Charging Your EV with Solar at Home
By the EV Home Check team · Last updated 15 October 2026 · General information only, not electrical advice
Short answer
Having solar panels doesn't automatically mean your car charges only from solar. To charge from surplus solar, you usually need a charger with a solar mode plus a meter or CT clamp so it can see what your panels are exporting. Even without that, simply charging during the day uses more of your own solar.
Three ways to use solar
1. Daytime charging
Plug in when the sun is up. Any charger works. Some power may still come from the grid if the car draws more than your panels produce.
2. Scheduled charging
Use the charger or car app to start charging in the middle of the day. Simple and cheap, but it doesn't respond to clouds.
3. Surplus-solar (solar-following) charging
The charger adjusts its speed to match spare solar. This needs a compatible charger and measurement hardware, which must be checked against the manufacturer's documentation for your inverter and setup.
Why charging power matters with solar
Many cars need a minimum of about 1.4 kW (single-phase) to start charging. Three-phase solar-following often needs more spare solar to start, unless the charger can switch phases. Smaller systems may only cover part of a charge.
Load management
Dynamic load management lowers charging speed when the rest of the house is busy — useful if you run air con, a pool pump or hot water at the same time.
Home batteries
Most setups shouldn't drain the home battery into the car. Ask your installer how the charger, battery and inverter will be configured so the battery is kept for the evening.
See which chargers include solar modes in our home EV charger comparison.
Frequently asked questions
Do I need a particular inverter brand?
Some chargers integrate best with matching inverters; others use their own CT clamp. Check the manufacturer's compatibility list.
Can I charge at night from solar?
Only via a home battery or by using grid power. Off-peak tariffs can make night charging inexpensive too.
Check your own home
The free calculator uses your car, driving and home to suggest a charger. No email needed to see results. If you then want someone to look at your property, you can request an installation assessment — the EV Home Check team will contact you to talk through next steps.
Related guides
- EV charger installation cost in SydneyWhat you pay for, what changes the price, and how to read a quote.
- Compare home EV chargers in AustraliaSide-by-side specs for the chargers our calculator recommends.
- Single-phase vs three-phase EV chargingHow your power supply and your car's limit decide real charging speed.
- Do I need a switchboard upgrade for an EV charger?What an electrician checks, and questions to ask before agreeing to an upgrade.