Estimated: Firefly Solar PA EIA plant 67984 reporting point, Lawrence County, Pennsylvania; approximate project contextVesper Energy Development LLC
ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins95% CONFIDENCEOverall confidence: 95%How well the pin's source and references back up its dates.Weighted average of how firmly 2 references support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
December 1 is a month-only placeholder for EIA’s[1] December 2027 proposal, not a firm COD; current interconnection rights need verification.EIA’s August 2026 inventory lists Vesper Energy Development LLC’s Firefly Solar PA as 401.6 MW in Lawrence County, targeting December 2027 with regulatory approvals pending and not under construction. PJM’s older legal report documents a disputed interconnection suspension.
1.00