I have been collecting solar and alternate energy references and resources for the past 30 years. It started when I was in high school and got interested in other ways to create heat and light (mostly for during typhoons) when we lived on Guam.
I've recently discovered an interesting resource that you can see when you click here. Lots of ideas for ways you can build your own alternate energy sources for your home or small business.
And here are two more:
Solar Power Design Manual--Teach Yourself All About Solar Power. Comprehensive Manual by Genuine Expert. Spreadsheet Included.
Renewable Energy Solutions--The Manual--The folks who put this together have been presented on TV, Google, and the New York Times as a source of Alternate Energy Information. Good stuff for those in need of Alternate Energy!