⚠NORTH SCOTLAND0 gCO₂100% constraint·⚠SOUTH SCOTLAND0 gCO₂60% constraint·NORTH WEST ENGLAND8 gCO₂7% constraint·NORTH EAST ENGLAND1 gCO₂8% constraint·YORKSHIRE43 gCO₂32% constraint·NORTH WALES & MERSEYSIDE3 gCO₂24% constraint·⚠SOUTH WALES258 gCO₂39% constraint·WEST MIDLANDS25 gCO₂2% constraint·EAST MIDLANDS148 gCO₂5% constraint·EAST ENGLAND117 gCO₂15% constraint·⚠SOUTH WEST ENGLAND358 gCO₂48% constraint·SOUTH ENGLAND195 gCO₂30% constraint·LONDON157 gCO₂16% constraint·SOUTH EAST ENGLAND203 gCO₂19% constraint·
GB Regional Electricity Intelligence

Live carbon intensity, generation mix, and BM balancing cost across all 14 GB DNO regions, including how often NESO takes transmission constraint action in each.

Updated every 30 minutes.
Sourced from Elexon and NESO.
No interpretation. Observable facts only.
Open live map →View methodology →
GRIDSTATEGB GRIDHALF-HOUR FROM 06:30 UTC
RegionCIConstr
⚠North Scotland0100%
⚠South Scotland060%
North West England87%
North East England18%
Yorkshire4332%
North Wales & Merseyside324%
⚠South Wales25839%
West Midlands252%
East Midlands1485%
East England11715%
⚠South West England35848%
South England19530%
London15716%
South East England20319%
GB AVG10829%
LIVE NOW · GB grid averaging 108 gCO₂/kWh · 4 regions in active constraint · Half-hour from 06:30 UTC
The Problem
Slow portals
Elexon Insights and NESO require knowing what to search for. Regional transmission constraint data is buried in settlement tables.
Raw data, no context
BOALF data shows actions. Carbon Intensity API shows intensity. Neither shows how one region compares to another, or whether today is unusual.
Fragmented sources
A complete regional picture requires Elexon, NESO, and N2EX. Five sources, five tabs, no integration.
Who It's For
Battery storage developers
See how often NESO takes transmission constraint actions in each region, and how that is trending, before committing to a site. Connection applications alone cost £50,000-£250,000 to initiate.
Planning consultants
Evidence regional grid conditions in planning submissions and client reports with sourced, timestamped data and full methodology documentation.
Energy brokers
Support client conversations about flexible tariffs and demand response with regional grid data updated every 30 minutes.
Data Architecture
NESO Carbon           Elexon BOALF          Elexon BOD            Elexon MID
Intensity API    →    SO-flagged       →    Bid/Offer        →    N2EX/APX
Regional CI           constraint            price stream          day-ahead
48h forecast          actions 48h           381k records/48h      GB reference

      ↓                     ↓                     ↓                     ↓
      └─────────────────────┴─────────────────────┴─────────────────────┘
                                     ↓
                          Python ingestion pipeline
                          Every 30 minutes · Railway
                                     ↓
                               Turso database
                          Time-series · 14 regions
                                     ↓
                    ┌────────────────────────────────────┐
                    │  Live map      │  Trend charts     │
                    │  Snapshots     │  Intelligence     │
                    │  Alerts        │  Saved regions    │
                    └────────────────────────────────────┘
All source data is public. Full methodology at /methodology · Data status at /status

NESO Carbon Intensity API (live and forecast) · Elexon BOALF · Elexon BOD · N2EX/APX via Elexon