TRW Energy
We have had an indication from our District Planning Authority that these machines come under the regulations of Permitted Agricultural Development, and if the criteria are met will not require planning consent.
2
Kilowatt system
In our opinion, the most interesting wind turbines are these 2kW
machines, which, complete with a big bank of battery storage, are
producing useful power on our nice, windy hilltop.
These machines directly turn a permanent magnet generator on top of a 9 metre mast to feed power into a charger/controller, which, in conjunction with the batteries, provides a controlled voltage to an inverter.
This takes the power it receives and converts it to useful 230 volt, AC current. With care, this can be used to power lights, water pumps, power tools (even our electric kettle!) – in fact anything requiring up to 2kW of power that we care to plug into the regular three-pin sockets.
2 kW turbine = £1,800
Ten 200Ah (Amp-hour) deep cycle battery storage and inverter = £1,500.
(Prices excluding VAT)
Manufacturer's technical
specification:
Rated Output: 2KW
Max Output: 2.5KW
Generator: Permanent magnet generator
Rated output voltage: 120V
Start up wind speed: 2m/s
Rated wind speed: 9m/s
Security wind speed: 16m/s
Number of blade: 3
Material of blade: Glass fibre
Blade Diameter: 3.2m
Speed protection: Automatic Leaned
Rated Rotating Speed: 400r/min
Wind Energy Transforming Rate: 0.42Cp
Pole Diameter: 140mm x 3.5mm steel tube (galvanised)
Tower height: 9m
Work temperature: -40degrees~~+60degrees
Allocated battery: 12V 200Ah, 10pcs
Controller: inverter, controller, charger
True Sine Wave
Another wind power system which offers 'plug in and use' simplicity (230 volt AC from standard 3-pin sockets) is the 1kW turbine, which comes on a 6 metre mast, with a bank of four 200Ah batteries and inverter.
1 kW turbine including batteries and inverter = £1696
(Price excluding VAT)
Manufacturer's technical specification:
Rated Output: 1KW
Max Output: 1.3KW
Generator: Permanent magnet generator
Rated output voltage: 48V
Start up wind speed: 2.5m/s (5.6 mph)
Rated wind speed: 9m/s (20.1 mph)
Security wind speed: 16m/s
Number of blade: 3
Material of blade: Glass fibre reinforced plastic
Blade Diameter: 3.1m
Speed protection: Automatic Leaned
Rated Rotating Speed: 400r/min
Wind Energy Transforming Rate: 0.40Cp
Pole Diameter: 114mm x 3.25mm steel tube (galvanised)
Tower height: 6m
Work temperature: -40degrees~~+60degrees
Allocated battery: 12V 200Ah, 4pcs
Controller: inverter, controller, charger
True Sine Wave
These smaller wind turbines are mainly designed to charge up batteries for use in isolated situations, e.g., for electric fences or to provide power in outbuildings, barns or stables.
500 watt machines charge up at 36 volts and includes an inverter
for 230V AC current.
Price: £646 (batteries
not included)
300 watt machines charge up at 24 volts including inverter for
230V AC current.
Price: £543 (batteries
not included)
200 watt machines charge up a single 12 volt battery, are
actually portable, and could be very usefully employed to keep batteries
charged up in the field for electric fences and other such uses.
Manufacturer's technical
specifications for 500, 300 & 200W turbines
Rated Output: 500W or 300W or 200W respectively
Max Output: 700W, 400W, 280W respectively
Generator: Permanent magnet generator
Rated output voltage: 500W unit = 36V, 300W & 200W units = 24V
Startup wind speed: 2.5 m/s (5.6mph)
Cut-in wind speed: 3 m/s (6.7 mph)
Rated wind speed: 500W unit = 8m/s (17.9mph), 300W unit = 7m/s (15.6mph),
200W unit = 6m/s (13.4mph)
Number of blades: 3
Material of blade: Glass fiber reinforced plastic
Blade Diameter: 500W unit = 2.7m, 300W unit = 2.5m, 200W unit = 2.1m
Speed protection: Automatic Leaned
Rated Rotating Speed: 500W & 300W unit = 400r/min, 200W unit =
450r/min
Wind Energy Transforming Rate: 0.40Cp
Pole Diameter (steel tube): 500W unit = 89x3.25mm, 300W unit = 76x2.5mm,
200W unit = 60x2.5mm
Tower height: 500W & 300W unit = 6m, 200W unit = 4.5m
Work temperature: -40degrees~~+60degrees
Allocated battery: 12V 150Ah (3 for 500W unit, 2 for 300W unit) 1X 12V
100Ah battery for 200W unit
Controller: inverter, controller, charger
True Sine Wave
