Johnson County

Gas power plant in Texas, United States of America. Approximate location 32.3994, -97.4078.

GasTexasUnited States of AmericaCO₂ reported

Johnson County is a 283 MW gas power station in Texas, United States of America. It is operated by Brazos Electric Power Coop Inc. Based on reported annual generation of 791 GWh, it can supply roughly 225,885 homes. It ranks #1008 of 9,833 United States of America power plants by installed capacity. Commissioned in 1996, it is around 30 years old — long-established. Its measured emissions of 481,331 t CO₂/yr (US EPA GHGRP) are equivalent to about 112,198 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).

283MW installed capacity
791GWh reported / yr
225,885homes powered
481,331t CO₂ / yr (US EPA GHGRP)
1996commissioned (~30 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0054817.

481,331 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

112,198passenger cars driven for a year
62,771homes' yearly energy use
8,022,183tree seedlings grown 10 years to absorb it

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

Reported generation trend

2013: 773 GWh20132014: 732 GWh20142015: 602 GWh20152016: 424 GWh20162017: 0 GWh20172018: 448 GWh20182019: 791 GWh2019791 GWh

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

Owner

Operated by Brazos Electric Power Coop Inc. 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 32.4°N — which shapes how much energy it can produce and how its output varies through the year.

18.5°Cannual mean temp
1,132heating degree-days (base 18°C)
1,322cooling degree-days (base 18°C)
231 melevation

Monthly mean temperature

J: 7 °CJF: 10 °CFM: 14 °CMA: 18 °CAM: 22 °CMJ: 26 °CJJ: 29 °CJA: 29 °CAS: 25 °CSO: 19 °CON: 13 °CND: 9 °CD29 °C

Heating degree-days here run 54% 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: 28/100 — this site sits in the bottom 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.

A gas turbine here also runs ~2% 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.

How it compares & nearby plants

The #603 largest gas power plant of 1818 in United States of America by capacity.

United States of America has 1818 gas power plants in this dataset, together about 546,436 MW of capacity.

Nearby power plants

Location

Coordinates 32.3994, -97.4078 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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