Question to the Department for Business, Energy and Industrial Strategy:

To ask Her Majesty's Government what definition of electricity storage they intend to use in the provision of storage licences.

The Government and Ofgem’s Smart Systems and Flexibility plan, published in July, announced that Ofgem will shortly consult on a modified generation license for electricity storage facilities. This document set out that the Government and Ofgem will use the definition of storage provided by the Electricity Storage Network, which received broad support from industry, as the basis for defining storage in regulations including licences.

The Electricity Storage Network’s definition is:

• “Electricity Storage” in the electricity system is the conversion of electrical energy into a form of energy which can be stored, the storing of that energy, and the subsequent reconversion of that energy back into electrical energy.

• “Electricity Storage Facility” in the electricity system means a facility where Electricity Storage occurs.