You might want to research whether there's a state Solar Center that will assist you with information on this topic.
- PV systems are usually designed based on the specific requirements of your home.
- Calculations need to be done on the amount of electricity that will be generated with a PV system connected to the grid.
You may also want to research the type of PV certification (such as NABCEP) that the installation company has and if they offer guidance on rebates.
For more information:
Check the Pennsylvania section of theDatabase of State Incentives for Renewables and Efficiency (DSIRE) here.
ReadChristine and Robert Boles's Q&A "How much will it cost to install solar panels on my 2,000-sq.-ft. home in San Francisco?"