![]() ![]() You will also need a controller to divert power to another useful source (e.g. Off-grid systems require battery storage and an inverter to convert DC electricity to AC (alternating current - mains electricity). Most small wind turbines generate direct current (DC) electricity. Small-scale wind power is particularly suitable for remote off-grid locations where conventional methods of supply are expensive or impractical. Do you need a standalone or grid-connected system? System installation normally requires permission from the local authority. Issues such as visual impact, noise and conservation issues also have to be considered. You should also satisfy yourself as to the structural suitability of any proposed installation, and ensure that all appropriate planning, electrical and other legal requirements have been complied with. The amount of energy and carbon that micro wind turbines save depends a lot on a several factors, including size, location, wind speed, placement of nearby buildings, and the local landscape.Īnyone considering installing a micro wind turbine should recognise that the savings achievable can only be determined with any certainty by doing a detailed, site-specific assessment. An ideal way of doing this is with an anemometer, which you can buy for around £120. You can also collect primary information by setting up your own monitoring mast to record wind speed. For domestic installations, a good source of information on local wind speeds is the NOABL database, which can be accessed from the British Wind Energy Association. Knowledge of the local wind is critical to designing a wind energy system and predicting output. on boats or in homes), to turbines grouped on wind farms supplying electricity to the grid. Uses range from very small turbines supplying energy for battery charging systems (e.g. Individual turbines vary in size and power output, from a few hundred watts to two or three megawatts (as a guide, a typical domestic system would be 2.5 - 6 kilowatts, depending on the location and size of the home). Wind power is proportional to the wind's speed, so even relatively minor increases in speed result in large changes in potential output. However, this is still largely untapped and only 0.5% of our electricity requirements are currently generated by wind power. In the UK, we have 40% of Europe's total wind energy.
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