July 18th Update

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Subject to the applicable requirements and eligibility criteria set forth in the RFP, STEC may also consider Proposals that include a Battery Energy Storage System (“BESS”) for a portion of the 500 MW of requested capacity. Any proposed BESS must be capable of providing peaking and firming service to support the delivery of dispatchable energy—either alone or in combination with other generation resources —in accordance with its rated capacity, duration, and the operational and reliability standards outlined in the RFP documentation.  Please note, however, that proposals to deliver a solar + BESS configuration will not be considered.

Participants submitting Proposals with a BESS component must clearly specify the size (MW and MWh), technology, and operational characteristics of the BESS, as well as indicate whether the Proposal contemplates an acquisition, PPA, or tolling transaction structure. All BESS-related costs, interconnection requirements, and performance guarantees must be included in the Proposal. STEC reserves the right to evaluate the benefits and risks of any BESS component as part of its overall assessment of Proposals.

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South Texas Electric Cooperative (STEC) has issued a request for proposal (RFP) to solicit bids for up to 500 megawatts (MW) of firm, dispatchable capacity (Firm RFP); and

Prospective bidders may download the RFP through the RFP Documents page on this site.  All inquiries should be made by e-mail to the address for inquiries below.

Please see the RFP for factors affecting participation and other terms and conditions and information regarding the RFP