Searsburg
Power output 11 big machines Subsidized |
At a cost of $11 million, of which
64% came from Green Mountain Power and 36% from various subsidies, eleven
windmills have been built near Searsburg, Vermont.
The windmills produced 3.4 million kilowatt-hours of electricity in the first quarter of 1998. (Around-the-clock average power = about 140 kW for each unit.) Each windmill has a three-blade rotor of 132-foot (40-meter) diameter, which turns at a constant 29 revolutions per minute. The power output of each unit is 550 kW when the wind speed is between 29 and 65 miles per hour (13 to 29 m/s). (We may deduce that the availability
factor was the true average power divided by the on-line power, namely
140/550 = 25%. In 1995, Vermont used
5.2 The windmill data given herein came
from |

The Energy Advocate