Short Term Operating Reserve (STOR) day ahead buy curve
Summary
NESO publishes the buy curve for daily STOR auctions under Clean Energy Package 6.9. This replaces the previous weekly STOR procurement with daily auctions. The buy curve determines the price NESO will pay for different quantities of short-term operating reserve.
Why it matters
Daily STOR auctions price flexibility services more frequently, allowing providers to compete on actual daily requirements rather than weekly forecasts. This creates better price discovery for short-term balancing services, though the published buy curve likely reveals NESO's reserve valuation methodology to market participants.
Key facts
- •Daily STOR auctions under CEP 6.9
- •Buy curve published for daily assessment process
- •Replaces previous weekly procurement
Areas affected
Related programmes
Memo
As part of Clean Energy Package (CEP) 6.9, we will be running daily auction for procurement of STOR. The buy curve used in the daily assessment process is available here.