Charging an EV With Solar in Perth: 6 Things to Know
Charging an EV with solar is one of the better combinations available to a Perth household, given how much sun the roof sees. Done well, charging an EV with solar turns daytime generation into kilometres instead of low-value exports. Here are six things to know.
1. Timing is everything
Solar generates during the day; most people plug in at night. The core challenge of charging an EV with solar is lining the two up, which usually means charging in the middle of the day where possible, or using a charger that can schedule around your generation.
2. Smart chargers make it work
A basic charger simply draws power whenever it is plugged in. Charging an EV with solar works far better with a smart charger that can schedule sessions or respond to surplus generation, so the car takes power when the roof is producing rather than from the grid at night.
3. Surplus beats exporting
Feed-in tariffs are generally worth less than what you pay to buy power back. That gap is the real argument for charging an EV with solar: using your own generation for the car is usually better value than exporting it and buying grid power later that evening.
4. Your system size matters
A modest rooftop system will not fill a large battery quickly on its own. Charging an EV with solar often works as a partial contribution rather than the whole charge, topping up during the day and drawing the rest from the grid, ideally in an off-peak window.
5. Working from home helps
If the car is parked at home on weekdays, charging an EV with solar becomes far easier, because the vehicle is there during generating hours. For a car that commutes daily, weekends and any day it stays home are where most of the solar charging realistically happens.
6. Two separate installations
Worth being clear on scope: the rooftop system is installed by a solar specialist, while the charger, its circuit and protection are an electrician’s work. Charging an EV with solar means those two pieces working together, so it helps if whoever installs the charger understands what your system does.
Batteries change the picture
A home battery lets daytime generation be stored and used at night, which removes the timing problem entirely. That is a bigger investment and a separate decision, but it is worth knowing it exists if the daytime scheduling never quite fits how your household actually uses the car.
Check what your supply supports
Solar, a charger and everything else in the house share one supply. An electrician assessing the switchboard and capacity makes sure adding charging does not cause nuisance tripping, and can advise whether load management would help the whole setup run smoothly together.
Track what you are actually saving
Many smart chargers and monitoring apps show how much of a charge came from solar versus the grid. Seeing the split is useful, because it tells you whether shifting a charging session an hour or two would meaningfully improve what you get from the roof.
If the charger faults
Whatever your setup, a charger that trips repeatedly, runs hot or shows scorching is a fault rather than a quirk of solar charging. Treat heat or a burning smell as urgent and call an Emergency Electrician Perth rather than continuing to use it.
Why use a licensed electrician
The charger side of charging an EV with solar is licensed work, dedicated circuit, protection and switchboard capacity all matter. A licensed electrician installs it safely and sets up scheduling. The Energy Rating (Australian Government) has guidance on charging and running costs.
Interested in charging an EV with solar in Perth?
ACS Electrical installs and configures smart home charging, and is an Emergency Electrician Perth if a fault turns up. Explore our EV charger installation service, EV charger load management guide or home vs public EV charging guide. Call 0419 967 838.
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Phone: 0419 967 838
Email: admin@acselec.com.au
Professional electrical services for homes & businesses. We ensure safety & compliance.
Electrician Near Me
Emergency Electrician
Near Me Electrician
Book Your Electrician Now
Get A Free Electrical Quote
Switchboard Upgrades
Local electrician Perth WA
Same day service for homes and businesses call now
Joondalup, Wanneroo, Stirling, Balcatta, Carine, Beldon, Connolly, Edgewater, Currambine, Kingsley, Kinross, Chittering, Lancelin, BIndoon, Baldivis, Melville
Phone: 0419 967 838
Email: admin@acselec.com.au