A Big Battery

There are very few genuinely innovative energy products. The problem with energy is that the laws of physics limit what can be done and when it can be done. In the case of electrical energy we have the means of generating electricity from non fuel sources, – wind and light – but until now no really easy means of storing the electricity that we can generate. Attempts to feed solar and wind generated power into a grid fail to be effective in large emission reductions; because of the intermittency of the source of energy we need to have large power stations running on standby by, wasting fuel and creating emissions, to cover the times when the wind does not blow and the sun produces no light.