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Solar + EV charger integration

Solar + EV charger integration

Charge your EV from your rooftop solar — matched to installers who set up solar-aware 'excess energy' charging.

If you have rooftop solar, the cheapest kilometres you'll ever drive come from charging your EV on your own excess generation instead of exporting it for a small feed-in tariff. Solar-aware chargers use a current sensor (CT clamp) at your meter to detect surplus solar and ramp charging up and down automatically, so you're topping up the car for close to free on sunny days.

How it works

A CT clamp measures your home's net export; the charger only draws power that would otherwise be exported, or blends a set amount of grid power.

Compatible chargers

Several popular Australian chargers support 'green'/solar-only and blended modes — your installer will recommend one that suits your inverter and supply.

Best for

Homes with 6kW+ of solar and daytime charging flexibility (e.g. work-from-home, or a second car parked during the day).

See typical pricing in our cost guide, or get matched to an installer who specialises in this.

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Common questions

Can I charge my EV from solar?

Yes. A solar-aware EV charger uses a CT clamp at your meter to charge from surplus solar automatically. It's the cheapest way to charge if you have rooftop panels and some daytime flexibility.

Do I need a special charger?

You need a charger that supports solar/excess-energy modes. Sparx matches you with installers who fit and configure these correctly for your inverter.

Is it worth it without a battery?

Often yes — your EV effectively becomes the 'battery', soaking up midday solar you'd otherwise export for a low feed-in tariff.