By the Numbers
Mars Hill power Saturday, July 5, 2008 While a wind turbine - a big one like those at the Mars Hill Wind Farm - will produce more than 1,000 kilowatt-hours per year for each square meter of wind disk, a photovoltaic array, for about the same output, will need to be 10 times this area. |
Offshore wind Saturday, June 28, 2008 A 65-mile direct-current power line, the Neptune Project, now connects Long Island with the power grid in Pennsylvania. |
Wind turbines Saturday, June 21, 2008 In the very best wind locations, a modern wind turbine will generate a bit more than 1,000 kilowatt-hours each year for each square meter (10 square feet) of wind disc. |
Biomass facts Saturday, June 14, 2008 According to the Energy Information Administration, a nonpolitical arm of the U.S. Department of Energy, the use of biomass in this country will increase from the present 2.5 percent of the total to 3.1 percent in the year 2030. |