1. Residential Energy Credits, Internal Revenue Service Form 5695;US Department of the Treasury,2012
2. Residential Solar Energy Credit, Publication 543;Arizona Department of Revenue,2009
3. PNM Solar Energy Customer Program;Public Service Company of New Mexico (PNM),2012
4. City of Phoenix, Energize Phoenix Residential Rebate Match Program,2012
5. U.S. Solar Surges 44% in Third Quarter Driven by Rooftops;Gossens,2012