Charge your car on sunshine.
See what charging your EV costs each year, and how much you save running it on solar instead of the grid.
Charging from your own solar costs only what you'd have earned exporting it (the feed-in rate) — far less than buying from the grid.
Estimate only. Assumes 16 kWh / 100 km. Default rates verified 2026-06-22; enter your own for accuracy.
Frequently asked questions
How much does it cost to charge an EV at home?
Most electric cars use about 16 kWh per 100 km. On a grid rate of 30 c/kWh that's roughly $4.80 per 100 km; charging from your own solar can drop that to well under a dollar.
How much can solar save on EV charging?
Charging from solar you'd otherwise export costs only the feed-in rate (a few cents), versus 25–40 c/kWh from the grid. For an average driver that's often $700–$1,500 saved a year.
Do I need a special EV charger?
A 7 kW single-phase charger suits most homes and charges overnight or during a sunny day. Three-phase homes can add a 22 kW charger for faster top-ups. Either pairs well with solar and a battery.
Are these numbers exact?
They're an estimate based on 16 kWh/100 km and the rates you enter. Your real cost depends on your car's efficiency, your tariff and how much you charge from solar versus the grid.
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