Constraint Breakdown Costs and Volume
Summary
NESO publishes constraint breakdown data showing costs and volumes of transmission system actions taken by the ESO. The dataset provides transparency on why specific system actions were taken, with tags that can be retrospectively updated. Data covers transmission network constraints only.
Why it matters
This transparency measure allows market participants to understand constraint patterns and costs, potentially informing investment decisions and locational choices. However, it remains backward-looking data rather than forward price signals that would efficiently allocate constraint costs to those who cause them.
Key facts
- •Covers transmission network constraints only
- •Tags can be changed post-event with dataset refresh
- •Published by National Energy System Operator
Areas affected
Related programmes
Memo
The publication consists of constraint breakdown information to provide additional transparency of why as ESO we are taking actions on the system. Please note that tags applied to actions can occasionally be changed post event and in this instance the information in this dataset would be refreshed to reflect the up to date information. The data is applicable to the transmission network only.