Characteristics of Wind Lens Turbine (WLT) and Multi-Rotor System (MRS)
High Efficiency WLT： The aerodynamics of edged diffuser wind turbines (called “Wind Lens Turbine”, WLT) have been improved. The flow through the diffuser and the flow behind the shield create vortices behind the structure. As a result, a low pressure zone is created behind the turbine by the shedding of the vortices. Air is thus drawn into the turbine at a higher rate and accelerated more than in a conventional wind turbine (without diffuser). Due to this effect, WLTs show a 2 to 3 times power increase compared to conventional turbines.
The noise of the wind turbine is significantly lower.
Vortices generated from the blade tips are significantly suppressed through interference with the boundary layer within the diffuser shroud.
Problems caused by bird strikes are minimized.
Birds can see the lens structure (edged diffuser) and do not enter the blade rotation area.
Elegant Design
The wind lens turbine is quiet, safe and has a beauty that blends into the surrounding landscape.
Expected Electricity (3kW Unit Turbine and 15kW Multi-Lens Turbine)
The actual power output is highly dependent on the site and wind conditions. According to the power curve and the annual average wind speed at the site, we can evaluate the annual electricity generation amount based on the Weibull distribution.
| Annual average of wind speed | Capacity Factor | R3KW | R15KW |
| 3.0 m/s | 5.4％ | 1,427 kWh | 7,135 kWh |
| 4.0 m/s | 12.4％ | 3,251 kWh | 16,255 kWh |
| 5.0 m/s | 21.7％ | 5,715 kWh | 28,575 kWh |
| 6.0 m/s | 32.2％ | 8,461 kWh | 42,305 kWh |
| 7.0 m/s | 42.3％ | 11,106kWh | 55,530 kWh |
Note: Indicates total estimated values, taking into account the availability and consumption of electricity for the control system. Obtained from field results.
