About The Rutland 1200 Terrain Windcharger

The refined aerofoil blade profile is purpose designed for quietness, low windspeed start up and high wind peak aerodynamic performance. Each injection moulded blade is identical and perfectly balanced for smooth operation.

Benefits
• A rotor that remains virtually silent across all windspeeds.
• A very low cut-in windspeed that starts charging at <3m/s (6mph/9kmph)
• Unrivalled power generation of 250W at 10m/s (23mph/37kmph) and peak power of 483W @ 15m/s.
Our efficient, finely profiled Tri-namic blades ensure that the Rutland 1200 converts the maximum energy available in the wind to charge your batteries.

The Rutland 1200T generator is based on Marlec’s pioneering disk type design. Its low resistance AC operation combines the latest powerful rare earth type magnets with a 3-phase winding and low friction bearings. This is housed in a protective aluminium casing and all manufactured by Marlec in the UK.

Benefits
• Cool operation which increases efficiency and reliability.
• The low resistance generator works in harmony with the aerofoil blades and controller to ensure that across the whole range of windspeeds the Rutland 1200T generates the maximum energy possible from the available wind.
• The generator is sealed to withstand weather conditions around the world.
The overall benefit is greater Ampere hours of energy delivered to your battery

The sculpted nose and nacelle efficiently direct the flow of air leading to the built-in tail fin which directs the rotor to the prevailing wind.

We publish our curves based on measured data and use ongoing actual performance data collected and monitored over long periods of time of the turbines running in real wind conditions.

This means the turbines are also subject to side winds, upwinds and sudden changes of wind direction (these are the causes of turbulence) experienced at a user’s typical installation.

Our curves represent a truer reflection of the power output you can expect from your Rutland Windcharger compared with many other turbines.

A power curve is usually given by manufacturers to represent the performance of a wind turbine. Some may be based on theoretical or predicted output and others plot the power achieved under steady state conditions.

Wind tunnel testing and turbines run on vehicle rooftops can provide useful information for a manufacturer but power curves derived in this way need to be understood as running in a clear and unobstructed wind flow so they do not represent what is actually achieved in real wind conditions. Power curves from theoretical analysis cannot be regarded as representing what is actually achieved at all.

A more useful guide of how much power you can expect from your turbine is the Annual Energy Yield. That’s because wind energy is a “cube law,” which means that when the windspeed doubles the power potential is 8 times!

Check the Annual Energy Yield bar chart which uses the Rayleigh distribution to calculate the Ampere hours of battery charging you can expect at given average wind speeds per annum.

As these are averaged across the year you should consider how these figures will ebb and flow across the seasons when you might expect a higher average during the windier seasons. We often recommend the combination of wind and solar charging to smooth out the daily energy yield.