RFP Website

Welcome to the website for the Solar and Solar paired with storage (“SPWS”) procurement programs (“Solar Procurement Programs”) issued by Duke Energy Carolinas, LLC (“DEC”) and Duke Energy Progress, LLC (“DEP” and, together with DEC, the “Companies”). To receive updates about the Companies’ Solar Procurement Programs, follow the instructions on the "Register” section of this website.

Duke Energy Carolinas and Duke Energy Progress

Today, the Companies have the privilege of serving more than 4.7 million retail customers across North Carolina and South Carolina with oversight from the North Carolina Utilities Commission (“NCUC”) and the Public Service Commission of South Carolina (“PSCSC”). Additionally, the Companies provide power to wholesale customers, including municipal and cooperative power providers, that supply utility service to customers in areas not served by Duke Energy. As a direct result of constructive policy and regulation in both states, Duke Energy currently owns and operates approximately 36,600 megawatts (“MW”) of diverse electric generating capacity dispersed throughout a 52,000-square-mile service territory that powers the economic vitality of the Carolinas.

Request for Proposals Process

The 2024 request for proposal (“RFP”) process is complete and the 2025 RFP is currently underway and not accepting additional proposals at this time. These RFPs had the following targets:

  • 2024 RFP: 1,585 MW of solar resources, including 535 MW of solar-only resources and up to 1,050 MW of solar paired with approximately 400 MW of battery storage, subject to a VAM described in the 2024 RFP Pre-Issuance Proposal document.

  • 2025 RFP: 1,700 MW of solar resources, including 900 MW of solar-only resources and up to 800 MW of solar paired with approximately 300 MW of battery storage, subject to a VAM described in the 2025 RFP Pre-Issuance Proposal document.

DEC and DEP are currently jointly implementing the 2026 RFP to procure new solar photovoltaic generating facility resources and new solar photovoltaic paired with lithium ion battery energy systems. The 2026 Solar RFP has the following target:

  • 2026 Solar RFP: 770 MW of solar resources, including 385 MW of solar-only resources and up to 385 MW of solar paired with approximately 140 MW of battery storage, subject to a VAM described in the 2026 RFP Pre-Issuance Proposal document.

The solar and SPWS resource types in the 2026 RFP will be directly interconnected to the DEC and DEP transmission systems in North Carolina and South Carolina, as described in the RFP, to reliably serve the Companies’ customers’ future energy needs.

The Companies are seeking new solar resources through the 2026 RFP process to be acquired and owned and operated by DEC or DEP (“Utility Ownership Track”) or that will be owned and operated by independent power producers and that will sell the full output including all renewable and environmental attributes generated by the facility and delivered to DEC or DEP via the Companies’ renewable power purchase agreement (“PPA”) (“Controllable PPA Track”). The 2026 Solar RFP is not soliciting non-solar resources. The Companies plan to open the bid window on July 2, 2026.

Further details about the Companies' recent RFP processes and planned 2026 Solar RFP can be found on the following sections of this website:

CRA International (“CRA”)

The Companies have retained Charles River Associates (“CRA”) to administer the RFP processes as an Independent Evaluator (“IE”). CRA is responsible for reviewing and utilizing the relevant 2024, 2025, and 2026 SPWS Program Methodology to evaluate all Proposals in accordance with the evaluation process established and described herein and ensuring that all Proposals are treated equitably throughout the RFP. Several important milestone dates for the RFP processes are shown below:

RFP Process Timelines

2026 Solar RFP
2026 RFP Stakeholder Engagement Session February 26, 2026 @ 9:00am EDT
View Presentation
Draft RFP pre-issuance document posted to RFP Website and comment period opens March 17, 2026
Stakeholder comments and feedback due to IE on draft RFP documents April 16, 2026

2025 Solar RFP
2025 RFP Stakeholder Engagement Session 1 January 29, 2025 @ 10:30am EDT
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2025 RFP Stakeholder Engagement Session 2 March 11, 2025 @ 10am EDT
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2025 RFP Stakeholder Engagement Session 3 April 9, 2025 @ 9am EDT
View Presentation
Draft RFP pre-issuance document posted to RFP Website and comment period opens April 23, 2025
Stakeholder comments and feedback due to IE on draft RFP documents May 23, 2025
2025 RFP Stakeholder Engagement Session 4 June 18, 2025 @ 1pm EDT
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Pre-solicitation Bidders Conference August 13, 2025 @ 10:30am EDT
View Presentation
Bid window opens for submission of Proposals August 15, 2025
Notice of Intent to Respond (Appendix N - NOIR) and Confidentiality Agreement due August 29, 2025
View & Download
Deadline for submission of Utility-Developed Proposals (including Bid Input Forms) September 29, 2025 @ Noon EDT
Deadline for submission of Third-Party MP-Sponsored Proposals (including Bid Input Forms) September 30, 2025 @ Noon EDT
View & Download
2025 RSC Interconnection Request Deadline September 30, 2025
    Previous Process Timelines
2024 RFP
2024 RFP Stakeholder Engagement Session 1 January 30, 2024 @ 9:30am EDT
View Presentation
2024 RFP Stakeholder Engagement Session 2 March 14, 2024 @ 9am EDT
View Presentation
Draft RFP pre-issuance document posted to RFP Website and comment period opens April 22, 2024
Stakeholder comments and feedback due on draft RFP document May 22, 2024
2024 RFP Stakeholder Engagement Session 3 June 14, 2024 @ 10:30am EDT
View Presentation
Pre-solicitation Bidders Conference August 12, 2024 @ 9:30am EDT
View Presentation
Notice of Intent to Respond (Appendix N - NOIR) due August 15, 2024
View
Deadline for submission of Utility-Developed Proposals (including Bid Input Forms) September 29, 2024 @ Noon EDT
Deadline for submission of Third-Party MP-Sponsored Proposals (including Bid Input Forms) October 7, 2024 @ Noon EDT
(Extended)
2024 RSC Interconnection Request Deadline October 7, 2024
(Extended)
2023 RFP
Draft PPA and RFP documents posted to RFP Website and comment period opens April 21, 2023
Stakeholder comments and feedback due to IE on draft RFP documents May 22, 2023
Stakeholder meeting to discuss market participant feedback on RFP documents June 20, 2023 @ 9am EDT
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Final RFP documents posted June 30, 2023
Pre-solicitation Bidders Conference August 7, 2023 @ 9am EDT
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RFP issued and Bid window for submission of Proposals opens August 15, 2023
Notice of Intent to Respond (NOIR) Form Due
(Appendix N-NOIR Form is available on the RFP Documents page)
August 15, 2023
Proposals Due September 29, 2023 @ Noon EDT
Resource Solicitation Cluster Open Scoping Meeting October 13, 2023 @ 10am EDT
View Presentation