STAR-energy by Sifisimpumeleo T&C - PTYLtd.

Vertical axis wind turbines (VAWTs) in addition to being simpler and cheaper to build have the following advantages:
They are always facing the wind – no need for steering into the wind.
Have greater surface area for energy capture – can be many times greater.
Are more efficient in gusty winds – already facing the gust
Can be installed in more locations – on roofs, along highways, in parking lots.
Do not kill birds and wild – life – slow moving and highly visible.
Can be scaled more easily – from milliwatts to megawatts.
Can be significantly less expensive to build – are inherently simpler.
Can have low maintenance downtime – mechanisms at or near ground level
Produce less noise – low speed means less noise
Are more esthetically pleasing – to some one.