Solar Panel Break Even Point SolarDave: What is the payback time for a solar panel system (4KW) in Colorado? Sam Weaver: 4kWatts is about average and I will generally say something like 14 to 18 years. And it depends on all types of factors like exactly how you roof is tilted but to take the guess work out of that use this financial analysis and plug in the specifics of the customer and the shading that have and I will present a payoff graph and that payoff graph will show for that customer in that …

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  1. #1 by enyawix at August 28th, 2008

    14 to 18 years! Is that with or with out inflation? Any numbers for wind etc..

  2. #2 by jeevespreston at June 15th, 2009

    14 to 18 years, no offense but that seems long? Is that for the panels that are commercially available? What about panels that are DIY soldered and assembled at home? What if they are installed by the home-owner instead of a contractor?

  3. #3 by twa600 at November 8th, 2009

    It is more likely that one will never come to a break even point.

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