Vertical Axis Wind Turbine

The Vertical Axis Wind Turbine is the most popular of the turbines that people are adding to make their home a source of renewable energy. While it is not as commonly used as the Horizontal Axis Wind Turbine, they are great for placement at residential locations and more. .

The virtues of vertical

The turbines we’re used to seeing have horizontal axes; like windmills, their blades spin between parallel and perpendicular to the ground. As noted above, these turbines have gotten huge, because bigger means better when it comes to efficiency. Despite the energy that’s lost in transport and conversion, large turbines are still worth our while.

But there’s a limit to how big horizontal-axis turbines can get, and once we reach that limit, we’ll need a different solution. of Cranfield University’s Offshore Renewable Energy Center thinks vertical axis wind turbines (VAWTs) are the answer.

“Vertical-axis turbines…experience a constant gravitational force, always in the same direction,” he wrote. “Without the stress of holding up 80-meter metal blades by one end, VAWTs can potentially become much larger.”

Since their rotation doesn’t take up as much space as horizontal-axis turbines, he adds, vertical turbines can be placed closer to each other in a wind farm, meaning more electricity can be generated in a given area.

General advantages of a VSWT

VSWTs are more efficient than the FSWTs.

At low wind speeds, the wind turbines can still capture the maximum available power at the rotor, hence increasing the possibility of providing the rated power for wide speed range.


  • Two to three blades with a vertically operating main rotor shaft – the more blades that you have on the unit, the more wind energy it will receive and the more efficiency it will offer
  • Used less frequently than a horizontal wind turbine
  • The position of the blades is different in the VAWT. On this model, the base of the tower holds the generator, and the blades then wrap themselves around the shaft. People use VAWT because they can be placed closer to the ground, which makes them acceptable and effective for use at a residential location.
  • With the vertical axis wind turbine, the rotor shaft is arranged in a vertical pattern
    The VAWT is easier and more affordable to maintain than horizontal units
  • One complains that some users have with the VAWT is that creates less wind energy, which may cause a number of different noises to be a heart. Turbulent airflow is also a possibility that can shorten the life of the system.
  • Installation of the VAWT onto the roof will cause the wind speed to double for maximum wind turbulence and wind energy usage.