Hi,
Once my solar system and alternator have the house batteries fully changed the solar panels actually send energy to the chassis. I have solenoids in my alternator charging paths.
Solar and alternator play well together for charging.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.