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Preliminary 2025 facility recordOperating

Harford County, MD · EIA plant 1556

Perryman

Perryman is a oil & gas power facility in Harford County, MD, with 492 MW of operating capacity.

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Operating capacity492 MW5 operating generators
Proposed capacity0 MW0 proposed generators
UtilityConstellation Power Source Generation, LLCEIA-reported operator
Balancing authorityPJMPJM Interconnection, LLC

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Oil & gas492 MW
ProposedNo proposed capacity reported
Reported technologiesNatural Gas Fired Combustion TurbinePetroleum Liquids

Nearby in MD

Related facilities

MD · 0.3 miArchdiocese of Baltimore J2 MW →MD · 0.3 miArchdiocese of Baltimore L2 MW →MD · 0.5 miBaltimore City B2 MW →MD · 0.5 miBaltimore City D2 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