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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... -
Current Balancing Services Use of System (BSUoS) Charges
There 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... -
Daily Balancing Services Use of System (BSUoS) Cost Data
The BSUoS charge recovers the cost of day-to-day operation of the transmission system. Generators and suppliers are liable for these charges, which are calculated daily as a... -
Balancing Services Adjustment Data (BSAD) Forward Contracts
Balancing Services Adjustment Data (BSAD) is used to submit balancing actions to the Balancing & Settlement Code (BSC), which defines the rules and governance for the... -
Dispatch Transparency
This dataset is a component of the Forward Plan 2020-21 commitment to increase the transparency of our operational decision making in the Balancing Mechanism (BM). It includes... -
Upcoming trades
This dataset displays all upcoming electricity trades due to be delivered. To meet our forecast balancing requirements at minimum cost, we trade energy-related products. The... -
Obligatory Reactive Power Service (ORPS)
The obligatory reactive power service (ORPS) is the provision of varying reactive power output. At any given output generators may be requested to produce or absorb reactive... -
Aggregated Balancing Services Adjustment Data (BSAD)
Balancing Services Adjustment Data (BSAD) is used to submit balancing actions to the Balancing & Settlement Code (BSC), which defines the rules and governance for the... -
Carbon Intensity of Balancing Actions
The carbon intensity of balancing actions measures the difference between the carbon intensity of the combined Final Physical Notice (FPN) of machines in the Balancing Mechanism... -
Frequency Response Products Market Information
Frequency Response Products Market Information Report aims to give guidance on the response products requirement and updates on recent changes to procurement of those products. -
Disaggregated Balancing Services Adjustment Data (BSAD)
Balancing Services Adjustment Data (BSAD) is used to submit balancing actions to the Balancing & Settlement Code (BSC), which defines the rules and governance for the... -
Daily Balancing Services Use of System (BSUoS) Volume Data
The BSUoS charge recovers the cost of day-to-day operation of the transmission system. Generators and suppliers are liable for these charges, which are calculated daily as a... -
Monthly Balancing Services Use of System (BSUoS) Forecast Data
The Balancing Services Use of System (BSUoS) costs are reported on a monthly basis with a forecast for the next month and a rolling 24 month period. Here you can find the data... -
Phase 2: FFR Auction Results Summary
As part of our work on developing our balancing services we ran a weekly trial auction for Firm Frequency Response. The weekly auction trial results and order hash data are... -
Firm Frequency Response (FFR) Post Tender Reports
The Firm Frequency Response (FFR) post tender reports are published following each monthly tender. They indicate which tenders were accepted and rejected and the information... -
Daily Balancing Services Use of System (BSUoS) Cost Report
The BSUoS charge recovers the cost of day-to-day operation of the transmission system. Generators and suppliers are liable for these charges, which are calculated daily as a... -
Index Linked Contracted Energy Volume
Index Linked Contract can be used by National Grid ESO to meet the voltage requirement. The contract is normally enacted in the morning ahead of the power exchange auction. The... -
Monthly Balancing Services Use of System (BSUoS) Forecast Reports
The Balancing Services Use of System (BSUoS) costs are reported on a monthly basis with a forecast for the next month and a rolling 24 month period. Here you can find the report... -
Daily Balancing Services Use Of System (BSUoS) Historic & Forecast Costs
The data set shows the daily costs outturn per category associated with balancing the system for the year to date, and the daily forecast costs for the following financial year.... -
Optional Downward Flexibility Management (ODFM) Market Information
In our role as Electricity System Operator (ESO), we balance generation and demand in real time. When demand is low, there may be a requirement for additional flexibility to...