4 man boat £21
£9 tent
6v 100AH £28ea
Free Electricity!
New wind turbines with a maximum output of 800 watts complete with tower and guy ropes
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RUTLAND 913 WIND GENERATOR
The Rutland 913 is designed for marine use on board coastal and ocean going yachts usually over 10m in length. This unit will generate enough power to serve both domestic and engine batteries on board and the RWS200 Controller is available for dual battery charging. |
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Technical Data Low wind speed start up of just 5 knots Shipping Specification (mm) |
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SR200 Regulator - Shunt type regulator prevents battery overcharge
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RUTLAND 503 WIND GENERATOR
A completely unique mini windcharger designed with the weekend yachtsman in mind. The Rutland 503 is ideal for trickle charging batteries on board vessels less that 10m in length with battery banks of up to 100Ah. This latest model follows the success of its predecessor the Rutland 500 with a number of enhancements including performance and styling. |
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SR60 Shunt Regulator for Rutland 503 Wind Charger |
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Rutland Furlmatic 1803 WIND GENERATOR The FM1803 is another product technological advancement engineered by Marlec. It follows the great success achieved with the original Rutland Furlmatic FM1800 which has established a proven track record of reliability in a variety of applications from the cold, harsh environment of Antarctica to the hot, dusty climate of the Sahara Desert. The Furlmatic 1803 is Marlec's largest power unit incorporating a "furling" tail system designed to orient the turbine at 90degrees to the prevailing wind in wind speeds above 35mph (15m/s). This allows the turbine to slow down, continuing to produce power whilst reducing wear on the unit. Use on land based applications where windspeeds are frequently high and sustained over long periods. |
Supplied with complete control electronics
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Wind turbine performance specifications are not created equal......
That's because to date there are no firm international standards for how small wind turbines are "rated." Most grid connect wind turbines are given a power specification at 10m/s (meters per second), the equivalent of 22mph or 19Knots. They do of course produce more power in stronger wind speeds.
Bull chooses to rate our wind turbines at this same standard of 10m/s as we believe that as the industry matures a reasonable level such as this one will be established. Manufacturers rating points vary and consequently it is necessary to compare output graphs across a wide band of windspeeds rather than accept individual rating figures for wind turbines.
So how much power will a windcharger deliver?
The real measure of performance of wind turbines is "accumulated ampere hours" into a battery over a given period of time although this is a difficult measure for manufacturers to express since the users site for the windcharger will affect overall performance. Output graphs are usually an indication of instantaneous peak power at given wind speeds but in real conditions the wind is rarely constant, usually gusting up to 3 or 4 times the average.
Wind turbines can theoretically deliver 4 times the power in twice a given wind speed so calculating total power generated using average wind speeds is misleading.
As an example we will take 10 Knots as the average wind speed using a Rutland 913 Windcharger:
the Rutland 913 delivers 1.5A @ 10knots, then we could estimate a daily yield of 24hrs x 1.5A = 36Ampere hours. However at the extreme the wind may blow at 20 Knots for 12 hours and be calm for 12hours, showing 10Knots as the average so the potential power generated can be quite different, ie at 20 knots the Rutland 913 delivers 7A, therefore 12hrs x 7A = 84 Ampere hours.
The actual accumulated ampere hours in reality is somewhere in the middle demonstrating that average figures can be misleading. This also reinforces the benefit of wind generators that run freely in low winds maximising the available power of the more regular gentle breezes as well as the peaky gusts.
Consider the "fill factor"
The wind never blows constantly from one direction or at a steady wind speed, it blows in gusts. Most micro wind turbines are fitted with a free yawing mechanism and tail fin to direct the turbine into the wind. Where they differ is in the type of generator and aerofoil blades used which greatly affect their ability to adapt to the changing wind conditions. An unrivalled feature of all the Rutland designs is low wind speed performance. Our high inertia generators maintain momentum and speed between gusts of wind, continuing to generate power where more conventional designs slow down losing power and requiring a strong gust of wind to restart them. This means that overall a Rutland will generate more power into a battery bank in a day when compared to an equally sized or rated turbine and even in cases of generators of a higher "rated" capacity and turbine diameter! See the independent tests on our news pages and compare the turbine diameters to see that you don't always need a larger unit to generate the same or more power.
To sum it up:
We keep it simple so it's reliable
We use durable materials so it lasts
We innovate to deliver the best efficiency possible
Low wind speed start up of just 5 knots
Generates 90w @ 19 knots, 24w @ 10 knots
Delivers up to 250w
One way only fit fine profile efficient aerofoil blades
Three phase Rutland "unique" generator design
Automatic thermostat protection in prolonged gales
Modern, durable materials for reliability on the high seas
No radiated interference - complies with EEC directive 89/336/EEC
380 watts of electricity from our air module!
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just £658.90
380 watts of power for less than £700, only 2 moving parts, easy installation on 2" pipe
12vdc output, 300 watts at 28mph, 380 at 35mph, 100 at 20mph.
AIR1 is a revolutionary modular wind turbine Now wind power can be captured as simply as solar power: Priced about the same as a photovoltaic module, AIR produces more than five times the peak power of a panels rated output
1.14 metre diameter (45") blade, min start up speed 7mph.
Maintenance-free performance, easy installation and high output make AIR ideal for all applications.
The AIR wind module is engineered to be mounted on a rooftop no tower required. AIR can be used in combination with photovoltaic modules and/or multiple AIR modules can be installed to meet your power needs. Five wind modules will provide a 1,5 kilowatt rating [2.0+ kilowatt peak)
AIR applications
• Remote homes & cabins• Battery charging
• Water pumping• Science & education
• Recreational vehicles• Telecommunications
Features Unprecedented 3 YEAR WARRANTY
•Simple rooftop installation: no tower necessary
•Variable pitch aerolastic carbon matrix blades
•Aircraft quality aluminium alloy castings
•Exclusive Brushless neodymium cubic curve alternator
•Sophisticated internal battery charge regulator
•Safety protection electronics controls voltage and rotor RPM
•Maintenance-free, Only two moving parts
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BUILD YOUR OWN WIND FARM FROM SCRAP!
A comprehensive guide to building wind driven electricity generators using parts
from scrap yards. Covers everything from sizing the propeller to actually making it
from scrap materials! For anybody interested in this fascinating
area of energy production it will make interesting reading.
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