Hello, I know there is a similar topic but it has been closed. It is about a wind turbine that generates wild AC from 0 to 240V(open voltage) for a maximum of 1500W. Instead of using a charge controller, a battery bank and an inverter I would like to connect a water heating element directly to the wind turbine and collect the heat into a water tank. My understanding is that if I put a 240V/ high wattage element then the turbine will be stalled and I would collect nothing until strong winds kick in. If I choose a 12V/low wattage element it will burn in strong winds. So I would like to use 20 elements of 12V low wattage that will be gradually connected in series by a device. My question is: is there any device that could do that? Connect the first element for an output of 0-15V, then connect the second element if voltage is between 15-30V, and so on untill in very strong winds it will connect the 20th element?