One of the problems with renewables is that they require extensive (aka costly) maintenance before they've actually offset their own construction cost. I read a

One of the problems with renewables is that they require extensive (aka costly) maintenance before they've actually offset their own construction cost. I read an article a few years back where one of the examples was that most wind power plants are only profitable after ~15-20 years but require costly maintenance at the 5-10 year mark and from there onward.