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Roxboro Steam Plant

Gas power plant in North Carolina, United States of America. Approximate location 36.484086, -79.072225.

GasNorth CarolinaUnited States of AmericaCCGT · HRSGGE Vernova: 7HAConstruction

Roxboro Steam Plant is a 2,558.2 MW gas power station in North Carolina, United States of America. It is operated by North Carolina Electric Membership Corp [16%]; Duke Energy Progress LLC [84%]. Based on its capacity (estimated), it can supply roughly 2.9 million homes (estimated). It ranks #88 of 10,938 United States of America power plants by installed capacity. In context, gas supplies about 40.0% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

2,558.2MW installed capacity
2HRSG unit(s)
2,881,264homes powered (est.)
2028Construction

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

Data status

Known data

FacilityRoxboro Steam Plant GEM-GOGPT
CountryUnited States of America · North Carolina GEM-GOGPT
Coordinates36.484086, -79.072225 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity2,558.2 MW Wikidata P2109; installed/nameplate capacity
OwnerNorth Carolina Electric Membership Corp [16%]; Duke Energy Progress LLC [84%] GEM-GOGPT
Commissioned2028 GEM-GOGPT
TechnologyCCGT · GE Vernova: 7HA · HRSG GEM-GOGPT

Calculated from dataset

CO₂ emissions4,033,770 t CO₂·a⁻¹ calculated
Capacity rank in country#88 / 10938 calculated
Fuel-specific rank in country#17 / 2165 calculated
Capacity vs country/fuel peers21.11× · 121.2 MW · n=2165 calculated
Homes-powered equivalent2,881,264 calculated
Climate14.3°C · HDD 1,986 derived from coordinates
Environmental severityC3 · 34/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

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

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: Wikidata P2109; fuel: GEM GOGPT

In context: how this plant compares

At 2,558.2 MW, Roxboro Steam Plant is well above the median gas plant in United States of America (121.2 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG); GE Vernova: 7HA. Its current lifecycle status is “Construction” — so it is not yet, or no longer, generating at full output. Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

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

Capacity vs largest gas plants in United States of America

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Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by North Carolina Electric Membership Corp [16%]; Duke Energy Progress LLC [84%].

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. 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
1,986heating degree-days (base 18°C)
668cooling degree-days (base 18°C)
177 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.

A gas turbine here also runs ~0% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
34/100environmental-severity index
22.2°Cseasonal temperature swing
274 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #17 largest gas power plant of 2165 in United States of America by capacity.

United States of America has 2165 gas power plants in this dataset, together about 789,950 MW of capacity.

Nearby power plants

Location

Coordinates 36.484086, -79.072225 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Roxboro Steam Plant?

Roxboro Steam Plant is a 2,558.2 MW gas power plant in North Carolina, United States of America, Construction 2028.

How many homes can Roxboro Steam Plant power?

Its output is enough to supply roughly 2,881,264 homes (estimated).

Who operates Roxboro Steam Plant?

Roxboro Steam Plant is operated by North Carolina Electric Membership Corp [16%]; Duke Energy Progress LLC [84%].

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