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Perryman nuclear power plant — United States of America

Nuclear power plant in Maryland, United States of America. Approximate location 39.4413, -76.2194.

NuclearMarylandUnited States of Americapressurized water reactorCancelled

Perryman nuclear power plant is a 1,690 MW nuclear power station in Maryland, United States of America. It ranks #268 of 10,884 United States of America power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 17.4% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

1,690MW installed capacity

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEM_nuc_perryman_unite.

Data status

Known data

FacilityPerryman nuclear power plant GEM-nuclear
CountryUnited States of America · Maryland GEM-nuclear
Coordinates39.4413, -76.2194 GEM-nuclear
FuelNuclear GEM-nuclear
MW installed capacity1,690 MW GEM Global Nuclear Power Tracker September 2025 unit-status sum (cancelled); cancelled project
Verification noteSum of 2 GNPT unit records in the selected cancelled project scope. source-verified
OwnerBaltimore Gas and Electric Co [100%] GEM-nuclear
Technologypressurized water reactor GEM-nuclear

Calculated from dataset

Capacity rank in country#268 / 10884 calculated
Fuel-specific rank in country#77 / 176 calculated
Capacity vs country/fuel peers1.25× · 1,350 MW · n=176 calculated
Climate12.6°C · HDD 2,493 derived from coordinates
Environmental severityC3 · 38/100 derived from coordinates

Not available

CommissionedNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

Source of the capacity and fuel values:

capacity: GEM Global Nuclear Power Tracker September 2025 unit-status sum (cancelled); fuel: GEM GNPT

In context: how this plant compares

At 1,690 MW, Perryman nuclear power plant is well above the median nuclear plant in United States of America (1,350 MW). Technically it is described as pressurized water reactor. Its current lifecycle status is “Cancelled” — so it is not yet, or no longer, generating at full output. Nuclear plants split uranium to raise steam with no direct CO₂; they run as steady baseload with very high capacity factors and the longest operating lifetimes of any thermal plant.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

How it compares & nearby plants

The #77 largest nuclear power plant of 176 in United States of America by capacity.

United States of America has 176 nuclear power plants in this dataset, together about 270,415 MW of capacity.

Nearby power plants

Location

Coordinates 39.4413, -76.2194 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Perryman nuclear power plant?

Perryman nuclear power plant is a 1,690 MW nuclear power plant in Maryland, United States of America.

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