World Power Plants

Elroy Solar is a 1.5 MW solar power plant in the United States, operated by Butter Solar LLC and commissioned in 2019. Ranked #2515 of 3289 solar plants in the United States. Its 1.5 MW capacity accounts for 0.004% of the country's total solar capacity of 40,823 MW. The largest solar plant in the United States is the Sandstone Solar Energy Project at 2,000 MW, making Elroy Solar 1.33 times smaller. Nearby plants within 50 km include Prairie Du Sac (33.4 MW, Hydro), Petenwell (20 MW, Hydro), and Castle Rock (15 MW, Hydro). The facility is located in Wisconsin, approximately 120 km northwest of Madison.

Capacity
1.5 MW
Commissioning Year
2019

7 years old

Owner
Butter Solar LLC
Location
43.7320°, -90.0250°

United States of America, North America

Context & rankings
  • 8,850. largest of 10,098 plants in United States of America
  • #35,792 worldwide by installed capacity
  • #9,428 of 11,042 Solar plants worldwide
Age & fleet comparison

7 years in operation

Solar fleet average: 10.4 years

Operator portfolio

Butter Solar LLC operates 8 plants totalling 22 MW

Regional density

49 plants within 100 km, 2,895 MW combined

Nearest plant: Castle Rock (16 km)

Location

Coordinates:: 43.732000, -90.025000
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Elroy Solar is a solar power plant producing approximately 2 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~41 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Solar
Energy Source
Renewable
Country
United States of America
Continent
North America
Data Source
Global Power Plant Database

United States of AmericaEnergy Profile

10,098
Total Plants
1420.7 GW
Total Capacity
GasCoalNuclearWind
Top Fuels

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