Batteries are the wrong technology to manage network frequency, says Andrew Scobie, executive chairman at Faraday Grid. Although batteries have their place, he says trying to use them to solve frequency problem is “like using limousines for furniture removals”. Similarly with other assets added the system to provide inertia, manage power factors and quality, or manage voltage. The problem goes deeper than batteries, Scobie says. Transformers were not designed for fast-changing supply and demand.