Friday, October 5, 2012

Dollars, Bricks, Watts and Sense

  • A US bill covers roughly 100 square centimeters
  • A standard brick around 115 square centimeters - subway tile the same
  • Two watts of solar at 20% efficiency can fit on a bill, two watts at 18% on a brick
  • One watt will produce 1 to 1.5 kWh of electricty per year
  • The current retail price for Suntech panels is 79 cents/watt on the Sun Electronics site - All in system prices are expected to reach $2/Watt.
  • The current retail price of electricty in the US is...

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