October 2, 2012 | David

I love the sight of a wind turbine. But the wind doesn’t always blow. To make large-scale wind power reliable, we need a way of storing energy for calm days.

Supercooling air to its liquid form is one storage option. As the cold air heats back up, it expands, driving turbines that make electricity. A test plant with this technology has been working for two years. The best thing is, it’s a simple concept that can work in the UK. Clean electricity from air – I like it!