Data explorer

On this page, you will find data we've published relating to the commercial operation of the National Electricity Transmission System (NETS). This data includes cost and volume forecasts, and outcomes relating to balancing services, reserve, and response. We also include information associated with contract and services reports, showing the costs of balancing services and the results of tender assessments. 

Real-time demand data

Click here to view a graph of demand data over the last 60 minutes.

Demand data

Historic frequency data

Click here to view historic second-by-second frequency data.

Outcome system services

Find out about contracted and reactive energy volumes and data.

Contracted energy volumes and data

As of 24 November 2017, contract volume files are split by fixed price and index-linked volumes. See the Fixed price and index-linked contract volumes section for these files.

Outcome energy services

These are documents related to the outturn for energy services we have used such as STOR, fast reserve, fast start, and frequency response.

STOR

Published Sort ascending Name
STOR Cost and Vols 06-November-2015
STOR Cost and Vols 03-November-2015
STOR Cost and Vols 08-November-2015
STOR Cost and Vols 05-November-2015
STOR Cost and Vols 02-November-2015
STOR Cost and Vols 07-November-2015
STOR Cost and Vols 04-November-2015
STOR Cost and Vols 29-October-2015
STOR Cost and Vols 26-October-2015
STOR Cost and Vols 31-October-2015
STOR Cost and Vols 28-October-2015
STOR Cost and Vols 30-October-2015
STOR Cost and Vols 27-October-2015
STOR Cost and Vols 01-November-2015
STOR Cost and Vols 23-October-2015
STOR Cost and Vols 20-October-2015
STOR Cost and Vols 25-October-2015
STOR Cost and Vols 22-October-2015
STOR Cost and Vols 19-October-2015
STOR Cost and Vols 24-October-2015
STOR Cost and Vols 21-October-2015
STOR Cost and Vols 17-October-2015
STOR Cost and Vols 14-October-2015
STOR Cost and Vols 16-October-2015
STOR Cost and Vols 13-October-2015
STOR Cost and Vols 18-October-2015
STOR Cost and Vols 15-October-2015
STOR Cost and Vols 12-October-2015
STOR Cost and Vols 11-October-2015
STOR Cost and Vols 08-October-2015
STOR Cost and Vols 05-October-2015
STOR Cost and Vols 10-October-2015
STOR Cost and Vols 07-October-2015
STOR Cost and Vols 09-October-2015
STOR Cost and Vols 06-October-2015
STOR Cost and Vols 02-October-2015
STOR Cost and Vols 29-September-2015
STOR Cost and Vols 04-October-2015
STOR Cost and Vols 01-October-2015
STOR Cost and Vols 28-September-2015
STOR Cost and Vols 03-October-2015
STOR Cost and Vols 30-September-2015
STOR Cost and Vols 27-September-2015
STOR Cost and Vols 24-September-2015
STOR Cost and Vols 21-September-2015
STOR Cost and Vols 26-September-2015
STOR Cost and Vols 23-September-2015
STOR Cost and Vols 25-September-2015
STOR Cost and Vols 22-September-2015
STOR Cost and Vols 20-September-2015

Balancing services adjustment data (BSAD)

We are required to publish BSAD. You can access the data via the BSAD portal.

For any issues in the contact us please contact on [email protected].

Trading data

To find data for forward contracts, please go to our forward contracts data feed.

To find data for warming contracts, please go to our warming contracts data feed.

PGBT offer details

We will provide PGBT offer submission data on a reasonable-endeavours basis by the end of business day + 1.

Each PGBT offer submission is reported against the start date of the PGBT requirement with which this offer is associated.

All valid offers will be published even if they are subsequently withdrawn or expire.

The Requirement Identifier Code is a unique number associated with each PGBT requirement identified by National Grid.

If you have any questions, please contact our NETA helpdesk on 0800 777770.