Sure, I get good energy production most days, but those cloudy days feel like 50x less? I added battery capacity for a day or two of cloudy weather, but I thin

Sure, I get good energy production most days, but those cloudy days feel like 50x less? I added battery capacity for a day or two of cloudy weather, but I think the only way to add an EV would be to use the grid as the battery system, similar to what you do. For hot water I use a solar heated system, which removed a chunk of resistive load from the PV system.