
EV owners, charging off solar is basically free. Most systems just aren't sized for it.
Ex-solar industry here. Quick numbers: charging at home off the grid runs you $550–600 a year. Off your own solar during the day? Under $100.
an EV adds around 2,000–2,500kWh of demand a year, so a system sized before the car is usually a size too small now. And if you're charging at night with no battery, you're just buying grid power like everyone else.
I built a free calculator that does the numbers for your exact setup bill, postcode, rebates, whether a battery stacks up:
Takes 2 minutes, no sign-up needed to see your results. Happy to answer any questions in the comments.