are limited in operational performance in the present embodiment however the center of the arrays 102 104 are tied together in a u201c bi polar u201d configuration which enables the overall pv voltage to double before violating nec low voltage limits aside from efficiency gains from operating at a higher voltage a direct conversion e g without a transformer into 480 vac is possible thus eliminating the ratio changing function of the transformer u s application ser no 12 122 950 entitled common mode filter system and method for a solar power inverter which is incorporated herein by reference provides additional details that may be utilized in connection with realizing a bipolar array and for coupling one or more bi polar arrays to a distribution system without a transformer in many embodiments the array 106 provides 1200 vdc maximum differential open load voltages that do not exceed the 600 vdc to ground nec limits while processing power pv array 106 ground referencing may be derived from a star point ground on the ac distribution system through the switching action of the power conversion component 108 e g inverter in general the power conversion component 108 converts power that is applied by the array 106 from one form to another form in some embodiments the power.