2026-DOC 00004
Published On: 05/27/2026

Question: Could Duke please provide the referenced CT standard detail drawings listed in GDLP-STD-TRM-00011 Rev. 001, specifically CT-77000 through CT-77004, along with any updated revisions or associated standard substation/access drive detail sheets applicable to 2026 Solar RFP projects in DEP territory?

Answer: Please see the documents section of the website https://www.dukeenergyrfpcarolinas.com/2026-FAQ-Documents. Any documents provided are for reference only and are subject to changes by the Companies.

2026-DOC 00003
Published On: 05/11/2026

Question: Can you clarify / help us reconcile, 1. this statement from Appendix O: “ii. A Facility that bids both solar-only and SPWS resource types must have the same maximum export at the Point of Interconnection for both resource types.”, with, 2. this statement in Section C.(b); “storage resources must be… sized 35-40% of the maximum export MWac of the Facility’s POI”. Can you provide examples of what solar + storage configurations would work within this framework?

Answer: For the 2026 Solar and Solar Paired with Storage RFP:

1. The Interconnection Rating for solar-only and SPWS offers for the same facility must be identical.
2. The capacity of the battery storage component of the SPWS offer must be sized to 35-40% of the Interconnection Rating.

2026-DOC 00002
Published On: 05/04/2026

Question: Will there be a general interconnection guidance document released just like in 2025? Trying to ascertain the amount for the IC Study Fee and IC Study Deposit.

Answer: Yes, it will be posted by May 15, 2026. 

2026-DOC 00001
Published On: 03/24/2026

Question: Where is the heatmap located?

Answer: The heatmap will be available in mid-April 2026. It will be shared on OATI OASIS (www.oasis.oati.com) for Duke Energy Progress and Duke Energy Carolinas.