1kW - 48V rated wind turbine connected to battery bank

quique
quique Solar Expert Posts: 259 ✭✭
in Solar Beginners Corner #1
If a wind turbine is rated as 1kW & 48V, do I need to connect 8 - 6V batteries in series to create a 48V battery bank? Or can I get away with 2 - 6V - 12V Battery Bank or 4 - 6V - 24V battery bank?

What would be the pros and cons?
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  • victoradjei
    victoradjei Registered Users Posts: 3 ✭
    #2
    Re: 1kW - 48V rated wind turbine connected to battery bank

    It must be connected to a 48V battery bank.
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  • inetdog
    inetdog Solar Expert Posts: 3,123 ✭✭✭✭
    #3
    Re: 1kW - 48V rated wind turbine connected to battery bank
    quique wrote: »
    If a wind turbine is rated as 1kW & 48V, do I need to connect 8 - 6V batteries in series to create a 48V battery bank? Or can I get away with 2 - 6V - 12V Battery Bank or 4 - 6V - 24V battery bank?

    What would be the pros and cons?

    You will always need a charge controller and dump load between the turbine and the battery bank.
    If the controller is PWM type or shunt (diversion) type you must use a 48 volt bank.
    If the controller is an MPPT type with provisions for use with wind input (like the Midnight Classic) then you can use a lower voltage battery bank.

    But if you will seriously be getting 1kW, you are better off with the higher voltage battery bank anyway. At least 24 volt. 48 volt if you will be feeding large loads from it.
    SMA SB 3000, old BP panels.
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