P507 Balancing and Settlement Code (BSC) urgency decision
- Publication type:
- Code modification
- Publication date:
- Topic:
- Energy codes, Electricity supply, Electricity generation
- Subtopic:
- Balancing and settlement code (BSC), Market-wide half-hourly settlement (MHHS)
- Industry sector:
- Supply and Retail Market,
- Generation and Wholesale Market
Our decision to progress BSC Modification Proposal P507 'Reverting the legacy Half Hourly scaling factors in Market Domain Data to the pre-M10 values' on an urgent basis.
On 9 December 2025, Drax Energy Services Limited raised BSC Modification Proposal P507 ‘Reverting the legacy Half Hourly scaling factors in Market Domain Data to the pre-M10 values.
On 12 December 2025, the Chair of the BSC Panel wrote to inform us of the BSC Panel’s unanimous view that P507 (and its alternative) should proceed as an Urgent Modification Proposal.
On 15 December 2025, we issued a decision letter to Elexon stating that we agreed with the BSC Panel’s view to progress P507 (and its alternative) on an urgent basis.