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"DO I HAVE A GOOD SITE FOR
WIND POWER?"
Wind powered battery charging systems can be
cost-effective if the average wind speed is nine miles per hour (mph)
or more at the location of the wind generator. If you are using wind
in combination with photovoltaic power, it may be cost effective if
good wind is available only during part of the year. When the wind
speed doubles, the power delivered is eight times as great . Most wind
generators are designed to deliver maximum power at a wind speed of 30
mph. At 15 mph, they will deliver about 1/8 their rated power. A wind
generator should be mounted at least 20 feet higher than any
obstruction within 300 feet to avoid turbulence. The power output of a
wind generator will decrease roughly 3% for every 1000 feet of
elevation. |