Great price for cleaning, very friendly guys, but I would advise being on top of watching your SMUD usage after having them clean your panels. According to my SMUD billing, the day they cleaned my panels, the return of energy to SMUD began its drop to 5%, leaving me with an increase of 1,000% in billing. My home began pulling SMUD energy even on sunny days, coincidentally, from the day they cleaned the panels. It cost $400 for someone to check my solar and fix the tripped wires, not to mention the $200 SMUD bill monthly, until I found the problem. I wouldn't post this unless I had the "receipts". *BUYER BEWARE* I should have gone with the more expensive company. They might not have fallen off my roof with the ladder.
Update**turns out they do not turn off your system (not safe either) before cleaning which has led to the many inverters short-circuiting during washing. Waiting for the bill and will consider small claims :-) "Not our problem" was company's response. I would not recommend this business. Accidents happen but their lack of helpfulness or professionalism after their screw-up really is unacceptable and eye-opening. Good luck! read more