Cylinders of liquid air could back-up your data centre and make the grid smarter, says Peter Judge.
Energy is a big issue, and the problem is not just using it, but storing it too. I’ve recently been looking at an approach to energy storage that could double up to provide backup power to data centres.
The big difficulty with running an electric grid is in storing the energy. It’s costly and not usually very efficient to store electricity, and the demand from consumers varies very rapidly, so the grid has to respond, more or less immediately to any peaks and troughs.