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Preliminary 2025 facility recordProposed

New Castle, PA · EIA plant 67984

Firefly Solar PA

Firefly Solar PA is a solar power facility in New Castle, PA, with 402 MW of proposed capacity.

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Operating capacity0 MW0 operating generators
Proposed capacity402 MW1 proposed generators
UtilityVesper Energy Development LLCEIA-reported operator
Balancing authorityPJMPJM Interconnection, LLC

Capacity profile

Fuel and technology

Nameplate capacity
OperatingNo operating capacity reported
Proposed
Solar402 MW
Reported technologiesSolar Photovoltaic

Nearby in PA

Related facilities

PA · 3.4 miNew Castle Plant354 MW →PA · 4.4 miHickory Run Energy Station1,034 MW →PA · 14.2 miBeaver Valley Patterson Dam1 MW →PA · 14.9 miTownsend Hydro5 MW →

Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source