There are solar be asked fridges and freezers that run on DC, and draw it less than 70 watts. I'm looking at a pair of mini splits that draw about 900 watts for each one ton (12,000 BTU) unit. I plan to use two for the whole house.
I will be adding a wind generator too, already found a 1700 watt unit that will actually generate about 600 watts in my local average wind velocity. I will build my own dump resistor for it from ceramic resistors, to save money. They will heat water directly.
I plan to use 24 volts for the entire house, with inverters for equipment that doesn't Come in DC models.
If you run the water into a heat exchanger for a heat pump, you can use the water temperature for a heat sink.
I like the dam, and would like to add hydroelectric in my system. But I'm by a lake with no flowing water close, and they already make a little power from it a few miles east of me.
