Comment Re:Return on investment (Score 0) 541
Doesn't sound to me like an obvious win for solar power
It is an obvious win, because you are failing to compound the savings.
He can invest the savings on electricity each year and substantially increase his ROR.
That is true if you assume that the initial investment can be separated from the return. But in a normal case, the savings each year will need to go directly to pay off the initial investment. If you are trying to find a generic solution for the masses, then this would be a more practical model.
It is a plus from the environmental point of view, but it sounds like the best case scenario is a tie from a financial point of view. In which case he probably would have been better off just investing the $38,000.
I would call it a good step forward for solar power, but not an obvious win.