This is why you don't lease solar panels. This is common because there's little to no initial outlay but don't do it. Buy them or don't get them at all.
This is why you don't lease anything for your house. For example in The Netherlands you can lease a central heating boiler. I even have a friend that leased a couch once. It's always more expensive and you will have problems with your house when you want or need to sell it (except for the couch of course, that's just stupid...).