FAQ - Frequently Asked Questions
Do we charge for surveys?
Unlike many of our competitors we do not charge for site surveys. We recommend speaking to one of our advisors on 01278 793 737 to assess the suitability of your site with a view to having a survey. Please see How to choose a wind turbine for the information we need in order to assess how feasible an installation would be.
What is wind energy?
Wind energy is the latent energy stored in the force of the wind. Rotor blades on a wind turbine can harness this energy and turn it into useful electricity. The stronger the wind coming into contact with the blades of a turbine, the faster the blades can turn and the more electricity can be produced.
How much do wind turbines cost?
The price of wind turbines varies according to the size of each model. These are designed for different wind conditions and uses (homes, businesses, farms, factories and wind farms). Generally speaking, a full installation including the foundation, but excluding cable runs is approximately £169,950 for the Coemi 50kW wind turbine.
How is wind energy used?
Wind energy can be used direct to power your own home or business. Any surplus energy not directly consumed by the owner can be sent to the local grid. Wind energy can also be stored in batteries to be used at a later date.
How do wind turbines generate electricity?
A wind turbine’s rotor blades turn according to the force of the wind pushing them. The blades rotate around a hub, which is connected to a gearbox and generator. The turning blades spin a shaft, which is connected to the generator. This produces the electrical energy.
Who makes wind turbines?
There are a number of companies that produce wind turbines. Coemi has been producing, installing and maintaining high-quality, state-of-the-art wind turbines for its customers for almost 3 years.
What are the advantages of wind energy?
Wind energy is clean, quiet and everlasting. It can reduce, and in many cases, replace our dependency on fossil and nuclear fuels. Adopting wind energy can significantly reduce traditional fuel bills and help cut down on harmful CO2 levels in the atmosphere that contribute to climate change.
Companies that embrace wind energy can boost their image positively by helping the government to cut national carbon dioxide emissions. What is more, owners of wind turbines who send surplus energy to the local grid earn cash back, which helps them recoup the cost of the equipment. The initial cost of a wind turbine can also be written off against tax.
How efficient are wind turbines?
In theory, the most energy a wind turbine can capture from the wind is just under 60%. This is known as the Betz limit.
However because Coemi and Vestas are direct grid asynchronous turbines are 85% efficient because there is no need for an inverter.
Specific wind turbine’s efficiency is highly dependent on a number of factors. They include average wind speed and direction at the desired location.
Ideally the optimum is to find a flat plain without obstructions such as trees, hills or buildings in the line of the prevailing winds.