If one were in toofuzzy's situation, having to fork over a lot of money just to get the power lines run a long distance, the payback would come pretty quickly.
For the rest of us who are already on the grid, I'd think that the payback would be > 15 years, especially with the panels more expensive now than when that 15-year figure was the rule of thumb.
And I've never been sure about the 15-year figure. That's about when you're probably going to have to replace your batteries.
Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.