I am a business owner that owns a lot of real estate. By lots I mean over 1,000,000 square feet. Most of the buildings are 10,000 - 30,000 sft commercial space. I have a consultant helping my company with some of the grant programs out there. For which we will probably apply. I was deeply dismayed though by the systems. 50 KW System $350,000 Installed $3,589 average electrical generation (at $.06 KW) per year. That's basically a 1% return on investment. That's TERRIBLE. The commercial systems work because you get a subsidy from the utility, the federal gov't, and maybe the state gov't. No subsidies, no solar.