What do you think of vertical axis wind turbines? Seems to me they'd complement small domestic PV installations nicely and could use some wider usage
I’ve heard some people get quite preachy about vertical axis wind turbines being no good, but personally I’m rather fond of them. I definitely agree that for domestic use, they make more sense than regular windmills. They’re also much better suited to urban environments.
The typical style of wind turbines are great when you have lamellar flowing air currents, like near the coast or on flat plains, but city wind is more gusty and turbulent. Vertical axis turbines definitely seem ideal for that!
I think some of the reservations people have stem from the fact that, in the past, vertical axis wind turbines have typically been less reliable, and the turbine blades are more prone to fatigue. Though using modern engineering materials and turbine designs, I’m not convinced those old problems still apply.
Some designs for small scale applications are also impressively discreet and quiet – though seemingly rather expensive!