Vertical Axis Wind Turbine (VAWT) is a type of wind generator, whose main feature is the vertical main rotor shaft. This solution offer a number of advantages over traditional horizontal ones, such better performance at low wind speed and very silent operation. They can be arranged closer together in wind farm, allowing more units in a given space.

Main characteristics as follow:

Can be provided complete systems as follow:

Vertical Axis Wind Turbine On grid system
Vertical Axis Wind Turbine On grid system
Vertical Axis Wind Turbine Off grid system
Vertical Axis Wind Turbine Off grid system
Model ETV-2.0 ETV-6.0 ETV-0.3kW ETV-0.5kW ETV-1kW ETV-2kW ETV-3kW ETV-5kW
Rated power (W) 200 500 300 500 1000 2000 3000 5000
Max power (W) 250 650 400 650 1500 2500 4000 6000
Start-up wind
speed (m/s)
1 1 1 1 2.8 2.8 2.8 2.8
Rated wind
speed (m/s)
10 10 10 10 11 11 12 11
Working wind
speed (m/s)
1-25 1-25 1-25 1-25 3-25 3-25 3-25 3-25
Survive
wind
speed (m/s)
50 50 50 50 50 50 50 50
Blades
length (m)
1,28 1.8 1.3 1.5 2.65 3.65 3.65 5.2
Blades Rotor
Diameter (m)
0,78 1 1.4 1.5 1.4 2.3 2.6 4
Blades
material
FRP FRP FRP FRP FRP FRP FRP FRP
Mill Weight (kg) 30 60 50 64 175 285 355 665
Swept Area (m2) 0.9 1.5 1.82 2.25 3.71 8.395 9.490 20.8
Tower
Eeight (m)
6 6 6 6 6 6 8 10
Generator type PM Axial Flux PM Axial Flux PM Axial Flux PM Axial Flux PM Axial Flux PM Axial Flux PM Axial Flux PM Axial Flux
Rate
speed (rpm)
200 200 200 200 150 160 160 100
Start
torque (Nm)
< 0,1 <0.1 <0.1 <0.1 <0.3 <0.3 <1 <1
Optinal output
voltage (VDC)
12-24 12-24 12-24 12-24 24-220 24-380 48-380 48-500
Protection
Method
Brake + PWM Brake + PWM Brake + PWM Brake + PWM Brake + PWM Brake + PWM Brake + PWM Brake + PWM
Protection
Grade
IP54 IP54 IP54 IP54 IP54 IP54 IP54 IP54
Working
Temperature (C°)
-40 +50 -40 +50 -40 +50 -40 +50 -40 +50 -40 +50 -40 +50 -40 +50
Life time
(Years)
20 20 20 20 20 20 20 20