Same calculated grid demand used by the main dashboard.
Live Grid Data is an independent UK electricity dashboard showing live demand, generation mix, carbon intensity and interconnector flows in one place.
About Live Grid Data
Live Grid Data is a small, independent project created to answer a simple question: what’s happening on the UK electricity grid right now?
There’s a lot of energy data available, but it’s often spread across various sources and can be hard to understand. This site gathers that information into one location, making it easier to see how demand changes, where electricity comes from, and how the energy mix shifts throughout the day.
Whether there’s a surge in wind generation, a decline in demand overnight, or changes in carbon intensity, the goal is to make these changes visible in a way that is quick and easy to understand.
Why Live Grid Data exists: the aim is to make UK electricity data easier to understand, more visual, and more accessible for everyone — from energy professionals to everyday users interested in how the grid works.
Why this exists
This started as a hobby project born out of curiosity about how the grid functions and how renewable energy fits into the overall picture. Over time, it has become a tool that others may also find helpful — whether you’re just curious or monitoring the energy system closely.
It isn’t backed by a company or an official organization — just an ongoing side project that continues to develop.
Independent, transparent and evolving
The site is designed to be useful and readable, while still being honest that live electricity data can be delayed, revised or calculated differently by different sources.
How the data flows
SourceNESO / Elexon
Ingest15-minute updates
CalculateCore metrics
CorrectFinalised data
DisplayLive pages
Transparent by design
Live electricity data can change as source feeds update, estimates are replaced, or finalised historical data becomes available. The site is built to show the live picture clearly while still recognising that final values can be revised later.
How the site fits together
1. Collect
Live and public grid feeds are gathered into the site’s local data layer.
2. Calculate
Core dashboard values are normalised into demand, generation, carbon and flow views.
3. Explain
The pages turn the numbers into readable charts, summaries and plain-English context.
Grid Demand — Last 24 Hours
Grid Demand with GB Demand and UK Generation
Last 24H
This chart mirrors the main dashboard demand view, showing recent UK grid demand, GB demand and domestic generation over the last 24 hours.
A quick note on accuracy
Every effort is made to use reliable, publicly available data and present it clearly. However, this site isn’t an official source, and the numbers shown here should be treated as suggestive rather than final.
Data can be delayed, revised, or calculated differently depending on the source. Because of this, accuracy can’t be guaranteed, and figures may not always match other platforms exactly.
Other useful sources
If you want to explore further or compare figures, it’s worth checking out a few other sources — each one looks at the data in its own way:
- National Grid ESO
- BMRS
- GridWatch
- Energy Dashboard
Looking at multiple sources can give you a fuller picture of what’s happening.
Return to the live UK electricity dashboard
Page freshness signal: Live — Updated within the live window. Latest row Thu, 21 May 2026 19:15 BST.
FAQ
Quick answers about this page and the live data.
Is Live Grid Data UK an official source?
No. It is an independent dashboard based on public electricity data feeds and should be used as an explanatory monitoring tool.
How often does the data update?
The site is designed around regular cache refreshes, typically every 15 minutes when upstream data is available.
Why can live electricity data change later?
Some source data can be delayed, estimated or revised. The dashboard prioritises clarity while retaining source-timestamp awareness.
Where should I start?
Start with the homepage for the live picture, then use the demand, carbon, generation and interconnector pages for context.