The data sets contain geographic areas where we have identified (using the criteria described in the Call for Evidence) a potential need for strategic investment in our electricity network to enable ‘green recovery’ projects to proceed over the next 2 -3 years. The data contains areas that could benefit from these investments and are based on the distribution areas of the substations named on the map. The type of network reinforcement proposed in these areas varies but includes new or upgraded substations (ranging from smaller 11kV to larger 33kV and 132kV substations), as well as investment to upgrade the existing circuits (cables and overhead lines) connecting these substations to the wider electricity distribution network. Some of the projects will also create new high voltage assets and effectively bring the NGED network physically closer to areas where we know there is significant interest in green investment, but where the capacity of our network is more limited at present.