In East Midlands Airport departures they have an interesting selection of “green” demos. Includes a very neat wind power one, where you can turn a handle which makes the model wind generator turn, and in turn lights up the model airport. It makes the very excellent point that when the wind stops the lights go out.

Yawn

Until you get into a bit of this
http://www.pure.shetland.co.uk/html/pure_project1.html
Or pump storage hydro

If we spent some of the money wasted on dirty unreliable expensive nukes on altenatives…………

A battery based electric vehicle was converted to run with a hydrogen fuel cell. This electric/fuel cell hybrid car is now fuelled exclusively by the PURE system, using hydrogen produced from the renewable source. This makes the electric car one of the only 100% carbon free vehicles on the British roads.

I didn’t know they had a car and hydrogen cell factory in the industrial estate they power…. with all they bits created by and delivered by vehicles powered by the same hydrogen cells

wow, super high tech