Hermsdorf Solar

☀ SolarElectric Utility8 MW capacity

113th largest plant in Wisconsin · 6210th nationally

Hermsdorf Solar is a solar power plant in Wisconsin with a nameplate capacity of 8.0 MW. It generates roughly 15.4k MWh per year — enough to power about 1,467 average U.S. homes.

Its capacity factor of 22% reflects intermittent or peaking operation.

PeakingMid-meritBaseload0%40%80%100%22%
Peaking — intermittent or backup
Capacity8 MWnameplate
Annual Generation15.4k MWhEPA eGRID
Capacity Factor22%of theoretical max
Annual CO₂metric tons

Location

Plant NameHermsdorf Solar
OperatorMadison Gas & Electric Co
CityMadison
CountyDane County
StateWisconsin
ZIP53718
Coordinates43.05960, -89.26090

This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.

Natural GasOilWindSolarBattery Storage

Generators (1)

IDTechnologyFuelCapacityStatusOnline
1Solar PhotovoltaicSolar8.0 MWOperating2022

Grid context

NERC RegionMRO
Balancing AuthorityMidcontinent Independent Transmission System Operator, Inc..

About Solar plants

Utility-scale solar farms convert sunlight directly into electricity using photovoltaic panels. They produce zero direct emissions and have no fuel cost, but generation is variable — peaking at midday and falling to zero at night. Capacity factors typically run 18–28% in good locations.

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