For building the electrical lines of this house on New Earth that I am building I have a voltage of 48 volts from batteries that get electricity from my waterwheels, wind turbines, and solar panels. This goes through an inverter to give me 240 volts of AC electricity. There is a small circuit that goes to the batteries and back to the inverter. There is a second inverter in this circuit that turns AC electricity at 240 volts back to 48 volts of DC electricity. Certain appliances use different amounts of watts and thus amps and volts. Now if the voltage needed for an appliance is somehow greater than 240 volts than how am I going to accomplish raising the voltage for just that 1 appliance and not others that use less than 240 volts? Also to accomplish this varying voltage I was thinking of using resistors but this resistance will add up so that the 240 volts goes through at extremely low amps. So how else could I accomplish lowering the voltage for any particular appliance besides using resistors?