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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.

MetricPossum Point
Prince William County
Marsh Run Generation Facility
Fauquier County
Capacity709 MW596.7 MW
TechnologyNatural Gas Fired Combined Cycle, Petroleum LiquidsNatural Gas Fired Combustion Turbine
OperatorVirginia Electric & Power CoOld Dominion Electric Coop
Operating units123
Latest 12-month generation2.34 TWh390.8 GWh
Latest complete-year capacity factor45.1% (2025)7.5% (2024)
National technology rank#3 of 705#65 of 825
Latest EIA report2026-042024-12

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.