In this Order—

• “the Act” means the Planning Act 2008;

• “electricity storage facility” means a facility which generates electricity from energy that—

  1. a

     was converted from electricity by that facility, and

  2. b

     is stored within that facility for the purpose of its future reconversion into electricity;

• “exempt electricity storage facility” means an electricity storage facility which is not a pumped hydroelectric storage facility;

• “pumped hydroelectric storage facility” means an electricity storage facility that stores the gravitational potential energy of water that has been pumped to a higher level so that its return to a lower level can be used to generate electricity.