So How Exactly Does a 11kw Gaia Wind Turbine Outperform Other 10 kw & 20 kw Wind Turbines Available in Northern Ireland & Uk in Realistic Wind Speeds?

So How Does a  11kw Gaia Wind Turbine Outperform Other 10 kw & 20 kw Wind Turbines Available in Northern Ireland & Uk in Realistic Average to Moderate Wind Speeds ?……

Well, that’s a question we get asked a lot !

So what’s available on the market today?… we have offerings from Proven, Westwind, Coemi, Evoco, ReDriven , C F Wind Energy etc, to name a few.  

Lets Explain…..

Firstly, you have to understand how a Wind Turbine actually works….

“In a wind energy system, the turbine rotor serves as the collecting device of the wind turbine. The rotor allows the wind generator to convert moving air masses into the rotating motion necessary to drive its electrical generator”, says’ Mick Sagrillo.

Can we learn anything about blades / rotors ?

Well according to Paul Gipe, the well respected wind guru - ”Nothing says more about a wind turbine than rotor diameter. Nothing.“ , “Since most rotors operate at more or less the same efficiency, the only way to intercept more of the power in a given air mass is to increase the size of the wind generator’s collecting device — the rotor. This makes swept area, or even rotor diameter, a better tool for comparing different models of wind turbines than the generator’s rating.” - Mick Sagrillo

The 11kw Gaia Turbine has a swept area of 133m 

(Other Wind Turbine Swept Areas,   Proven 35 15kw =64m, Westwind 10kw/20kw =31m & 79m, Evoco 10kw = 74m, Coemi 10kw/ 20kw = 51m & 79m, ReDriven 10kw =51m)

“In fact, doubling the rotor diameter yields a fourfold increase in swept area, with a corresponding increase in electrical generation.” – Mick Sagrillo

So how much power does this actually produce ?

Uk based Better Generation  have overlayed several power curves on the graph below, demonstrating that nothing can match a 11kw Gaia Wind Turbine for power output,even when compared against 20kw turbines at wind speeds below 8m/s. (note - the average wind speeds in Northern Ireland is 5.7 m/s) .  

 

To quote Better Generation…  “The front runners in this size group are the Gaia 11kW, with its oversize blades to capture more energy at low wind speeds, and the relatively new machine from Proven Energy, the 15kW. The Proven looks like less of a good bet based on the performance data shown here…”

If we look at the average wind speed in Northern Ireland (5.7 m/s) , the Weibull Wind Speed  Distribution Graph looks like this…

At 5.7 m/s average wind speed, the largest percentage of available wind is actually around the 5 m/s range, the largest overall percentage of available wind is under 8m/s.

Using the power curve chart above, you can now understand how the 11kw Gaia Wind Turbine, makes more power – more off the time, in realistic wind speeds!

 We’ll let  Mick Sagrillo, have the last word regarding generator size….   

“Since most home-sized wind turbines are operating at about the same efficiency, rotor diameter or swept area rather than generator size makes a far better yardstick for comparing the various models offered by different manufacturers. While not a perfect measure by any means, comparing swept areas is far more accurate than relying on a wind turbine’s generator capacity. For example, it can be fairly safely assumed that a wind turbine with a swept area of 200 square feet will produce about twice as much electricity as a model sporting a rotor with a swept area of only 100 square feet.”

History of a Gaia wind Turbine ?

Unlike many recent entrants to the small wind turbine market, Gaia-Wind boasts a 10 year record of reliability and outstanding performance.Gaia-Wind turbines are designed and manufactured in Denmark, the world’s leaders in wind energy. They incorporate more than 20 years of Danish wind industry design experience, including many of the control and safety features found only on larger utility-scale turbines used on wind farms. With over 200 wind turbine installations worldwide and more than 1000 years of combined operational history, a Gaia-Wind  turbine offers reliability and dependable performance together with a customer support service that makes owning your own wind turbine much easier than you thought. Gaia Wind Turbines are the only small wind turbine in the world to have achieved the Danish HB certification standards, complying with rigorous quality, safety and performance requirements.Our modular manufacturing approach allows us to carefully select components for the highest quality, maximum reliability and the lowest levels of maintenance.

To view a pay back analysis for the 11 kw Gaia Wind Turbine – Click Here

Gaia Wind – Rewarding Generation!