Bluenergy AG created this upright wind turbine covered in solar panels some years ago.

It’s brilliant.

It works between 4mph and 90mph. The solar panels are made with a surface that traps light. The turbine is at the bottom so is easy to service. When there’s no wind, there’s still the chance of sun. When there’s no sun, there’s still the chance of wind.

Where is it now?

Unbelievably there’s hardly any information about it apart from this film presentation. We’re Hunting – high and low…