Wind Meters & Data Loggers

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 deliverabout 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.