The obvious answer is YES, using solar cells to convert light to electricity to charge batteries. The next question is likely to be how do I do that? Here is a simple and quick answer:
- Assumption: you have a 100kWh Li-ion battery pack to fully charge each day from 0% SOC (State of Charge); not all Li-ion chemistries can go down to 0% without damage, so find out what you have first.
- To charge the 100kWh in 8-hrs of sunlight, you will need at least 13kW of solar panels (100/8 = 12.5). I’d go with at least 15–20kW.
- Be sure to get the MPPT type solar charge controller to moderate the incoming solar power and charge your batteries, it’s more efficient than other charge controller types.
- If you want to charge your EV with 100kWh pack at night, then you’ll need a larger battery pack to store the energy from the solar panels during the day, and transfer that energy to your EV at night. I’d recommend a 125kWh solar storage bank of batteries and a DC charger to charge your EV. You will need at least 16kW of solar panel (I would use 20kW).
If you would like more system details, please ask in Comments.