The world needs a new source of energy, an unspillable source.

where can I get free solar panels for my home?

Are there goverment grants for solar panels for residential? I live in New Jersey. USA. Or are there any experimental research companies that will install solar panels for free in return for their research purposes?
I just emailed the US Dept of Energy asking them the same question. Anyone know about the US Dept of Energy? What do they do?