Title Owner Updated

Monthly Balancing Services Summary (MBSS) Open

The Monthly Balancing Services Summary (MBSS) gives the costs and volumes of balancing services used by the Electricity System Operator. These costs are broken into individual months in the past financial...

75 ESO
Tags: Ancillary Balancing Constraints Mbss Monthly Reserve Services Stor Subscribable Trades
CSV PDF XLSX

National Grid ESO 2021-12-01

Current Balancing Services Use of System (BSUoS) Charges Open

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 actual Half Hourly BSUoS price....

3 ESO
Tags: Balancing Bsuos Charging Services Subscribable
CSV

National Grid ESO 2021-12-01

Daily Balancing Services Use of System (BSUoS) Cost Data Open

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 flat tariff for all users....

5 ESO
Tags: Balancing Bsuos Cost Daily Historical Balancing Subscribable
CSV

National Grid ESO 2021-12-01

Balancing Services Adjustment Data (BSAD) Forward Contracts Open

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 balancing mechanism and imbalance...

6 ESO
Tags: Adjustment Ancillary Balancing Bsad Cost Service Subscribable
CSV

National Grid ESO 2021-12-01

Index Linked Contracted Energy Volume Open

Index Linked Contract can be used by National Grid ESO to meet the [voltage requirement](https://www.nationalgrideso.com/transmission-constraint-management?market-information "voltage"). The contract is...

133 ESO
Tags: Balancing Balancing Services Constraint Contract Contract Enactment Fixed Index Index-linked Linked Price Reactive Spread Subscribable Trading Voltage Volume
CSV Unknown

National Grid ESO 2021-12-01

Balancing Services Charging Report (BCR) Open

The Balancing Services Charging Report (BCR) provides a breakdown of the Balancing Services Use of System (BSUoS) charge. There is a BCR for each run type we calculate a BSUoS charge for - Interim Initial...

469 ESO
Tags: Balancing Bsuos Charging Report Services Subscribable
ZIP

National Grid ESO 2021-12-01

Upcoming Trades Open

In order to meet forecast Electricity System Operator (ESO) balancing requirements at minimum cost, ESO trades energy-related products. This dataset displays all upcoming electricity trades due to be delivered...

1 ESO
Tags: Balancing Energy Subscribable System Trades
CSV

National Grid ESO 2021-12-01

Aggregated Balancing Services Adjustment Data (BSAD) Open

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 balancing mechanism and imbalance...

8 ESO
Tags: Adjustment Ancillary Balancing Bsad Cost Service Subscribable
CSV

National Grid ESO 2021-12-01

Carbon Intensity of Balancing Actions Open

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 (BM) and the equivalent profile...

2 ESO
Tags: Actions Balancing Carbon Intensity Subscribable
CSV PDF

National Grid ESO 2021-12-01

Daily Balancing Services Use of System (BSUoS) Cost Report Open

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 flat tariff for all users....

77 ESO
Tags: Balancing Bsuos Cost Daily Report Subscribable
PDF

National Grid ESO 2021-12-01

Disaggregated Balancing Services Adjustment Data (BSAD) Open

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 balancing mechanism and imbalance...

9 ESO
Tags: Adjustment Ancillary Balancing Bsad Cost Service Subscribable
CSV

National Grid ESO 2021-12-01

Daily Balancing Services Use of System (BSUoS) Volume Data Open

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 flat tariff for all users....

5 ESO
Tags: Balancing Bsuos Daily Subscribable Volume
CSV

National Grid ESO 2021-12-01

Daily Balancing Services Use Of System (BSUoS) Historic & Forecast Costs Open

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. In the dataset the category...

3 ESO
Tags: Balancing Bsuos Cost Daily Forecast Historic Outturn Subscribable
CSV

National Grid ESO 2021-11-27

Phase 2: FFR Auction Results Summary Open

As part of our work on developing our balancing services we are running a weekly trial auction for Firm Frequency Response. The weekly auction trial results and order hash data are available here.

20 ESO
Tags: Auction Balancing Balancing Services Dlh Ffr Lfs Response Subscribable Trial
CSV ZIP

National Grid ESO 2021-11-27

Firm Frequency Response (FFR) Market Information Open

Firm Frequency Response (FFR) market information reports on the FFR requirement for two months ahead of the publishing month, as well as information on the contracts due to provide in the month following the...

68 ESO
Tags: Balancing Contract Ffr Firm Frequency Market Response Service Subscribable Tender
CSV PDF XLSX

National Grid ESO 2021-11-26

Dispatch Transparency Open

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 the publication of actions taken...

4 ESO
Tags: Balancing Bm Boa Dispatch Dispatch Transparency Mechanism Operational Subscribable Transparency
CSV PDF PNG

National Grid ESO 2021-11-25

Obligatory Reactive Power Service (ORPS) Open

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 power to help manage system...

5 ESO
Tags: Ancillary Balancing Obligatory Orps Power Reactive Service Subscribable Utilisation
CSV PDF XLSX

National Grid ESO 2021-11-19

Firm Frequency Response (FFR) Post Tender Reports Open

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 submitted for these tenders. Reason...

43 ESO
Tags: Balancing Contract Ffr Firm Frequency Response Service Subscribable Tender
CSV Unknown XLSM XLSX

National Grid ESO 2021-11-17

Monthly Balancing Services Use of System (BSUoS) Forecast Data Open

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 for the 24 month ahead forecast....

82 ESO
Tags: Balancing Bsuos Cost Forecast Monthly Subscribable
CSV XLSX

National Grid ESO 2021-11-13

Monthly Balancing Services Use of System (BSUoS) Forecast Reports Open

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 created each month which...

50 ESO
Tags: Balancing Bsuos Cost Forecast Monthly Subscribable
PDF

National Grid ESO 2021-11-13

Optional Downward Flexibility Management (ODFM) Market Information Open

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 balance generation and demand, as...

13 ESO
Tags: Ancillary Balancing Downward Flexibility Market Information Odfm Subscribable
CSV PDF

National Grid ESO 2021-11-02

Firm Fast Reserve Post Tender Reports Open

Fast Reserve provides the rapid and reliable delivery of active power through an increased output from generation or a reduction in consumption from demand sources, following receipt of an electronic dispatch...

13 ESO
Tags: Ancillary Balancing Fast Firm Reserve Service Subscribable Tender
Unknown

National Grid ESO 2021-07-20

Short Term Operating Reserve (STOR) Post Tender Reports Open

If demand ends up being greater than forecast, or there is unforeseen generation unavailability, extra sources of power may be needed to manage the system. One form of reserve that is used to manage this is...

8 ESO
Tags: Ancillary Balancing Information Market Report Reserve Service Stor Subscribable Tender
XLSX

National Grid ESO 2021-07-20

Optional Downward Flexibility Management (ODFM) Service Documents Open

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 balance generation and demand, as...

21 ESO
Tags: Ancillary Balancing Downward Flexibility Guidance Odfm Subscribable
DOC M4V PDF XLSX

National Grid ESO 2021-07-20

Fast Reserve Market Information Open

Fast Reserve provides the rapid and reliable delivery of active power through an increased output from generation or a reduction in consumption from demand sources, following receipt of an electronic dispatch...

36 ESO
Tags: Ancillary Balancing Fast Firm Information Market Reserve Service Subscribable
PDF XLSX

National Grid ESO 2021-07-20

Short Term Operating Reserve (STOR) Market Information Open

If demand ends up being greater than forecast, or there is unforeseen generation unavailability, extra sources of power may be needed to manage the system. One form of reserve that is used to manage this is...

16 ESO
Tags: Ancillary Balancing Information Market Report Reserve Service Stor Subscribable Tender
PDF XLSX

National Grid ESO 2021-07-20