What size of transformer is needed for small scale generation?

    Most small scale generation will require a dedicated transformer. The size of transformer needed is dependent on the capacity (kW) and type of the generator to be installed. Typically:

    • A pole mounted single phase transformer can be used for generator capacities up to 20kW
    • A pole mounted three phase transformer can be used for generator capacities up to 150kW
    • A ground mounted transformer/substation is necessary for generator capacities over 150kW