National Grid Electricity System Operator (ESO) is the transmission system operator, working to balance supply and demand in real time, as well as coordinating markets and auctions which ensure sufficient future supply, and exploring initiatives such as demand-side response measures to reduce peaks in electricity demand.
Available DatasetsShowing 10 of 10 results
- Interconnector Requirement and Auction Summary DataNational Grid ESO (NGESO) trades on interconnectors to adjust the flow of electricity into or out of Great Britain to help manage system issues such as Rate Of Change Of Frequency (ROCOF), thermal constraints or to manage energy requirements such as upwards and downwards margin. Trades take place on IFA1, BritNed, NEMO, IFA2 and EL interconnectors. We invite qualified counterparties into NGESO Interconnector (IC) auctions which run ad hoc across the day. The counterparties, who hold respective interconnector capacity or be able to secure the capacity later on, can bid in the auction based on the requirement. Requirements are not firm and are subject to change depending on prevailing system conditions. When the auction has been concluded, the information for a given requirement (lot) will be updated to include the volumes secured on each interconnector, the best price, the volume-weighted average price (VWA), and the clearing price. The requirement may not be completely filled. To participate in this market, a counterparty is required to have a Grid Trade Master Agreement (GTMA) in place with NGESO and to have access to capacity on channel interconnectors, along with being registered with the BSC party. OTF Dates - Featuring Trading At various times of the year members of the trading team are invited along to the OTF to provide a deep dive or insight into our day job. Here are some of the OTF dates the trading team have attended: 6th July - DA trading on Eleclink click here 27th July - High cost trading days click here 17th August - CMN and trading data locations click here 5th October - Overview of how we trade click here >**NOTE:** Documentation relating to interconnector trading, including the procurement framework and supporting materials: Interconnector Trading Procurement Framework1Licence not specified5 months ago
- Day Ahead Wind ForecastThe dataset contains national and BMU wind forecast over a day ahead timescale as well as all historic day ahead wind forecasts to assist the industry to make efficient decisions in balancing their supply and demand positions.1Licence not specified5 months ago
- Constraint Breakdown Costs and VolumeThe publication consists of constraint breakdown information to provide additional transparency of why as ESO we are taking actions on the system. Please note that tags applied to actions can occasionally be changed post event and in this instance the information in this dataset would be refreshed to reflect the up to date information. The data is applicable to the transmission network only.1Licence not specified5 months ago
- Short Term Operating Reserve (STOR) Day Ahead Auction ResultsAs part of Clean Energy Package (CEP) 6.9 we will be running daily auction for procurement of Short Term Operating Reserve (STOR). The daily results from the auction are available here.1Licence not specified5 months ago
- Monthly Balancing Services summary (MBSS)The MBSS gives the costs and volumes of balancing services used by the ESO. These costs are broken into individual months in the past financial year, as well as by each individual service. The most recent month is based on preliminary figures, which are subject to change once updated information becomes available. These changes will be evident in the datasets of future months. Alongside the data files are the PDF reports of the data, giving some extra insight and analysis. >**Note:** we have withdrawn the monthly Balancing Services summary 2022/23 report for March 2023, due to some data errors. It will be available on the portal once the issue is resolved. Apologies for any inconvenience.1Licence not specified5 months ago
- National Carbon Intensity ForecastThis dataset contains national carbon intensity forecast for the GB electricity system. The carbon intensity of electricity is a measure of how much CO2 emissions are produced per kilowatt hour of electricity consumed.1Licence not specified5 months ago
- Thermal Constraint CostsThermal constraints are taken when the amount of energy that would flow naturally from one region to another exceeds the capacity of the circuits connecting the two regions. This dataset provides outturn system costs for thermal constraints across a number of significant constraint boundaries.1Licence not specified5 months ago
- Long Term (2-52 weeks ahead) National Demand ForecastThis dataset contains incremental updates for 2-52 weeks ahead demand forecast. The forecast assist the industry to make efficient decisions in balancing their supply and demand positions.1Licence not specified5 months ago
- Country Carbon Intensity ForecastThis dataset contains country carbon intensity forecast for the GB electricity system.The carbon intensity of electricity is a measure of how much CO2 emissions are produced per kilowatt hour of electricity consumed.1Licence not specified5 months ago
- Current Balancing Services Use of System (BSUoS) ChargesThere is a file for each run type we calculate a BSUoS charge for - Interim Initial (II), Settlement Final (SF) and Reconciliation Final (RF). These are updated daily with the actual Half Hourly BSUoS price. Total costs and volume information by settlement period is also published here. >**NOTE:** We have paused the billing due to system outage from 26/04/2024 to 20/05/2024 (inclusive) and during this period there will be no BSUoS web prices issued. The billing will resume on 21/05/2024 and the data will be published on daily basis. Please find the link for more information.1Licence not specified5 months ago
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