Gridly
Solar km Calculator
Enter your solar system size and weekly driving to see how many km per year you can drive for free using surplus solar generation.
Most EVs: 13-18 kWh/100km
Your Results
Free km per year
-
powered by your solar
Annual solar saving ($)
-
vs charging from grid
% of charging from solar
-
with solar divert charger
Total annual km
-
Annual kWh needed
-
Effective cost per km (¢)
-
Calculator notes
Requires a solar divert charger (Zappi, Fronius Wattpilot, Evnex E2 Plus, or Wallbox Pulsar Plus with Eco-Smart) and a CT clamp fitted during installation. Without solar divert, your charger draws from the grid regardless of generation.