2026-SC-GEN 00003
Published On: 06/09/2026

Question: This question pertains to the 2026 SC Battery RFP. Can a sponsor submit two proposals at the same substation, with one project/POI request under the UOT track, and the second project/POI under the ESSA track?

Answer: The same facility may be offered under both RFP tracks (UOT and ESSA) as long each bid complies with the requirements for the respective track and is the same POI and not a different POI.

2026-SC-GEN 00002
Published On: 05/11/2026

Question: For the 2026 SC Battery RFP are you accepting projects that are located in North Carolina?

Answer: SC Battery RFP projects must be located in South Carolina, please see the DEC DEP 2026 SC Battery Draft RFP Document, Section III (Facility Eligibility Requirements and Proposal Tracks) for details.

2026-SC-GEN 00001
Published On: 05/11/2026

Question: For DEP’s 100 MW BESS procurement (assumed ~50 MW ESSA and ~50 MW UOT), how is the 50% sponsor cap applied? Specifically, is the cap calculated at the total DEP award level (i.e., 50 MW across both ESSA and UOT), or separately within each track (i.e., up to 25 MW in ESSA and 25 MW in UOT)?

Answer: The 2026 SC Battery RFP intends for the 50% market breadth requirement to apply across the procurement total and not per track or per balancing authority area.

2026-SC-INT 00001
Published On: 06/05/2026

Question: As we finalize our site selection and preliminary engineering, we have a question regarding transmission interconnection parameters. Could you please clarify where there are any interconnection restrictions by line voltages? If so, do they apply equally for DEC and DEP?

Answer: Projects must be directly interconnected to the Duke Energy Carolinas (DEC) or Duke Energy Progress (DEP) transmission system. For Utility Ownership Track (UOT) proposals, Preferred Battery Facility GSU Sizing is provided in Document 10, available at https://www.dukeenergyrfpcarolinas.com/2026-SC-Battery-Documents.