Why Vertical Axis?


Yes, it’s unusual. Most wind turbines today are Horizontal Axis (HAWT). HAWT’s are simple in concept, and they are well understood by manufacturers.

Plenty of research funding has been spent in the drive to make HAWT’s more efficient – but with diminishing returns nowadays, as they move closer and closer to their ultimate potential.

However, there is no dispute that VAWT’s could represent a major leap forward in wind turbine technology – with the right improvements.

With our WIND•e20® VAWT technology, we have not only addressed the primary concerns of wind turbines, but we have pioneered concepts that will set the standard of future VAWT's.

Here’s why:

  • Availability – or the ability to produce power, all the time. HAWT’s have to turn around and face into the wind, every time it changes. Sounds simple – but they move slowly, and it takes up valuable time, when they could be generating more power. And what if they get it wrong? It’s not always easy to calculate where, and when, to turn. WIND•e20®, on the other hand, is already facing the wind – in every direction! It doesn’t matter how many times the wind changes – WIND•e20® is always ready to go.

  • WIND•e20® looks different. Yes, it’s beautiful to look at, but we’ve noticed something else that’s exciting. Birds recognize WIND•e20® from a distance, and they swoop around it instead of flying into the blades. Wow!

  • Nobody has ever built a wind turbine as large and as strong as this one, that can be installed without any cranes, and without pouring about a hundred tons of CO2-producing concrete. (Yes really!) VAWT technology makes this amazing, environmentally-friendly design possible.

  • WIND•e20®’s curved, carbon-fiber blades are shaped in such a way that they can be made with super-consistent, highly-controlled manufacturing techniques, at a very reasonable cost. HAWT’s still have to rely on skilled workers to lay up their fiberglass blades by hand – or use huge, capital-intensive machines with impossibly long payback times.

  • WIND•e20® has its power components and controls located at ground level, in the base of the tower, and thanks to a patented quick-connect system, they can be quickly removed and replaced. If for any reason the blades need to be inspected, the whole turbine can be hinged down to the ground. But HAWT’s have specialized, tightly-packaged components on the top of a tall mast – where they are difficult and expensive to reach. A small problem can rapidly become a big problem, when it’s located high up in the air.

  • WIND•e20® can fold its blades automatically and flatten them against the rotor, at the first sign of a tornado. Have you ever seen a HAWT do that? This means that WIND•e20® can survive in some of the windiest locations on the planet.

We love the VAWT technology – and we think it’s time for a change.

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