85 B

Wind power plant in California, United States of America. Approximate location 35.1011, -118.3372.

WindCaliforniaUnited States of America

85 B is a 21 MW wind power plant in California, United States of America. It is operated by Tehachapi Wind Wall LLC. Based on reported annual generation of 16 GWh, it can supply roughly 4.6k homes. It ranks #4655 of 10,938 United States of America power plants by installed capacity. Commissioned in 1985, it is around 41 years old — long-established. 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).

21Legacy source-record capacity
16GWh reported / yr
4,628homes powered
1985commissioned (~41 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0052163.

Data status

Known data

Facility85 B WRI
CountryUnited States of America · California WRI
Coordinates35.1011, -118.3372 WRI
FuelWind WRI
MW installed capacity21 MW WRI source record; scope not independently normalised
OwnerTehachapi Wind Wall LLC WRI
Commissioned1985 WRI
GWh reported / yr16 GWh/yr WRI

Calculated from dataset

Capacity rank in country#4655 of 10938 calculated
Fuel-specific rank in country#769 of 1139 calculated
Capacity vs country/fuel peers0.31× · 68 MW median · 1139 peers calculated
Homes-powered equivalent4,628 calculated from reported generation
Climate15.1°C · HDD 1,741 derived from coordinates
Environmental severityC1 · 39/100 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 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 21 MW, 85 B is below 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

2013: 26 GWh20132014: 22 GWh20142015: 17 GWh20152016: 21 GWh20162017: 16 GWh20172018: 19 GWh20182019: 16 GWh201926 GWh

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

Owner

Operated by Tehachapi Wind Wall LLC.

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 35.1°N — which shapes how much energy it can produce and how its output varies through the year.

15.1°Cannual mean temp
1,741heating degree-days (base 18°C)
683cooling degree-days (base 18°C)
1,156 melevation

Monthly mean temperature

J: 6 °CJF: 8 °CFM: 9 °CMA: 12 °CAM: 17 °CMJ: 22 °CJJ: 25 °CJA: 25 °CAS: 22 °CSO: 17 °CON: 10 °CND: 7 °CD25 °C

Heating degree-days here run 29% 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: 38/100 — this site sits in the mid 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 a benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion the leading environmental stress.

C1ISO 9223 corrosivity (indicative)
39/100environmental-severity index
19.1°Cseasonal temperature swing
101 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 #769 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 35.1011, -118.3372 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is 85 B?

85 B is a 21 MW source-record wind power plant in California, United States of America, commissioned in 1985.

How much electricity does 85 B generate?

85 B generates about 16 GWh of electricity per year.

How many homes can 85 B power?

Its output is enough to supply roughly 4,628 homes.

Who operates 85 B?

85 B is operated by Tehachapi Wind Wall LLC.

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