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EV Home-Charging Solar Offset Calculator

Find how much extra solar you need to cover your EV's home charging, from annual miles, vehicle efficiency, charging losses, sun hours, system losses, and your offset target.

Annual miles driven (mi/yr)

Vehicle energy use (kWh/100mi)

Home charging losses (%)

Peak sun hours (daily average) (h/day)

Solar system losses (%)

Share of charging to offset with solar (%)

Solar Energy

Solar Carbon Offset Calculator

Estimates the annual CO2 emissions avoided by your solar PV system, using your yearly production in kWh and the grid emission factor it displaces. Useful for sustainability reports, REC quantification, and household carbon-footprint dashboards.

Annual Solar Production (kWh)

Grid Emission Factor (kg CO2/kWh)

Key differences

	EV Home-Charging Solar Offset Calculator	Solar Carbon Offset Calculator
Category	Solar Energy	Solar Energy
Inputs required	6	2
Result	Extra solar capacity for EV (kW)	Annual CO2 Reduction (tonnes)
What it does	Find how much extra solar you need to cover your EV's home charging, from annual miles, vehicle efficiency, charging losses, sun hours, system losses, and your offset target.	Estimates the annual CO2 emissions avoided by your solar PV system, using your yearly production in kWh and the grid emission factor it displaces. Useful for sustainability reports, REC quantification, and household carbon-footprint dashboards.