Correspondence: The Faraday Challenge: advice from Sir Mark Walport

A letter from the Government Chief Scientific Adviser, Professor Sir Mark Walport, to the Secretary of State for Business, Energy and Industrial Strategy (BEIS), the Rt Hon Greg Clark MP. In the letter, Sir Mark evaluates the case for a new research institution to act as a focal point for work on battery technology, energy storage and grid technology. This evaluation was commissioned as part of the Industrial Strategy green paper.