I installed solar panels on my house. About a 8-9 year break even. I've generated between 70-85% of my annual energy consumption every year since I installed them. If I had a battery system, I could be pretty damn close to completely independent of the grid.
EDIT: panels should have a 20-25+ year life, and effectively zero maintenance. Strongly positive after year 10-15.
Maybe in some parts of the world you need to do maintenance, but I don't. Rain keeps them clean. That's it. I've had the panels around 3.5 years now and I have not done a thing in that time.
I installed solar panels on my house. About a 8-9 year break even. I've generated between 70-85% of my annual energy consumption every year since I installed them. If I had a battery system, I could be pretty damn close to completely independent of the grid.
EDIT: panels should have a 20-25+ year life, and effectively zero maintenance. Strongly positive after year 10-15.
Maybe in some parts of the world you need to do maintenance, but I don't. Rain keeps them clean. That's it. I've had the panels around 3.5 years now and I have not done a thing in that time.