Formula and meaning
Annual vehicle energy demand is compared with available PV surplus to determine the remaining grid energy.
E₍charge₎ = km · consumption / 100 / η · PV share = min(PV surplus, E₍charge₎)
E-mobility · photovoltaics
PV surplus charging calculator
Estimate PV share, grid energy, and annual charging cost when charging with solar surplus.
EVAC/DC
02
Results
E = P · t
Set the inputs and run the calculation.
Context
At 15,000 km/year, 18 kWh/100 km, 2,000 kWh PV surplus, and €0.35/kWh, about 67% of charging demand is covered.
PV surplus is treated as an annual energy budget. Hourly matching, storage, seasonal yield, and smart charging control are not simulated.
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