Below are some links to documents that explain many issues DIY installers will deal with

These are all the John Wiles "code corner" articles. John is a writer for the National Electrical Code in regards to PV

http://www.nmsu.edu/~tdi/Photovoltaics/ ... gree=agree

DIRE is a national database of all solar incentives listed by state. They also have relevant information state programs and laws, good place to check to see if you can get some help on doing a PV system in your area

http://www.dsireusa.org/index.cfm

For Buying solar supplies there are endless online shops ... I have only personally dealt with two:

This Company is in Miami, The are honest and the lowest price on all solar parts I have found anywhere. They can be a bit hard to deal with as they are very busy and with prices the lowest around charge extra for anything but cash/check. They also specialize in solar panel seconds, hands down the best deal in PV and the best way to get the most watts for your dollars, check out the "SUN" brand private labeled Evergreen solar panels

http://www.sunelec.com

And the other firm I have bought solar panels from, very good prices and responds quickly to requests:

http://www.beyondoilsolar.com/solarpanels.htm

This Website is more of a industry information site, but they do keep a small list of supplies that keep updated prices on solar panels:

http://www.ecobusinesslinks.com/solar_panels.htm