What federal and state incentive are available for Solar PV systems?
Pennsylvania has a very attractive Net Metering program and currently offers rebates through the PA Sunshine Program which administers and allocates your rebate prior to the start of the installation. Please visit http://www.portal.state.pa.us/portal/server.pt/community/in_the_news/10475/pa_sunshine_solar_program/553019 for program details.