Today, the rotors of modern wind turbines are at least 100m in diameter. In a wind farm setup, the diameter of a wind turbine and the site "wind rose" are both factors defining the array layout of turbines. As a consequence, a single wind turbine jeopardizes a surface of 150'000m2 to operate in a wind farm. This phenomenon is called the "wake effect". Furthermore, the terrain topography dictates where the wind resources are best, and project permits for new land are becoming increasingly difficult to obtain in developed economies.
Consequently, modern wind turbines, with their larger rated power and rotor diameter, require wider turbine spacing. As a result, in a wind farm setup, they do not substantially increase the wind electricity harvested from a given land surface.

Bogga Wind Power is developing a wind turbine technology with the mission to increase electricity production from a given wind farm by 50%. As wind farm owners are repowering their aging - high wind speed - sites, new turbines need to significantly improve the electricity yield of wind farm assets, while reducing the overall project costs of repowering.
At Bogga Wind Power, we develop a new generation of wind turbines based on a direct-drive generator system coupled with an advanced rotor for applications in repowering projects and complex terrains. Our megawatt range wind turbines are designed to control costs (turbine, logistics, installation, maintenance) on complex sites. Our mission is to bring to wind farm developers a low-cost wind turbine solution to unlock profitability of sites with difficult access or turbulent wind resources (such as mountainous area or islands).

Our vision is to enable wind farm owners to maximise the electricity produced on their available land.

Improving resource efficiency
(kWh per km2)

The "wake" affecting the electricity generation of a wind farm
© EPFL WIRE laboratory