So even without interest, that's a 7200 cost that will take 180 months to get back (15 years). And this is also assuming there is zero maintenance and you will

So even without interest, that's a 7200 cost that will take 180 months to get back (15 years). And this is also assuming there is zero maintenance and you will never need to replace the panels. I'd rather not be forced into this "investment"