Buck

Gas power plant in North Carolina, United States of America. Approximate location 35.7133, -80.3767.

GasNorth CarolinaUnited States of AmericaCCGT · HRSGCO₂ measured

Buck is a 698 MW gas power station in North Carolina, United States of America. It is operated by Duke Energy Carolinas LLC. Based on reported annual generation of 4,392 GWh, it can supply roughly 1.3 million homes. It ranks #958 of 10,938 United States of America power plants by installed capacity. Commissioned in 2011, it is around 15 years old — relatively modern. Its annual emissions of 1,570,968 t CO₂/yr (US EPA GHGRP) are equivalent to about 366k cars driven for a year. 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).

698Legacy source-record capacity
1HRSG unit(s)
4,392GWh reported / yr
1,254,942homes powered
1,570,968t CO₂ / yr (US EPA GHGRP)
2011commissioned (~15 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0002720.

Data status

Known data

FacilityBuck WRI
CountryUnited States of America · North Carolina WRI
Coordinates35.7133, -80.3767 WRI
FuelGas WRI
MW installed capacity698 MW WRI source record; scope not independently normalised
OwnerDuke Energy Carolinas LLC WRI
Commissioned2011 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr4,392 GWh/yr WRI
CO₂ emissions1,570,968 t CO₂/yr measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#958 of 10938 calculated
Fuel-specific rank in country#394 of 2165 calculated
Capacity vs country/fuel peers5.76× · 121 MW median · 2165 peers calculated
Homes-powered equivalent1,254,942 calculated from reported generation
Climate15.0°C · HDD 1,804 derived from coordinates
Environmental severityC3 · 35/100 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 fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 698 MW, Buck is well above the median gas plant in United States of America (121 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). 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.

1,570,968 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

366kpassenger cars driven for a year
205khomes' yearly energy use
26 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per US EPA GHGRP (measured for US EPA/EU ETS, modelled for Climate TRACE).

Reported generation trend

2013: 0 GWh20132014: 0 GWh20142015: 0 GWh20152016: 0 GWh20162017: 0 GWh20172018: 0 GWh20182019: 4,392 GWh20194k GWh

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 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 35.7°N — which shapes how much energy it can produce and how its output varies through the year.

15.0°Cannual mean temp
1,804heating degree-days (base 18°C)
727cooling degree-days (base 18°C)
205 melevation

Monthly mean temperature

J: 4 °CJF: 6 °CFM: 10 °CMA: 15 °CAM: 19 °CMJ: 23 °CJJ: 26 °CJA: 25 °CAS: 21 °CSO: 15 °CON: 10 °CND: 6 °CD26 °C

Heating degree-days here run 27% 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: 40/100 — 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)
35/100environmental-severity index
21.5°Cseasonal temperature swing
264 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 #394 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 35.7133, -80.3767 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Buck?

Buck is a 698 MW source-record gas power plant in North Carolina, United States of America, commissioned in 2011.

How much electricity does Buck generate?

Buck generates about 4,392 GWh of electricity per year.

How many homes can Buck power?

Its output is enough to supply roughly 1,254,942 homes.

Who operates Buck?

Buck is operated by Duke Energy Carolinas LLC.

How much CO₂ does Buck emit?

Buck has measured emissions of about 1,570,968 tonnes of CO₂ per year (US EPA GHGRP).

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