Diverting excess solar power to water heater
I'm about to install 1300 watts of solar. During part of the day I should have excess solar power left over. I plan on using the MidNite Solar Classic 150 MPPT controller which allows the excess pow...
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The dump load is for charging aux batteries or using a wind generator, which has no choice but to generate as it turns. Solar panels are semiconductor devices, they don't need to dump.
That said if you have so much solar, run the heater on 120v. That much power must drive a huge bat bank and hopefully a good size inverter. Maybe swap your 1500 watt element for a 600.
Re driving an element with lower voltage, one tenth input, one tenth output. Current draw will remain equal, and with lower volts you get lower watts. Thermostat shouldnt care about low voltage... Don't bypass the tstat, way too unsafe.
That said if you have so much solar, run the heater on 120v. That much power must drive a huge bat bank and hopefully a good size inverter. Maybe swap your 1500 watt element for a 600.
Re driving an element with lower voltage, one tenth input, one tenth output. Current draw will remain equal, and with lower volts you get lower watts. Thermostat shouldnt care about low voltage... Don't bypass the tstat, way too unsafe.
