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 actual Half Hourly BSUoS price. Total costs and volume information by settlement period is also published here.
NOTE: As part of our ongoing efforts to align with data management best practices and improve consistency across datasets, these column ids from the below historical datafiles will be updated on 28th October 2026 as follows:
BSUoS Tariff (£/MWh) → BSUoS Tariff_GBP per MWh
BSUoS Fund Tariff (£/MWh) → BSUoS Fund Tariff_GBP per MWh
Volume (MWh) → Volume_MWh
BSUoS Recovery (£) → BSUoS Recovery_GBP
BSUoS Fund Recovery (£) → BSUoS Fund Recovery_GBP
BSUoS Total Recovery () → BSUoS Total Recovery_GBP
Actual BSUoS Cost (£) → Actual BSUoS Cost_GBP
BSUoS Price (£/MWh Hour) → BSUoS Price GBP per MWh
BSUoS Total Recovery (£) → BSUoS Total Recovery_GBP
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18 Data Files
| Name | Format | Last Changed Sort ascending | Download | Explore |
|---|---|---|---|---|
| Current SF BSUoS Data | CSV | Download (CSV) | view | |
| Current RF BSUoS Data | CSV | Download (CSV) | view | |
| Current II BSUoS Data | CSV | Download (CSV) | view | |
| Historic RF BSUoS Data 2024-2025 | CSV | Download (CSV) | view | |
| Historic SF BSUoS Data 2025-2026 | CSV | Download (CSV) | view | |
| Historic II BSUoS Data 2025-2026 | CSV | Download (CSV) | view | |
| Historic RF BSUoS Data 2023-2024 | CSV | Download (CSV) | view | |
| Historic SF BSUoS Data 2024-2025 | CSV | Download (CSV) | view | |
| Historic II BSUoS Data 2024-2025 | CSV | Download (CSV) | view | |
| Historic RF BSUoS Data | CSV | Download (CSV) | view |
Additional Information
| Field | Value |
|---|---|
| Creator | National Energy System Operator |
| Date Created | January 14, 2020 at 9:56 AM (UTC+00:00) |
| Source | National Energy System Operator |
| Rights | NESO Open Data Licence |
| Update Frequency | Daily (Weekdays) |
cURL integration
# Get a list of dataset's resources
curl -L -s https://api.neso.energy/api/3/action/datapackage_show?id=current-balancing-services-use-of-system-bsuos-data | grep path
# Get resources
curl -L https://api.neso.energy/dataset/d6a4bf54-c63f-4014-a716-49fd3878ca52/resource/f0060fd0-1fc9-4288-a0b3-4af9b592b0cf/download/webprice_output_sf_2026-27_2310260959.csv
curl -L https://api.neso.energy/dataset/d6a4bf54-c63f-4014-a716-49fd3878ca52/resource/26b0f410-27d4-448a-9437-45277818b838/download/webprice_output_rf_2025-26_2310260959.csv
curl -L https://api.neso.energy/dataset/d6a4bf54-c63f-4014-a716-49fd3878ca52/resource/0eda5e28-1dc6-48da-8663-c00e12f2a1e2/download/webprice_output_ii_2026-27_2310260959.csv
curl -L https://api.neso.energy/dataset/d6a4bf54-c63f-4014-a716-49fd3878ca52/resource/544ad552-65e6-47f9-b89c-0b9929dbb869/download/2024-2025-rf.csv
curl -L https://api.neso.energy/dataset/d6a4bf54-c63f-4014-a716-49fd3878ca52/resource/927aac83-c218-476c-9c20-29cf20cee448/download/2025-2026-sf.csv
curl -L https://api.neso.energy/dataset/d6a4bf54-c63f-4014-a716-49fd3878ca52/resource/45e87b67-ed5d-49ea-a149-2b37f467e542/download/2025-2026-ii.csv
curl -L https://api.neso.energy/dataset/d6a4bf54-c63f-4014-a716-49fd3878ca52/resource/47642de9-0738-47df-b230-94a097b61ae7/download/2023-2024-rf.csv
curl -L https://api.neso.energy/dataset/d6a4bf54-c63f-4014-a716-49fd3878ca52/resource/320cdc0d-457f-4849-a0fc-bf6bdd4e21e5/download/2024-2025-sf.csv
curl -L https://api.neso.energy/dataset/d6a4bf54-c63f-4014-a716-49fd3878ca52/resource/ea47c8e4-caa3-49c7-a442-e9644d330f63/download/current_ii_bsuos_data.csv
curl -L https://api.neso.energy/dataset/d6a4bf54-c63f-4014-a716-49fd3878ca52/resource/2e8b2ea6-cdb5-4936-8636-4ab5a3f7e350/download/2016-2023-rf.csv