The Moore's Law of solar energy

  • metta

    Posts: 44180

    Apr 20, 2011 8:24 PM GMT
    The Moore's Law of solar energy

    Solar cost per watt is dropping on an exponential curve, and will drop below coal by 2020.
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    Apr 20, 2011 8:49 PM GMT
    I hope so. We put a 10 Kw solar system into our new house about 4 years ago - would never do it again. Not because it doesn't work - it works fine - but the payback period, at current electricity prices, is about 50 years.

    There are many, many other things I would do in the name of energy efficiency before putting in another solar electrical system.