Sep 232009
 

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The cost wind energy differential is relatively minor these days, since technology and innovation have driven down prices by 90% in the past two decades. A modern residential wind turbine can lower electric bills by 50 to 90% in most parts of the country.

Some homes in the scorching hot south that run 100% off sources wind energy provides have monthly bills of $8 to $15 for nine months of the year, not including the summer months. Homes in the north with year-round modest temperatures will see year-round low energy bills.

alternative wind energy
Another excellent reason to invest in plant wind power is that the cost wind energy charges have decreased substantially in just 20 years and are likely to diminish even more in the years to come.

Wind speed is one factor for cost wind energy figures. For instance, one 51 mega-watt wind farm has wind speeds of 7.15 miles per hour blowing through the generators wind power blades at a cost of 6 cents per kilowatt hour.

At a comparable farm with wind speeds of 9.32 miles per hour, the cost is only 26 cents per kilowatt hour. Also, the size of the local wind farm affects the price. For instance, the average 3 mega-watt farm delivers electricity at 59 cents per kilowatt hour, whereas a 51 mega-watt farm delivers it at just 36 cents per kilowatt hour, at a 40% decrease.

wind power small
A secondary factor for alternative wind energy estimates is the advances in technology. Since the eighties, generators wind power manufacturers have realized that the taller a turbine tower is, the better the output, as wind speeds increase with distance from the ground.

Also, just by increasing the rotor diameter from 10 meters to 50 meters, there was a 55% increase in productivity. A modern day 1.65 mega-watt turbine can generate 120 times the output of the older 25 kilo-watt turbines from the eighties, for example.

Cost wind energy products can range from a couple hundred dollars to up to $22,000, depending on your contractor or set-up. These investments are built to last at least 20 years, manufacturers say.

resources renewable energy
However, the cheapest resources renewable energy comes from local utility programs that have already hooked industrial alternative wind energy turbines into the electric grid. In a study by Wiser and Kahn, it was discovered that private ownership could buy electricity at 6.56 cents per kilo-watt hour, whereas public utility ownership using internal financing could reach as low as 2.88 cents per kilo-watt hour.

As the system is expanded nationally, more and more Americans will have access to renewable energy resources, which will not only save us money in the short-term, but will also save our planet in the long-term.


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 Posted by at 12:14 pm