The "Distributed Generation SP Manweb Heat Maps - SPM Primary Substations" dataset provides an indication of SPEN’s network capabilities and potential opportunities to connect Distributed Generation (DG) to the 11kV, 33kV and 132kV network in the SP Manweb (SPM) licence area (covering Cheshire, Merseyside, North Shropshire, North Wales). Each substation and circuit are assigned one of the following categories:Green: All operational factors are within tolerable limits and so opportunities may exist to connect additional DG without reinforcing the network (subject to detailed studies). Amber: At least one factor is nearing its operational limit and hence, depending on the nature of the application, network reinforcement may be required. However, this can only be confirmed by detailed network analysis. Red: At least one factor is close to its operational limit and so installation of most levels of DG and a local connection is highly unlikely. It may also require extensive reinforcement works or given the lack of a local connection, require an extensive amount of sole user assets to facilitate such a connection.For additional information on column definitions, please click on the Dataset schema link below.Disclaimer: Whilst all reasonable care has been taken in the preparation of the information and data presented within these pages, SP Energy Networks is not responsible for any loss that may be attributed to the use of the data.Download dataset metadata (JSON)If you wish to provide feedback at a dataset or row level, please click on the “Feedback” tab above.Data TriageAs part of our commitment to enhancing the transparency, and accessibility of the data we share, we publish the results of our Data Triage process.Our Data Triage documentation includes our Risk Assessments; detailing any controls we have implemented to prevent exposure of sensitive information. Click here to access the Data Triage documentation for the Distributed Generation Heat Maps dataset. To access our full suite of Data Triage documentation, visit the SP Energy Networks Data & Information.