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Chapman Ranch Wind I

Wind power plant in Texas, United States of America. Approximate location 27.5925, -97.5008.

WindTexasUnited States of America

Chapman Ranch Wind I is a 236 MW wind power station in Texas, United States of America. It is operated by Chapman Ranch Wind LLC. Based on reported annual generation of 418 GWh, it can supply roughly 119k homes. It ranks #1859 of 10,938 United States of America power plants by installed capacity. Commissioned in 2017, it is around 9 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, wind supplies about 10.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

236Source-backed capacity
418GWh reported / yr
119,342homes powered
2017commissioned (~9 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0059193.

Data status

Known data

FacilityChapman Ranch Wind I WRI
CountryUnited States of America · Texas WRI
Coordinates27.5925, -97.5008 WRI
FuelWind WRI
MW installed capacity236 MW WRI source record; scope not independently normalised
OwnerChapman Ranch Wind LLC WRI
Commissioned2017 WRI
GWh reported / yr418 GWh/yr WRI

Calculated from dataset

Capacity rank in country#1859 of 10938 calculated
Fuel-specific rank in country#82 of 1139 calculated
Capacity vs country/fuel peers3.49× · 68 MW median · 1139 peers calculated
Homes-powered equivalent119,342 calculated from reported generation
Climate22.1°C · HDD 311 derived from coordinates
Environmental severityC5 · 50/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

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: GEM tracker 2026 (location L100000907495); fuel: WRI source-record fuel

In context: how this plant compares

At 236 MW, Chapman Ranch Wind I is well above the median wind plant in United States of America (68 MW). Wind turbines convert moving air into electricity; output is variable and site-dependent, and modern turbines deliver some of the lowest-cost new generation on many grids.

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

Reported generation trend

2017: 160 GWh20172018: 599 GWh20182019: 418 GWh2019599 GWh

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

Owner

Operated by Chapman Ranch Wind LLC.

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 27.6°N — which shapes how much energy it can produce and how its output varies through the year.

22.1°Cannual mean temp
311heating degree-days (base 18°C)
1,813cooling degree-days (base 18°C)
8 melevation

Monthly mean temperature

J: 13 °CJF: 15 °CFM: 19 °CMA: 22 °CAM: 25 °CMJ: 28 °CJJ: 29 °CJA: 29 °CAS: 27 °CSO: 24 °CON: 19 °CND: 15 °CD29 °C

Heating degree-days here run 87% 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: 18/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
50/100environmental-severity index
15.5°Cseasonal temperature swing
17 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 #82 largest wind power plant of 1139 in United States of America by capacity.

United States of America has 1139 wind power plants in this dataset, together about 104,873 MW of capacity.

Nearby power plants

Location

Coordinates 27.5925, -97.5008 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Chapman Ranch Wind I?

Chapman Ranch Wind I is a 236 MW source-record wind power plant in Texas, United States of America, commissioned in 2017.

How much electricity does Chapman Ranch Wind I generate?

Chapman Ranch Wind I generates about 418 GWh of electricity per year.

How many homes can Chapman Ranch Wind I power?

Its output is enough to supply roughly 119,342 homes.

Who operates Chapman Ranch Wind I?

Chapman Ranch Wind I is operated by Chapman Ranch Wind LLC.

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