Most small-scale wind turbines generate direct current (DC) electricity. Systems that are not connected to the national grid require battery storage and an inverter to convert DC electricity to AC (alternating current - mains electricity).
Small-scale wind generators can be connected to the national grid so that any unused or excess electricity may be exported to the national grid and sold to the local electricity supply company.
A special inverter and controller are required to convert DC electricity to AC at a quality and standard acceptable to the national grid. No battery storage is required in this application.
An example of a small-scale wind generator is the Windsave WS1200 which is a wall-mounted micro-wind turbine system designed to supplement the supply drawn from the national grid. Wind Save's main competitive advantage comes from the "Plug 'n' Save" technology which allows electricity generated to be connected directly into the ring main via a fused spur outlet to supplement overall consumption, instead of being stored in batteries or be used via the national grid. The selling price of about £1,900 includes installation by Windsave's accredited installers.
Proven Energy (www.provenenergy.co.uk) claim to be the world's leading supplier of small-scale wind turbines and say that their high performance turbine is the result of thirty years of inspiration, innovation and development.
With over 1500 turbines installed worldwide, Proven Energy claim unrivalled experience and global renown for robust reliable turbine performance.
Proven Energy wind turbines are available in three standard systems, which manage how the electricity that they produce is used.
1) Grid Connect
The electricity produced is fed directly into your fuse box or distribution board, providing power to your premises. Any surplus electricity produced can be exported to the grid, dependent upon local regulations and potentially sold to an electricity provider. Convenience and the opportunity to sell excess electricity have made this the most popular system.
2) Battery Charging
Energy produced by the turbine is stored in a large battery, to provide a power supply. This is most beneficial in remote locations which are not connected to the grid, or which rely on a diesel / oil generator. Installing a turbine can reduce fuel consumption by up to 95% and the payback time can be very short.
3) Direct Heating
Energy produced by the turbine is directed to hot water tanks, storage heaters or under-floor heating, rather than providing electricity to feed into your power supply.
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