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...