Surfaces and Finishes Tower: Matt galvanised steel grey. Turbine Blades: Matt black polypropylene. Turbine Covers: Matt black polypropylene.
General:
Turbine rotates to the wind direction. Rotor is on the downwind side of the mast. Nominal running speed is 100 to 300 rpm. Low noise due to low rpm, shaped blades, low rpm generator not needing a gearbox. Tower hinges down for Turbine maintenance. {{table:474982}}
PROJECT: Ballacashin Farm House
CLIENT: Mrs. H. Reeve
DRAWING TITLE: PROPOSED 6KW WIND TURBINE
Digital Development TEL / FAX. 01624-851482
DRAWING NUMBER: 570 - 3
Digital Development
The Old School, East Baldwin, Isle of Man. IM4 5EP. Tel/Fax: (01624) 851482 Email: [email protected]
Further Information - Planning application section 16.
Ballacashin Farm House, Abbylands has received planning permission to be refurbished. The proposed wind turbine will add further energy independence to that development.
The proposed turbine is a Proven WT6000, rated at 6Kw electrical output, and is designed for domestic use. It is mounted on a 9m self-supporting tower. Being self-supporting means no guy wires are needed. The rotor diameter is 5.5m. The tower / turbine assembly tilts down for ease of installation / maintenance. The whole assembly is supported on a reinforced concrete base.
From a visibility point of view, the tower is galvanised steel grey. The turbine body and blades are matt black. These colours mean the turbine assembly blends into the background when viewed against a building, a hillside or wooded area from a moderate distance.
The turbine will only be visible from the Abbylands valley road.
The turbine self regulates at a maximum speed of 300rpm (revolutions per minute), which is quite slow. It does not use a gearbox assembly. These two design parameters mean the noise produced by the turbine is low. Noise measurements produced by the manufacturer indicate the turbine does not produce noise levels above the ambient wind noise.
The manufacturer measured noise levels are:
For a 50m.p.h. wind speed:
Background wind noise produced mainly from the wind blowing through small trees 5m away from the point of the measurement - 60dB.
Turbine noise read at a point 2m from the tower base and with the sound meter pointed directly at the turbine rotor - 60dB.
For a 12m.p.h. wind speed (gentle breeze):
Under the same conditions as for the 50mph readings, the recorded noise value was 45dB and was again not distinguishable between background wind noise and turbine noise on the sound meter. A gentle swishing noise is heard when at the base of the turbine but this does not increase the sound meter reading. As a reference, a car passing on a road (car travelling at 40mph, and the sound reading taken 15m from the road) gave readings between 70 and 80dB.
The energy policy of the Isle of Man Government supports power generation from sustainable means as a way of reducing the Islands dependency on imported fossil fuel. This proposal would contribute to the IOM commitments to reduce the effects of global warming. This proposed installation will save an estimated 4960kg of CO2 (the main greenhouse gas emissions) and 12000 kg of CO2 emission of 0.414kg/kWh and a turbine output estimate of 12000 kWh.
Town and Country Planning Act 1999 PLANNING AND BUILDING CONTROL DIRECTORATE
Decision
Initial
Appeal
Amended
Returned
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