Thursday, October 11, 2012

Many Homeowners Are Purchasing Residential Wind Turbine Kits

By Leigh Bean


Photovoltaic solar energy systems are often sold in conjunction with residential wind turbine kits. The reason is that many parts used in one system are also used in the other making them compatible. Use of the turbines in the United States is currently growing at a rate of 60 percent a year. This industry has been undergoing a significant growth spurt for the last five years. Saving on electricity is a popular pursuit.

An industry specific tome, the Solar Living Source Book explains the systems and the value of their use. These turbines are not rated at any speed. A manufacturing company may say the speed is optimal, but the definition of what optimal is cannot be defined. If the package reads, this system has an output of 10 kilowatts, and names a specific wind speed, the capacity is approximately 20 to 40 percent of that speed. There are math computations that allow the owner to figure the yearly output.

Home-use models are manufactured in vertical and horizontal axis styles. Residential home models are so small compared to commercial ones, that they do not pose a danger to bats or birds. This really makes the model attractive to homeowners who are also animal lovers.

The arms on the horizontal models are anywhere from ten to twenty-four feet in diameter. One part of the mechanism is called the yaw. It works to keep the rotor parallel to the direction the wind is blowing in. This makes conversion efficient. It also maintains the cables that take the electricity to the tower and keeps them problem-free.

Your model should be installed a minimum of 30 feet higher than any structure that could block the wind. The electricity generated that is not immediately needed can be stored for later use. An inverter box converts the generated power to power that can be used in the home. The turbine is often mounted on a tower.

One of the small ones can be mounted on the roof. The roof must, of course, be strong enough to hold it. Many factors work for or against the successful use of the turbine. If obstacles are close, that must be considered. Usual weather conditions, especially wind and turbulence must be evaluated.

The models manufactured for residences are about 7 to 25 feet in diameter. Electricity is generated at a rate of anywhere from 300 to 10,000 watts. If a homeowner is sensitive to excess noise, there are models that are significantly quieter than others.

In 2008, residential models were added to homes in the United States and a total of 17.3 MW in generating capacity was added to the country. That equals a 78 percent increase in the domestic market. The small model has a capacity of 100 kW or less. Since electricity is so expensive to buy from local utility companies, the attraction to turbine generators is increasing. In some states, the homeowner can have the cost subsidized by the government. Over a number of years, the homeowner will recoup the cost.

According to research, the United States is a leader in the small wind industry. Residential wind turbine kits attract the attention of many homeowners. The savings are foremost. However, helping to reduce the carbon footprint left on the earth is a concern of many citizens as well.




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