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Website · About · Legal · Privacy · Changelog · © 2026 Parisi Labs
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Compare power plants

Registry, engineering, and operating metrics shown on a consistent EIA basis.

MetricPerryman
Harford County
Birdsboro Power
Berks County
Capacity492.3 MW525 MW
TechnologyNatural Gas Fired Combustion Turbine, Petroleum LiquidsNatural Gas Fired Combined Cycle
OperatorConstellation Power Source Generation, LLCBirdsboro Power LLC
Operating units61
Latest 12-month generation375.7 GWh3.10 TWh
Latest complete-year capacity factor5.8% (2025)73.4% (2025)
National technology rank#167 of 825#303 of 538
Latest EIA report2026-062026-06

Generation comes from EIA-923. Capacity, unit counts, technology, and reporting relationships come from EIA-860. Incomplete reporting years are excluded from capacity-factor comparisons.