The ERA reviews the Frequency Co-optimised Essential System Services (FCESS) Offer Price Ceiling values at least once every 3 years. The FCESS Offer Price Ceilings are set for the 5 FCESS markets – Contingency Reserve Raise, Contingency Reserve Lower, Rate of Chance of Frequency (RoCoF) Control Service, Regulation Raise and Regulation Lower - and present the highest price that these services can be offered in the respective FCESS markets.
The ERA indexes the Energy Offer Price Ceiling each month.
2026 Review
The ERA published its draft determination on 23 March 2026. The consultation period closed on 21 April 2026. After considering stakeholder feedback, the ERA published the final determination on 21 May 2026.
2023 Review
The ERA published its final determination on 21 September 2023, after considering stakeholder feedback.
Prior to that, we published our draft determination on 18 July 2023. The consultation period closed on 15 August 2023 and we received 4 submissions on the draft determination (available to view below).