BSC Operations Headline Reports
The report provides commentary on BSC market operation, identifying key events and reporting on important data that may impact BSC Parties. It is produced on a monthly basis and covers the data from the two previous months and is based on a combination of latest and best available data.
- Feature on Incorrect TLMS at the interim information (ii) run
- Feature article on Balancing Mechanism actions in October
- Regular article on Trading Charges in September
- Regular article on Balancing Mechanism volumes in September
- Regular article on System Prices in October
Incorrect TLMS at the interim information (ii) run
On the 22 and 23 October 2018, an issue with the collection of Metered Volumes for a number of BM Units has affected the accuracy of the Transmission Loss Multipliers (TLM).
The TLM data used in the Interim Information (II) Settlement Runs for these dates is less accurate than normal for Parties with Non-Interconnector BM Units. Note that the II Settlement Run has no financial Settlement and is for information only.
All outstanding Metered data has been retrospectively collected by the Central Data Collection Agent. The Metered Volumes and TLMs will be corrected in the next Settlement Run, the Initial Settlement Run (SF).
Average Offtaking TLM
Flagged balancing actions on 23 October 2018
72% of balancing actions were Flagged in the System Price calculation on 23 October 2018. This is the highest percentage of Flagged balancing actions on a day in the past three years. A total of 134GWh of balancing actions were taken on this date.
42% of actions were Stage 1 Flagged and retained their initial price. 30% of balancing actions were Stage 2 Flagged and lost their initial price. Note these are all accepted balancing actions – only a proportion of these will feed through to the final price.
91% of Sell actions (Bids and Sell Balancing Services Adjustment Actions) were Stage 1 Flagged; 45% of these were from Wind BMUs. The average initial price of a Flagged Wind Sell action was -£70.50/MWh.
Full list of reports
The BSC Operations Headline Report is produced on a monthly basis for the BSC Panel meetings, and is circulated to the Imbalance Settlement Group (ISG) as well as being published on the ELEXON website.
Please note that the reporting months are the two prior to the current month, based on a combination of latest and best available data.