I'm saddened by your news. If the government there wants to promote renewable energy, which is a good thing, then this company is doing a discredit to that effort. I would attempt to garner as much attention to the problem from the government and public as possible. It sounds to me like you may have had one part fail (or be improperly installed) that caused a cascade of problems, if the inverter wasn't set properly, and allowed the batteries to be drained repeatedly and ruined, the battery company may not want to do much for you as really the problem was not theirs. My experience on non-RE type systems is that each company that makes part of a system typically blames another company involved. If the whole system was warranted by the installer, and the problems appear to be do to an installation error on their part, then by all means do what is necessary to enforce the terms of the contract and to help them do the right thing. Best of luck with that difficult situation. At least the panels are all right though and that's got to be about 2/3rds of the cost of such a system. Rich Hagen