issued:

  • Company Ownership RFP
  • Dispatchable Resources RFP
  • Renewable Resources RFP

Segmenting the Solicitation into these categories is driven by the contracting requirements for different generation technologies and ownership models. As a result, each RFP contains model contracts or term sheets, and technical specifications for ownership projects that have been tailored to address certain issues associated with each technology or ownership structure.

The bid evaluation will be conducted consistent with the methodologies and assumptions approved in the Phase I Decision (Decision No. C22-0459).

The model RFP documents, bid forms, model power purchase agreements, ownership technical specifications, and term sheets are available through the links below.

I. RFP Documents

II. RFP Bid Forms

The 2/9/2023 bid form updates are just minor backend updates to ease bid processing from the 1/13/2023 update and are the forms the Company has been emailing out with the recent NOIR replies (Feb. 8th and later). Utilizing these updated versions will greatly help out the Company in processing all bids. 

III. Model PPAs

IV. Tech Specs (for Company Ownership)

V. Term Sheets (for Company Ownership)

VI. Other

Due to technical issues with the PSCo 2022 All-Source website in accessing some files, the Company will be emailing out an updated FAQ every Friday morning until the proposals’ due date, March 1st. If you would like to receive these emails, please email a request to the Project Manager ( to be added to the RFP notification list if you have not already done so. Thank you. 

RFP Schedule

Activity Date
RFP Issuance 12/1/2022
Bidder's Conference 12/20/2022
Notice of Intent to Respond Due 2/15/2023
Proposals Due 3/1/2023
120-Day Report to Commission 8/18/2023
Commission Phase II Decision 11/16/2023

Bidder's Conference

Date & Time: Tuesday, December 20, 2022, at 9:00 AM Mountain Time
Location: 1800 Larimer St, Denver, CO 80202
Link: Webcast (external link)
Slides: Bidder's Conference Presentation Slides (PDF)

The bidder’s conference will be hosted online and in-person at 1800 Larimer Street, Denver, CO 80202, 2nd Floor Conference Room. In-person attendees will need to check in with Xcel’s building security (right side of the lobby’s security desk) for a visitor badge and will need to be escorted by an Xcel employee from the building’s 1st floor lobby starting at 8:30 A.M. Mountain Time (MT), for the 9:00 A.M. MT, December 20th, 2022 meeting. The live meeting broadcast will be recorded, and available afterward through the same webcast link above. 

Notice of Intent to Respond (NOIR)

Respondents who intend to submit a proposal(s) into the 2022 All-Source solicitation must submit a Notice of Intent to Respond (NOIR), Form A in Appendix A by the stated deadline. The NOIR will serve as registration for the All-Source Solicitation and should be submitted via email to the RFP Project Manager at the earliest date possible but no later than 4:00 P.M. Mountain Time on 2/15/2023. There is no fee required to submit a NOIR. Upon receipt of a bidder’s NOIR, the Company will respond to the bidder with a link that will enable them to submit their bids electronically to a secure file sharing site and wiring instructions for submittal of bid fees. Respondents who fail to submit a NOIR will not be able to submit bids. The Company notes that bid and fee submittal are electronic only and physical copies or checks will not be accepted. 

Proposal Submission Deadline

Proposals will be accepted until 4:00 P.M. Mountain Time on 3/1/2023. Company self-build proposals will be accepted until 4:00 P.M. Mountain Time on 2/28/2023.In the 2022 All-Source Solicitation, all proposals will be submitted electronically via a secure, confidential file upload application (XpressDRIVE). As noted above, a link will be provided to bidders via email after submission of a NOIR that will allow them to upload bids to the XpressDRIVE prior to the submission deadline.

Proposals received later than the submission deadline will be rejected and unopened, unless the Company determines, in coordination with the IE, to consider such proposals. Any bidder submitting proposals after the submission deadline should immediately send an email to documenting why the proposal was submitted late.

Each individual bid package1 should be submitted as a single .zip file with completed bid forms in executable format. Bid Form I, executive summaries and Narrative Topics should be submitted in .pdf format. In order to assist the Company in its eligibility screening and due diligence reviews, bidders are strongly encouraged to combine as much of their written proposal material into a single, cohesive.pdf file as possible. For proposals that include multiple pricing options or May Valley Longhorn extension vs. other interconnection locations under a single bid fee (see section 4.8, items (b) and (c)), bidders are to provide separate Excel workbook Bid Forms for each alternative option in the single .zip file. Projects bidding into both the Company Ownership RFP and one of the purchase RFP’s should submit separate .zip files for each RFP they are responding to.

Further instructions on how to upload bids to the XpressDRIVE will be provided in the All-Source FAQ.

Communication Protocol

The primary point of contact for all communications between the Company and potential bidders is the RFP Project Manager. This individual may be contacted at

Information regarding the RFP will not be provided via telephone inquiries or inquiries from any email other than to/from the RFP Project Manager.

Have a question? Check out our FAQ (PDF)

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