These are some great resources put out by the U.S. Dept of Energy. Everything from an introduction to photovoltaics and basics to Databases and incentives for the separate states.
It is a government page so it’s pretty wordy. At the same time they put together a comprehensive page about solar in the commercial world as well as solar panels on a home.
Here is their link: DOE photovoltaics
- Solar Panels – What Is A Power Purchase Agreement (ideagreenshop.com)
To Save a Huge amount of cost for solar panels, Consider building your own!