Patent ID: 8648498

Claim:
A photovoltaic power system comprising; a plurality of photovoltaic modules, a plurality of DC to polyphase AC power converters each comprising a DC input, a polyphase AC output, a primary heat removal means, an environmental protection means and a power conversion means, a polyphase AC combiner box as a separate system component or subassembly comprising a plurality of polyphase input ports, each with an associated and unique input port circuit and each with an associated and unique polyphase circuit breaker or polyphase fuse set, an output port and a means for paralleling the input port circuits at the output port and a polyphase distribution transformer comprising a set of input windings and a set of output windings and wherein each said DC to polyphase AC power converter primary heat removal means is natural convection air cooling and wherein each said DC to polyphase AC power converter environmental protection means is an enclosure which is environmentally sealed and is at least waterproof and dustproof and wherein a portion of said plurality of photovoltaic modules are coupled to said DC input of each of said plurality of DC to polyphase AC power converters and wherein at least one said DC to polyphase AC power converter polyphase AC output is coupled to a unique polyphase combiner box input port and wherein said polyphase combiner box output port is coupled to said set of polyphase distribution transformer input windings and wherein said set of polyphase distribution transformer output windings are coupled to a polyphase electrical grid.