Exactly, and that's why their business model isn't repeatable. They make out on this deal. They get the subsidies on the front end which dramatically lower their capital expenses to make you their customer. Then they've got you on the hook paying them over time. Even if it's less than what you pay Excel, they were getting nothing before you were paying them for your electricity. Then when the panels have degraded and the warranties expire, the point at which everything is "paid for" and it's all "free" for you, they leave the scene. Any repairs or replacements come directly out of your pocket. Even disposal and repair of your roof comes out of your pocket.
If it made economic sense, everyone would be using it. Even the subsidy programs are creating huge deficits beyond those expenses already planned. I can't justify this mess.