I am not the biggest PV expert but I will give you my .02 which agrees with what was just said. Currently solar is generally not cost effective without subsidies. Adding to that are the solar conditions in PA which are not necessarily bad but not as good as a lot of other areas (Arizona...). Further you are talking about a lot of energy there. Even in Arizona it might not be practical. You might want to look into a waste oil burner. Burning either WMO or WVO. You can look at the altfuelfurnace group at Yahoo for more info. They generally modify Beckett oil burners with siphon nozzles to burn waste oil. There are people in that group running these for kilns.

Mike

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra