Sunday, October 25, 2009

Wind power to the people! http://www.husbandry.co.uk/pages/wind-turbines.html

Wind power to the people!
With the advancement of pioneering technology in the Far East, micro wind turbine systems are now a realistic and affordable proposition for the energy-conscious land-owner or business person.

Avoid the middle-man
The range of cost-effective turbines that we are currently trialing come direct to us as sole UK distributors for one of China’s leading manufacturers of micro wind-generated electricity systems. Come and see a variety of wind power systems installed in a real agricultural situation, and we will be happy to share our knowledge and experience of what these wonderful machines can and cannot do. We're located just off the A38 between Exeter and Plymouth, Devon.

Click the links below to see the following:
• 2 Kilowatt system

• 1 Kilowatt system

• 500/300/200 watt systems

• After-sales, installation and maintenance services


Micro wind turbines
– new technology for the UK

According to the British Wind Energy Association (BWEA), this technology is still quite new in the UK with around just a thousand 'micro' wind turbines installed in the UK during 2006. (Micro wind turbines are classified by the BWEA as having power outputs up to 10kW). However, our manufacturers in China produced 15,000 of these machines during 2006 alone.

The UK's certification process for wind turbine products was only launched in October 2007. In order for the certification process to start fine tuning the desired characteristics of these machines, more people are needed to help pioneer the use of this small scale wind technology here on the windy hills in the West Country and elsewhere.

Planning permission
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
One of these big 2kW machines, which, complete with a big bank of ten batteries for power storage, is 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 + inverter/controller= £1,800
Batteries: x10 @ 200Ah (deep cycle gel) = £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

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1 Kilowatt system
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 + inverter/controller= £1,096
Batteries: x4 @ 200Ah (deep cycle gel) = £600

(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)
Cut-in wind speed: 3 m/s (6.7 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

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500, 300 and 200 watt systems
These smaller wind turbines can provide useful in power in outbuildings, barns or stables, and are also great for charging up batteries for use in isolated situations, e.g., for electric fences. The 200W machines are easily portable.

500 watt turbine - charges at 36 volts and includes an inverter = £646
Batteries: (deep cycle gel) x3 @ 150Ah = £330

300 watt turbine - charges at 24 volts and includes an inverter = £543
Batteries: (deep cycle gel) x2 @ 150Ah = £220

200 watt turbine - charges at 12 volts and includes an inverter = £437
Batteries: (deep cycle gel) x1 @ 100Ah = £75

(Prices excluding VAT)

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 unit = 24V, 200W unit = 12V
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

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After-sales, installation and maintenance services
It is reassuring to know that our manufacturing partners in China have indicated that they will be happy to supply technical support, parts and full after-sales service. What is also reassuring is that because China is a very big country with many isolated regions, these products have been specifically designed with the requirement of easy owner maintenance in mind, and if well maintained the wind turbines have a projected life of 20 years or more.

We, as importers will take our fair share of the responsibility for the functioning and maintenance of the turbines, but as customers and users of these turbines you will also need to take your share of the responsibility for their upkeep and maintenance if their full life span is to be achieved.

Working together with you the customers, the manufacturers and our electronics experts we will endeavour to work out an optional regular maintenance schedule to suit your needs, and at reasonable cost.

Installation
We shall of course provide full installation instructions if you wish to keep costs down by erecting and installing your turbine yourself. The smaller turbines are very easy to set up and use but you may wish to have some help with the larger models.

The cost for us to install your system depends on your specific situation and requirements, so please call us for further information.

Safety issues
If we install your turbine for you, the mains voltage electrical part of the installation will be done with safety certification provided by a professional electrician.


Contact us:

Please contact us if you would like to come and see the working turbines, or if you have any queries concerning these micro wind power systems, or our husbandry project in general.

We look forward to hearing from you!

Email:
info(at)husbandry.co.uk
(please substitute @ symbol)

Tel: 01364 654047
Mobile: 07980 253677

The Husbandry School
Mapleton
30 West Street
Ashburton
Devon TQ13 7DU
UK

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