I have solar panels. I’ve never had the issues you have. My bills have been between $10 and $15 a month since they were installed. Also never had leaks, bli ayin hara. The panels were not installed correctly. If the rails the panels attach to are properly flashed, they should not leak.
It sounds to me like you signed a 20 year PPA (power purchase agreement) where the company that installed your panels owns them and any power they produce. You then pay them for the power rather than paying the utility. You only pay the utility for any excess power you need after what the panels produce. So when you say your bills tripled, are you referring to the bill from the utility or from the company you signed a PPA with?