Combining inverter and EV charger
SolarEdge has now released their SE 7600 HD-Wave inverter with a built-in level 2 EV charger. This made me wonder about combining an inverter and an EV charger on one circuit. Is there anything in the NEC, or from a safety or engineering standpoint that would prohibit the installation of a 30 amp 240v level 2 charger between a solar inverter and the 40 amp breaker in the panel? My reason for wondering is the same as SolarEdge's description in their literature. It would eliminate finding space in the panel for another 40 amp breaker. In my case I currently have a 9kw pv array, and the non EV SolarEdge SE7600H inverter. I am planning on buying an electric car and level 2 charger in the near future. If the car was plugged in at night, the inverter is off and the EV charger would be pulling 30 amps from the 40 amp breaker. If it was plugged in on a sunny day, the EV charger would pull 30 amps from the 32 amp flow from the inverter and theoretically the remaining 2 amps would be back feeding the panel through the 40 amp breaker. On a cloudy day with the car plugged in, maybe the Inverter is providing 15amps to the EV charger, and it would be getting the remaining 15 amps for EV charging from the panel.
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