Mayo

Coal power plant in North Carolina, United States of America. Approximate location 36.5278, -78.8917.

CoalNorth CarolinaUnited States of AmericaCO₂ reported

Mayo is a 763 MW coal power station in North Carolina, United States of America. It is operated by Duke Energy Progress - (NC). Based on reported annual generation of 1,526 GWh, it can supply roughly 435,857 homes. It ranks #455 of 9,833 United States of America power plants by installed capacity. Commissioned in 1983, it is around 43 years old — long-established. Its measured emissions of 1,369,520 t CO₂/yr (US EPA GHGRP) are equivalent to about 319,235 cars driven for a year. 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).

763MW installed capacity
1,526GWh reported / yr
435,857homes powered
1,369,520t CO₂ / yr (US EPA GHGRP)
1983commissioned (~43 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0006250.

1,369,520 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

319,235passenger cars driven for a year
178,602homes' yearly energy use
22,825,333tree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions reported to US EPA GHGRP.

Reported generation trend

2013: 2,639 GWh20132014: 2,584 GWh20142015: 2,902 GWh20152016: 2,010 GWh20162017: 1,426 GWh20172018: 1,491 GWh20182019: 1,526 GWh20193k GWh

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

Owner

Operated by Duke Energy Progress - (NC). 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 36.5°N — which shapes how much energy it can produce and how its output varies through the year.

14.3°Cannual mean temp
1,983heating degree-days (base 18°C)
657cooling degree-days (base 18°C)
164 melevation

Monthly mean temperature

J: 3 °CJF: 5 °CFM: 9 °CMA: 14 °CAM: 18 °CMJ: 23 °CJJ: 25 °CJA: 24 °CAS: 21 °CSO: 15 °CON: 10 °CND: 5 °CD25 °C

Heating degree-days here run 19% 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: 43/100 — 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 #127 largest coal power plant of 286 in United States of America by capacity.

United States of America has 286 coal power plants in this dataset, together about 249,149 MW of capacity.

Nearby power plants

Location

Coordinates 36.5278, -78.8917 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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