Page last updated on 24th April 2001 |
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An application to build four more turbines on this site has been submitted to Stroud District Council. If the application is successful and the turbines are built, I will photograph them and show them here.
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The Lynch Knoll Wind Turbine (Nympsfield, Gloucestershire)
was constructed in December 1996. Construction took two days while
the planning had taken four years. The following information is taken directly from a piece of
literature that was obtained during an open day. The turbine is owned by Next Generation, and is the Enercon E40. The operation of the turbine is completely automatic and computer controlled. The speed and direction of the wind are monitored by the instruments at the top of the turbine and the information is fed to the turbine controller at the base. The controller then ensures that the turbine is turned to the correct direction, using the yaw motors, and that the turbine blades are pitched to the correct angle to maintain the optimum speed of rotation, using the blade pitch motors. There are numerous fault sensors within the turbine, if a fault occurs the turbine will shut itself down, reset all systems and then restart automatically. If the turbine detects a serious fault and cannot restart it will 'call' the service engineers and provide details of the fault, via computer modem. The turbine has no brake in the conventional sense. Stopping the turbine is achieved via an aerodynamic braking action. The blades rotate or pitch to a position 90 degrees from the operational position and this has the effect of stopping the turbine within seconds. Each blade has its own pitch motor and battery back-up should the mains fail. Any one blade can stop the turbine rotating. |
Turbine facts & figures. Click an image for a bigger version
1398 tonnes of CO2
These gases contribute to Global Warming, Climate change and Acid rain. Plus
several tons of slag and ash, or Nuclear waste, and all pollution resulting from
the mining, transport and processing of fossil fuels or Nuclear fuels.
Since the electricity from this site is used by local households and businesses
there is a further saving of losses incurred in the National Grid when electricity
is moved up and down the country. Wind power is locally produced and used.
The annual output from this site, on average will produce 1,624,000 units of clean electricity.
That is enough to provide the complete annual requirements of 400 local homes.
This is the equivalent to 4 villages the size of Nympsfield, 20% of the town of
Nailsworth and 1% of the entire district of Stroud
The electricity provided by this wind turbine is totally pollution free. This electricity
displaces that from conventional sources and this provides significant reductions in pollution
which are listed below
16 tonnes of SO2
5 tonnes of NOx
All the energy used in the manufacture of this wind turbine and it's transporttation,
site preperation and erection, will be replaced by the energy supplied here in the
first 6 months of operation. The next 20-30 years will see a net benefit of up
to 36 million units of electricity with NO pollution produced at all.
