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Wind turbines-Green Energy Device

blue-light / 2014-04-26
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 Wind turbines popularity

Generate electricity at home with small-scale wind turbines. Wind turbines harness the power of the wind and use it to generate electricity. Forty percent of all the wind energy in Europe blows over the UK, making it an ideal country for domestic turbines (known as 'microwind' or 'small-wind' turbines). A typical system in an exposed site could easily generate more power than your lights and electrical appliances use.

Wind turbines operate on a simple principle. The energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity.

So how do wind turbines make electricity? Simply stated, a wind turbine works the opposite of a fan. Instead of using electricity to make wind, like a fan, wind turbines use wind to make electricity. The wind turns the blades, which spin a shaft, which connects to a generator and makes electricity.

Wind turbines use large blades to catch the wind. When the wind blows, the blades are forced round, driving a turbine which generates electricity. The stronger the wind, the more electricity produced.

There are two types of domestic-sized wind turbine:

·  Pole mounted: these are free standing and are erected in a suitably exposed position, often around 5kW to 6kW

·  Building mounted: these are smaller than mast mounted systems and can be installed on the roof of a home where there is a suitable wind resource. Often these are around 1kW to 2kW in size.

Wind is free, so once you've paid for the initial installation your electricity costs will be reduced. 

Wind electricity is green, renewable energy and doesn't release any harmful carbon dioxide or other pollutants.

If your home isn't connected to the national grid you can store excess electricity in batteries and use it when there is no wind.

Maintenance checks are necessary every few years, and will generally cost around £100 to £200 per year depending on turbine size. A well-maintained turbine should last more than 20 years, but you may need to replace the inverter at some stage during this time, at a cost of £1,000 to £2,000 for a large system.

For off-grid systems, batteries will also need replacing, typically every six to ten years. The cost of replacing batteries varies depending on the design and scale of the system. Any back-up generator will also have its own fuel and maintenance costs.

Building-mounted turbines tend to produce less electricity per kW than pole-mounted ones. A well-sited 6kW turbine can generate around 10,000kWh and the equivalent of around 4.8 tonnes of carbon dioxide a year.

Wind energy might seem pricey, but it's still less expensive than solar panels in many cases. Also, tax credits or rebates may be available from your state if you invest in a small wind turbine system. Today's wind turbine systems are significantly more reliable than the ones that were sold thirty years ago. So don't allow a negative experience you've had with wind energy in the past deter you from getting a new wind turbine system. Be sure to consider the life span, efficiency and size of the wind turbine in addition to the upfront cost. Don't forget to check the wind speed before you make a purchase to ensure that a wind turbine is right for your home. You can learn more about wind energy on the www.e-bluelight.com.

Wellsee wind turbines 300W and 400W models can save energy effectively, with low start up wind speed function, they are widely used in worldwide areas. Wellsee is trying hard to research and develop new models, we can believe, in the near future, Wellsee wind turbines will play a more important role.

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