The BSUoS charge recovers the cost of day-to-day operation including the cost of balancing the electricity transmission system.
Who does this charge apply to?
Please note that there are exemptions to the below list.
✓ Final Demand Site
✓ Suppliers
✓ Directly connected Transmission demand
✕ Non-Final Demand Site
✕ Generators
✕ Distribution Network Operators
✕ Embedded Generators
✕ Interconnectors
BSUoS Charge
CMP308 and CMP361 came into effect on 1 April 2023, which changed the way BSUoS charges were recovered. CMP308 defined that BSUoS charges are recovered solely from Final Demand and CMP361 introduced an ex-ante fixed BSUoS tariff.
The BSUoS fixed tariffs and BSUoS monthly forecasts are published within the BSUoS data section below.
For more details on how BSUoS is charged, please go to paragraph 14.31 of the Connection and Use of System Code (CUSC).
For pre-April 2023 BSUoS Methodology, please refer to the Introduction to BSUoS - 2019 document.
Introduction to BSUoS
For more general information about the BSUoS charging process, please consult our introduction presentation.
Latest news and updates
2024/25 BSUoS fixed tariffs webinar slides
Published on 10 July 2023
2024/25 BSUoS fixed tariff publication
Published on 30 June 2023
2023/24 BSUoS fixed tariff webinar slides
Published on 8 February 2023
2023/24 BSUoS fixed tariff publication
Published on 31 January 2023
Useful information and documents
2024/25 BSUoS payment calendar - V3
Published on 13 May 2024
BPA_File specs for DAT Format_CMP3087_361
Published on 25 April 2023
Published on 10 February 2022
SFTP connection instructions for retrieving BPA and BCR reports for BSUoS
Step by step instructions on retrieving your BSUoS BPA and BCR
BSUoS data
News
Name Sort ascending | Published |
---|---|
Draft BSUoS Fixed Tariff Webinar - Q and A | 25 Nov 2022 |
Draft BSUoS FIxed Tariff 2023-24 | 11 Nov 2022 |
CVA Storage Facility Declaration Guidance Note - June 2021 Update | 29 Jun 2021 |
Charging Circular - Western Link HVDC | 16 Oct 2018 |
Charging Circular - The Western HVDC Link Update | 22 Jan 2020 |
Charging Circular - The Western HVDC Link update | 17 Feb 2021 |
Charging Circular - The Western HVDC Link update | 5 Mar 2021 |
Charging Circular - The Western HVDC Link update | 5 Jul 2021 |
Charging Circular - The Western HVDC Link Update | 10 Feb 2020 |
Charging Circular - The Western HVDC Link update | 26 Feb 2021 |
Useful information and documents
BSUoS Monthly Forecast
Here you find the forecast monthly BSUoS costs
Name Sort ascending | Published |
---|---|
BSUoS Report November 2020 | 1 Dec 2020 |
BSUOS Report November 2018 | 12 Nov 2018 |
BSUoS Report Nov 2019 Data | 14 Nov 2019 |
BSUoS Report Nov 2019 | 14 Nov 2019 |
BSUoS Report May 2021 | 1 Jun 2021 |
BSUoS Report May 2019 Data | 14 May 2019 |
BSUoS Report May 2019 | 14 May 2019 |
BSUoS Report May 2018 | 28 Jul 2020 |
BSUoS Report March 2021 | 1 Apr 2021 |
BSUoS Report March 2019 Data | 20 Mar 2019 |
Current BSUoS data
CMP395 BSUoS Data
CMP381 BSUoS Data
CMP345/350 BSUoS data
Current BCR data
Name Sort ascending | Published |
---|---|
2024-03-13 BCRNEW | 13 Mar 2024 |
2024-03-12 BCRNEW | 12 Mar 2024 |
2024-03-11 BCRNEW | 11 Mar 2024 |
2024-03-08 BCRNEW | 8 Mar 2024 |
2024-03-07 BCRNEW | 7 Mar 2024 |
2024-03-06 BCRNEW | 6 Mar 2024 |
2024-03-05 BCRNEW | 5 Mar 2024 |
2024-03-04 BCRNEW | 4 Mar 2024 |
2024-03-01 BCRNEW | 1 Mar 2024 |
2024-02-29 BCRNEW | 29 Feb 2024 |
Historical BSUoS data - II
Historical BSUoS data - SF
Historical BSUoS data - RF
Here you will find historic BSUoS data for all Reconciliation Final (RF) data for financial years dating back to 2001.
Breakdown of operating margin (OPMR), based on forecast volume of reserve, forecast volume of frequency response required, annual weighting factors for STOR contracts, and forecasts of BSUoS charges.
Contains data and support for users of the National Electricity Transmission System (NETS). Here you will find the latest operational data, forecasts, and reports.
Use the ESO Data Portal to gain access to BSUoS Charges and Balancing Costs related datasets that are geared towards API compatibility, providing additional flexibility to end users.
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