Comment Re:Go Solar, it can make good financial sense. (Score 1) 259
That assumes that the cost of money for the installation is $0. It isn't. The opportunity cost of his install is such that it isn't economical.
Only if you assume the cost of money for his electricity is also $0.
If you assume 6% ROI and a 2% inflation rate, his break even point is at around 12 years.
At somewhere around 12% return he never breaks even.
The above assumes that electricity prices and solar panels both increase in price commensurate with inflation. This is likely not the case.