Quote:
Originally Posted by porsche4life
How big is your roof James? It's saying ours would only be about 90k, and we have a fairly large home.
It shows us at 31k positive over 30 years but I don't know if that takes into account our power companies grid maintenance that makes solar essentially pointless.
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If you are $30K positive in 30 years, for a $90K system, then the initial payback time is ~20 years.
your $90K system is probably 10kW. That should cost no more than $30K to install.