Dave Johnston — United States of America

Coal power plant in Wyoming, United States of America. Approximate location 42.8378, -105.7769.

CoalWyomingUnited States of AmericaSteamAnnounced

Dave Johnston is a 922.2 MW coal power station in Wyoming, United States of America. It ranks #664 of 10,884 United States of America power plants by installed capacity. In context, coal supplies about 16.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

922.2MW installed capacity
1966Announced

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0004158.

Data status

Known data

FacilityDave Johnston WRI
CountryUnited States of America · Wyoming WRI
Coordinates42.8378, -105.7769 WRI
FuelCoal WRI
MW installed capacity922.2 MW GEM · 2026 · L100000104281; part of a generating complex
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerPacifiCorp WRI
Commissioned1966 WRI
TechnologySteam WRI

Calculated from dataset

Capacity rank in country#664 / 10884 calculated
Fuel-specific rank in country#265 / 802 calculated
Capacity vs country/fuel peers1.65× · 558 MW · n=802 calculated
Climate7.0°C · HDD 4,094 derived from coordinates
Environmental severityC1 · 36/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset
CO₂ emissionsNot available not in dataset

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

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 817 MW for Dave Johnston Power Plant, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000104281; fuel: WRI GPPD

In context: how this plant compares

At 922.2 MW, Dave Johnston is well above the median coal plant in United States of America (558 MW). Technically it is described as Steam. Its current lifecycle status is “Announced” — so it is not yet, or no longer, generating at full output. Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.

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

How it compares & nearby plants

The #265 largest coal power plant of 802 in United States of America by capacity.

United States of America has 802 coal power plants in this dataset, together about 621,194 MW of capacity.

Nearby power plants

Location

Coordinates 42.8378, -105.7769 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Dave Johnston?

Dave Johnston is a 922.2 MW coal power plant in Wyoming, United States of America, Announced 1966.

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