La Grange

Hydro power plant in California, United States of America. Approximate location 37.6697, -120.4436.

HydroCaliforniaUnited States of America

La Grange is a 4 MW hydro power plant in California, United States of America. It is operated by Turlock Irrigation District. Based on reported annual generation of 11 GWh, it can supply roughly 3,057 homes. It ranks #6297 of 9,833 United States of America power plants by installed capacity. Commissioned in 1925, it is around 101 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 5.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

4MW installed capacity
11GWh reported / yr
3,057homes powered
1925commissioned (~101 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0000440.

Reported generation trend

2013: 10 GWh20132014: 8 GWh20142015: 8 GWh20152016: 10 GWh20162017: 6 GWh20172018: 8 GWh20182019: 11 GWh201911 GWh

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

Owner

Operated by Turlock Irrigation District. All plants by this company →

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a hot-summer Mediterranean climate (Köppen Csa) — Northern Hemisphere, latitude 37.7°N — which shapes how much energy it can produce and how its output varies through the year.

16.7°Cannual mean temp
1,338heating degree-days (base 18°C)
870cooling degree-days (base 18°C)
130 melevation

Monthly mean temperature

J: 8 °CJF: 10 °CFM: 12 °CMA: 15 °CAM: 19 °CMJ: 23 °CJJ: 26 °CJA: 26 °CAS: 23 °CSO: 18 °CON: 12 °CND: 8 °CD26 °C

Heating degree-days here run 46% 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: 31/100 — 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.

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 #903 largest hydro power plant of 1449 in United States of America by capacity.

United States of America has 1449 hydro power plants in this dataset, together about 101,657 MW of capacity.

Nearby power plants

Location

Coordinates 37.6697, -120.4436 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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