Gaston

Hydro power plant in North Carolina, United States of America. Approximate location 36.4991, -77.8115.

HydroNorth CarolinaUnited States of America

Gaston is a 178 MW hydro power station in North Carolina, United States of America. It is operated by Virginia Electric & Power Co. Based on reported annual generation of 368 GWh, it can supply roughly 105,228 homes. It ranks #1370 of 9,833 United States of America power plants by installed capacity. Commissioned in 1963, it is around 63 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 5.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

178MW installed capacity
368GWh reported / yr
105,228homes powered
1963commissioned (~63 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0002756.

Reported generation trend

2013: 301 GWh20132014: 309 GWh20142015: 317 GWh20152016: 410 GWh20162017: 271 GWh20172018: 472 GWh20182019: 368 GWh2019472 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Virginia Electric & Power Co. All plants by this company →

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 36.5°N — which shapes how much energy it can produce and how its output varies through the year.

14.8°Cannual mean temp
1,869heating degree-days (base 18°C)
737cooling degree-days (base 18°C)
70 melevation

Monthly mean temperature

J: 4 °CJF: 5 °CFM: 10 °CMA: 14 °CAM: 19 °CMJ: 23 °CJJ: 26 °CJA: 25 °CAS: 22 °CSO: 15 °CON: 10 °CND: 6 °CD26 °C

Heating degree-days here run 24% 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: 41/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

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.

How it compares & nearby plants

The #102 largest hydro power plant of 1449 in United States of America by capacity.

United States of America has 1449 hydro power plants in this dataset, together about 101,657 MW of capacity.

Nearby power plants

Location

Coordinates 36.4991, -77.8115 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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