Map shows when solar will be cheaper than grid electricity in North American areas

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    Existing grid-supplied electricity is becoming more expensive. Electricity from solar panels is getting cheaper. Here’s an animated map of North America that shows when the rising-grid-cost and falling-solar-cost curves will intersect for different metropolitan areas.

    We used the following assumptions in the construction of this animated map:

    The cost of solar in 2011 is $4.00 per Watt installed.

    Grid electricity price is the average residential retail rate reported by PVWatts for the core city of the metropolitan area.

    The cost of solar decreases by 7% per year.

    The grid electricity price increases by 2% per year.

    According to John Farrell who created the animated map, San Diego will be the first solar grid parity city, in 2013.

    http://energyselfreliantstates.org/content/mapping-solar-grid-parity


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    Map shows when solar will be cheaper than grid electricity in North American areas

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