Tool

Find a connection point. Read the voltage hierarchy. See the DNO boundary.

The GB network as an interactive map. Drop a pin or enter a postcode to find the most likely connection point for a project of a given size. Filter by voltage, operator, or DNO licence area. The tool loads below and uses the same LTDS-derived data that DNOs publish under Ofgem rules.

32Route 32 · Operations
Interactive 14 DNO licence areas 6 voltage tiers React island Last verified

What this tool does

  • Shows transmission nodes, substations and DNO licence boundaries.
  • Identifies the most likely connection point for a project of a given MW size.
  • Lets you filter by voltage tier (400, 275, 132, 33, 11 kV).
  • Links each region to its DNO and the relevant connection process.
  • Uses data derived from LTDS publications.
GB transmission network pylons crossing the countryside

Why a map mattersNetwork geography drives connection economics

Where a project sits on the network decides whether it connects in 2028 or 2034.

The connection queue is not uniform. Central Scotland has years-long waits for new transmission capacity. Parts of the Midlands and the North West have shorter queues because ASTI reinforcement reaches them sooner. The North of England faces distinct constraints from the South of England.

Understanding where on the network a project sits gives a first-order estimate of how hard its connection will be. This explorer lets developers, advisors, and analysts see the picture at 132 kV and below without manual LTDS parsing.

What does the network look like at your site?

Launch the map below.

Tool

GB network explorer

Interactive tool · Network explorer

Sources: DNO LTDS publications, NGET transmission asset register, NESO connection statistics. Map rendered with React; voltage targets resolved by project size.

Key takeaways

  • Map of GB transmission and distribution at 400 kV through 11 kV.
  • Connection-point finder estimates likely voltage and operator for a given project size.
  • DNO licence boundaries overlaid so you can see which DNO covers a site.
  • For connection process detail, see the Connections route.
  • For detailed capacity headroom, run LTDS data through the LTDS validator.

References

  1. Ofgem LTDS

    Primary network data source.

    Data underpinning the map.

  2. NGET

    E&W transmission asset register.

    Transmission reference.

Continue to engineering tools for BS 7671 calculations and power factor analysis.