If you have, or are planning, an electric car, pairing it with solar is one of the most satisfying ways to use your own generation. Daytime charging on free solar electricity can meaningfully cut running costs, but the details matter.
Why solar and EVs go well together
An EV is a large, flexible load. Charging it during the day, while your panels generate, fills the car with electricity you would otherwise export for a lower rate or buy from the grid. For homes that can charge in daylight, that is often where solar self-consumption climbs the most.
Solar-aware (eco) charging
Some EV chargers sense your spare solar and divert it to the car, ramping up and down as generation changes, so you charge mainly on surplus rather than grid power. This 'eco' or 'solar' mode is a popular pairing, though it works best when the car is home during daylight.
When it makes the most sense
The biggest wins go to households that can plug in during the day, do a lot of their miles locally, and have enough roof for a decent array. If your car is always away in daylight, you will lean more on a smart off-peak tariff, and possibly a battery, than on direct solar charging.
Battery, tariff and the bigger picture
A battery can store daytime solar to charge the car in the evening, and a smart EV tariff can fill the gaps cheaply overnight. Figures are indicative and vary by roof, energy use and tariff. The right mix depends on your driving and usage, which is exactly what a proper assessment weighs up.
Get an honest look at the fit
Sunready's free check considers your roof and usage and can match you with vetted MCS-certified installers who handle solar, batteries and EV-ready setups. No pressure, no inflated promises.
Frequently asked questions
Can I fully charge my EV from solar alone?
Sometimes, for shorter daily mileage on a sunny day, but not always; it depends on your panel size, the season and when the car is home. Most people use solar plus a smart tariff for the rest.
Do I need a special EV charger?
Any home charger works, but a solar-aware charger that diverts surplus solar gives you the most benefit. Your installer can advise on options.
Should I get solar or the charger first?
Either order works, but installing together can be tidier and lets the installer plan solar-aware charging from the start. It depends on your timing and budget.
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