Tesla Motors Club

“Question: How many solar panels do I need to power my Tesla Roadster?

"Martin: The Tesla Roadster consumes about 200 watt-hours per mile. Suppose you drove 35 miles per day on average (12,775 miles per year). You would need to generate 2.6 MWh/year. By Elon’s math, monocrystalline solar panels generate about 263 kWh/m2/year in the USA. So you would need about 9.7 square meters of solar panels (a square about 10 feet on a side) to completely offset the energy consumed by your Tesla Roadster.” http://www.teslamotors.com/blog2/?p=29

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The calculations appear to be correct actual installed physical ~ 15 x 15 foot array add setback. Parts, for example, would be modules, one source string, one inverter at ~2500 watts, one residential 2 pole 15A breaker on the load side, grounding electrode conductor, equipment grounding conductor, one DC disconnect, …