Could an induction motor/generator be used to charge the Powerwall 2, AC?
I am thinking main application is off grid, makes it cheaper/easier to charge using wind/hydro/biofuel/diesel especially in winter in more northern areas when less solar light.
Induction motor, eg 1800 rpm version sped up to 1860 rpm would generate power, sort of like a grid tie inverter... I see issues in how clean power is and a "what happens when powerwall 2 is fully charged and you have surplus power added"... need good safety to either shut down generator or have diversion to hot water tank load or risk of too much voltage.
(I live in Edmonton, only perhaps 2 hours of equivalent sunlight in winter, and the hookup charges to grid are often greater than the charge for energy used. I am currently thinking Powerwall 2 AC looks better than 48v DC for some applications if you can time much of your usage to match when extra AC power is added, then power stays as AC rather ever being converter to battery and back. Downsides of Powerwall 2 may be too much capacity/cost, and need to spend lots on installation guy)
I am thinking main application is off grid, makes it cheaper/easier to charge using wind/hydro/biofuel/diesel especially in winter in more northern areas when less solar light.
Induction motor, eg 1800 rpm version sped up to 1860 rpm would generate power, sort of like a grid tie inverter... I see issues in how clean power is and a "what happens when powerwall 2 is fully charged and you have surplus power added"... need good safety to either shut down generator or have diversion to hot water tank load or risk of too much voltage.
(I live in Edmonton, only perhaps 2 hours of equivalent sunlight in winter, and the hookup charges to grid are often greater than the charge for energy used. I am currently thinking Powerwall 2 AC looks better than 48v DC for some applications if you can time much of your usage to match when extra AC power is added, then power stays as AC rather ever being converter to battery and back. Downsides of Powerwall 2 may be too much capacity/cost, and need to spend lots on installation guy)