One of the problems of a too-popular solar incentive program is that demand can outstrip supply. That is, it can run out of money. (Yeah, New Jersey, this means you.) The Arizona Public Service Co. (APS), which runs one of the state's very popular solar rebate programs, has announced it needs more funds for commercial solar rebates. The state requires its utilities to offer evenly distributed funding for commercial and residential solar projects, and while the residential funding for 2009 is far from exhausted, more expensive commercial projects have eaten up that portion of the utility's budget. APS is seeking an additional $143 million for the program. Under it, commercial projects can receive $2.50/watt DC or choose a production-based incentive.