Home / North America / United States of America / Lanai Solar-Electric Plant

Lanai Solar-Electric Plant

Solar power plant in Hawaii, United States of America. Approximate location 20.7667, -156.9233.

SolarHawaiiUnited States of America

Lanai Solar-Electric Plant is a 1 MW solar power plant in Hawaii, United States of America. It is operated by Lanai Sustainability Research LLC. Based on reported annual generation of 2 GWh, it can supply roughly 428 homes. It ranks #9149 of 9,833 United States of America power plants by installed capacity. Commissioned in 2009, it is around 17 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).

1MW installed capacity
2GWh reported / yr
428homes powered
2009commissioned (~17 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0056667.

Reported generation trend

2013: 2 GWh20132014: 2 GWh20142015: 2 GWh20152016: 2 GWh20162017: 2 GWh20172018: 1 GWh20182019: 2 GWh20192 GWh

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

Owner

Operated by Lanai Sustainability Research LLC.

Local climate & thermal context

This solar plant converts sunlight directly into electricity with photovoltaic panels. It sits in a tropical savanna climate (Köppen As) — Northern Hemisphere, latitude 20.8°N — which shapes how much energy it can produce and how its output varies through the year.

22.5°Cannual mean temp
0heating degree-days (base 18°C)
1,632cooling degree-days (base 18°C)
372 melevation

Monthly mean temperature

J: 20 °CJF: 20 °CFM: 21 °CMA: 22 °CAM: 22 °CMJ: 23 °CJJ: 24 °CJA: 24 °CAS: 24 °CSO: 24 °CON: 23 °CND: 21 °CD24 °C

Heating degree-days here run 100% 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: 13/100 — 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 #2814 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 20.7667, -156.9233 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Built from open public data; no personal information. Operate this site? Request a correction or removal.