Markets · GB
Great Britain
The distribution operators publish headroom at their substations in the units each one uses, and NESO and the operators publish their connection registers.
- Stations with a published figure
- 4,211
- Of those, with room for new demand
- 3,292
- Sources read
- 35
Live map
- Room published
- Queue, no room published
- Operator says full
- Nothing published
Hover a station for its figure; click to see its queue. Zoom with ⌘ or Ctrl and scroll, or two fingers.Figures as read 25 September 2026
What Great Britain publishes
- Demand headroom at primary and bulk supply points, from each distribution operator's capacity map
- Connection registers from NESO and the distribution operators: project, MW and status
- The grid supply point above each primary, from the long-term development statements
What it doesn't
- A single national figure: each operator publishes its own map, method and unit
- Customer names on most distribution registers
Most room published
| Station | Operator | Room | Source |
|---|---|---|---|
| Creyke Beck | — | 315 MW | HeatmapNorthern PowergridHeadroom at Northern Powergrid substations.About this sourcePublisher ↗ |
| Bradford West | — | 274 MW | HeatmapNorthern PowergridHeadroom at Northern Powergrid substations.About this sourcePublisher ↗ |
| Elland | — | 274 MW | HeatmapNorthern PowergridHeadroom at Northern Powergrid substations.About this sourcePublisher ↗ |
| Thurcroft | — | 219 MW | HeatmapNorthern PowergridHeadroom at Northern Powergrid substations.About this sourcePublisher ↗ |
| Osbaldwick | — | 205 MW | HeatmapNorthern PowergridHeadroom at Northern Powergrid substations.About this sourcePublisher ↗ |
| Kirkstall B | — | 205 MW | HeatmapNorthern PowergridHeadroom at Northern Powergrid substations.About this sourcePublisher ↗ |
Sources
Companies House
Resolves GB company names to their official Companies House registration numbersDepartment for Energy Security and Net Zero
Great Britain's renewable and storage planning pipeline, every project at or above 150 kWDNO heatmaps
The GB distribution network operator named on each stationElectricity North West
Present-day published capacity for ENWL's whole HV and LV distribution network — 111,015 11kV sections, 82,765 6.6kV sections and 33,198 distribution transformers, each with the publisher's own WGS84 pointElexon
Daily reference covering roughly 2,989 GB Balancing Mechanism UnitsEnergy Networks Association / GB Distribution Network Operators
Distribution-level embedded capacity queue across multiple GB network operatorsENTSO-E Transparency Platform
Hourly bidding-zone telemetry across 14 European countries: prices, actual load, generation by type, imbalance pricesHeatmap
Northern PowergridHeatmap table
Northern PowergridLow Carbon Contracts Company
Every Great Britain CfD contract with named counterparty, technology, capacity, and strike-price contextLow Carbon Contracts Company
Monthly bridge connecting GB CFD contracts to their Elexon balancing unitsLTDS heatmaps
The GB distribution network operator named on each stationNational Energy System Operator
Great Britain's transmission connection register with named projects and developersNational Energy System Operator
Great Britain's Future Energy Scenarios, the operator's Pathways to Net ZeroNational Energy System Operator (NESO)
TNUoS half-hourly demand tariffs per GB demand charging zone (14 zones): the billed floored GBP/kW figure plus the unfloored locational Peak/Year-Round componentsNational Energy System Operator / EMR Delivery Body
Great Britain's Capacity Market register of awarded, committed-capacity unitsNational Grid Electricity Distribution
Annual CMP435 reform register adds named applicant companies to NGED's connection queueNational Grid Electricity Distribution
Monthly distribution connection queue across 45 Grid Supply Point areas in NGED's networkNational Grid Electricity Distribution
Embedded capacity register naming the customer behind each connection, applicant by applicantNational Grid Electricity Distribution
Quarterly network-opportunity headroom showing where spare capacity actually existsNESO
NESO Beyond 2030 / Clean Power 2030 recommended GB transmission reinforcement programme (~140 new/upgraded substations + circuits) with an Early In Service Date (EISD)NESO
Daily thermal constraint cost (GBP) per boundary / constraint group (SCOTEX, ESTEX, SSE-SP, SSHARN, SEIMP, SWALEX) - the published cost NESO pays to manage congestion across each bulk transmission boundaryNESO
Per-boundary transmission transfer headroom (Capability minus Security Required Transfer, MW) for each of the ~22 GB bulk boundaries (B0, B6F, …) per year to 2043, under each FES2024 scenario + the Clean Power 2030 pathwayNESO (National Energy System Operator)
Named GB projects with an existing connection agreement after applying for Gate 2 in Connections ReformNESO / Ofgem / DESNZ Great Britain grid knowledge base
The 700+ GW oversubscribed connection queue and the TMO4+/Gate 2 'first ready and needed' reform (Ofgem Apr 2025)Network capacity map
National Grid Electricity DistributionNIE Networks (Northern Ireland DNO)
Per-substation demand AND generation headroom for every NI bulk supply point and primary substation (241 markers / 265 electrical sides), each geocodedNIE Networks (Northern Ireland DNO)
Official NIE Networks OpenDataSoft asset-site register for Northern Ireland grid supply points, bulk supply points, and primary substationsNorthern Powergrid
Per-substation FORECAST demand headroom (MW) for each year to 2050 under each DFES scenario - the forward 'when does this substation run out of room for new demand' signal present-day heatmaps cannot showNorthern Powergrid
Monthly embedded capacity register spanning all 14 GB distribution licence areasPlanning Inspectorate
Daily GB register of major energy infrastructure consent applications (EN01–EN05)SP Energy Networks
SP Distribution DG Connections Network Info at GSP grainSSEN Distribution
Identifies SSEN's actively managed Orkney and Isle of Wight constraint zones by nameSSEN Distribution
SSEN Distribution connection register spanning both the SEPD and SHEPD GB licence areasUK Power Networks
UK Power Networks connection register across all three GB areas: EPN, LPN and SPN