Independent powered homes use standard 120 volt AC wiring just like any city home. But with independent power, you will need a few extra wires. Some will bring solar, wind, or hydro generated power from outside to the battery area. Extra equipment in the house, like a battery meter and generator start/stop switch will need wiring. And to save power, you will have more than the usual number of wall switches to control many local task lights. Extra wall switches also control AC outlets so any appliances that steal your power even when they are turned off can be cut off dead by the switch. Perhaps you will need a few low voltage outlets for some energy saving DC appliances like phone message machine, fans, special refrigerator, or pump.
Some applications allow for sharing of power or even returning it to the grid for a refund, but all of these require significant integration which is most easily achieved during original construction.
Probably the most convenient way to add solar power to an existing home is to paralell certain desired circuits and switch them manually.
Sorry but you're still gonna need wire.
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"Do not worry about your difficulties in Mathematics. I can assure you mine are still greater". - Albert Einstein
It's not possible, so just follow British Standard 7671 and be done with it.
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