Mount Signal Solar Farm Ii

☀ SolarIPP Non-CHP153 MW capacity

164th largest plant in California · 1858th nationally

Mount Signal Solar Farm Ii is a solar power plant in California with a nameplate capacity of 154 MW. It generates roughly 297.7k MWh per year — enough to power about 28,354 average U.S. homes.

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

PeakingMid-meritBaseload0%40%80%100%22%
Peaking — intermittent or backup
Capacity154 MWnameplate
Annual Generation297.7k MWhEPA eGRID
Capacity Factor22%of theoretical max
Annual CO₂metric tons

Location

Plant NameMount Signal Solar Farm Ii
OperatorMn8 Energy Llc
CityCalexico
CountyImperial County
StateCalifornia
ZIP92231
Coordinates32.66850, -115.62920

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

Natural GasHydroelectricSolarBiomassGeothermalBattery Storage

Generators (1)

IDTechnologyFuelCapacityStatusOnline
IVS2Solar PhotovoltaicSolar154 MWOperating2020

Grid context

NERC RegionWECC
Balancing AuthorityCalifornia Independent System Operator

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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