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Axium Modesto Solar

Solar power plant in California, United States of America. Approximate location 37.7342, -120.9956.

SolarCaliforniaUnited States of America

Axium Modesto Solar is a 25 MW solar power plant in California, United States of America. It is operated by Axium US Solar Holdings LLC. Based on reported annual generation of 61 GWh, it can supply roughly 17,485 homes. It ranks #3448 of 9,833 United States of America power plants by installed capacity. Commissioned in 2013, it is around 13 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, solar supplies about 8.6% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

25MW installed capacity
61GWh reported / yr
17,485homes powered
2013commissioned (~13 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0058039.

Reported generation trend

2013: 67 GWh20132014: 65 GWh20142015: 64 GWh20152016: 64 GWh20162017: 62 GWh20172018: 64 GWh20182019: 61 GWh201967 GWh

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

Owner

Operated by Axium US Solar Holdings LLC. All plants by this company →

Local climate & thermal context

This solar plant converts sunlight directly into electricity with photovoltaic panels. 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.

16.5°Cannual mean temp
1,269heating degree-days (base 18°C)
743cooling degree-days (base 18°C)
30 melevation

Monthly mean temperature

J: 8 °CJF: 11 °CFM: 13 °CMA: 16 °CAM: 20 °CMJ: 23 °CJJ: 25 °CJA: 24 °CAS: 22 °CSO: 18 °CON: 12 °CND: 7 °CD25 °C

Heating degree-days here run 48% 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: 30/100 — 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.

Solar PV loses ~0.35%/°C above 25°C cell temperature — roughly 0.0% at warm-season highs here (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 #278 largest solar power plant of 3283 in United States of America by capacity.

United States of America has 3283 solar power plants in this dataset, together about 37,970 MW of capacity.

Nearby power plants

Location

Coordinates 37.7342, -120.9956 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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