G G Allen — United States of America
Coal power plant in North Carolina, United States of America. Approximate location 35.1897, -81.0122.
CoalNorth CarolinaUnited States of America
G G Allen is a 1,148.4 MW coal power station in North Carolina, United States of America. It is operated by Duke Energy Carolinas LLC. Based on reported annual generation of 895 GWh, it can supply roughly 256k homes. It ranks #510 of 10,884 United States of America power plants by installed capacity. Commissioned in 1959, it is around 67 years old — an older, legacy facility. 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).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0002718.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.
capacity: WRI GPPD; fuel: WRI GPPD
In context: how this plant compares
At 1,148.4 MW, G G Allen is well above the median coal plant in United States of America (558 MW). 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.
Key facts
- Load factor
- 9%, from 895 GWh of reported generation; the median for 244 coal plants in United States of America that report generation is 41%
- Generation trend
- 2,004 GWh in 2013 and 895 GWh in 2019 (−55%)
- Highest and lowest year
- 2014: 2,399 GWh; 2018: 820 GWh
- Share of United States of America coal capacity
- 0.2% of 621,194 MW across 802 plants in this dataset
- Age among peers
- 152 of 745 dated coal plants in United States of America are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Reported generation trend
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Duke Energy Carolinas LLC. All plants by this company →
Local climate & thermal context
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 35.2°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 34% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.
Climate heat-demand index: 36/100 — this site sits in the mid third of the power plants we cover by heating degree-days.
Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.
Site climate & environmental severity
This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby plants
The #210 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
- G.G. Allen Steam Plant · Coal · 1,148.4 MW · North Carolina
- DE Solar 10240 Old Dowd Rd · Solar · 1.9 MW · North Carolina
- Reventure Park · Waste · 3.5 MW · North Carolina
- Gaston Memorial Hospital · Oil · 1.8 MW · North Carolina
- DE Solar 1725 Drywall Dr · Solar · 1 MW · North Carolina
- Mountain Island · Hydro · 60 MW · North Carolina
Location
Coordinates 35.1897, -81.0122 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is G G Allen?
G G Allen is a 1,148.4 MW coal power plant in North Carolina, United States of America, commissioned in 1959.
How much electricity does G G Allen generate?
G G Allen generates about 895 GWh of electricity per year.
Who operates G G Allen?
G G Allen is operated by Duke Energy Carolinas LLC.