The Enduring Auction Capability (EAC) is being designed to deliver co-optimised procurement for our day-ahead Frequency Response and Reserve products. It is envisioned that this method of procurement will allow us to meet our needs in the most efficient way, while enabling providers to participate in multiple markets.

In the future, this procurement method could extend to new services and products. This may require different algorithms for auctions at various regularity, such as intra-day, day-ahead, and so on.

We are eager to understand your views and so encourage you to contact us if you have any questions, feedback or would like to set up a meeting with the team.

Market information

Please find below information on previous events we have held for the EAC, including webinar recordings and slides available to download.

We have published an explainer document, which gives an overview of some of the elements of the market design, and contains some simple examples of the construction of basic sell orders.

Download the Market Design Explainer

You can also download our Q&A document which will be regularly updated. 

EAC webinar – 23 May 2023

On 23 May 2023, we held a webinar to update industry on the proposed sell-order design, a demo of the new UI, as well as project updates. Below you can find the relevant material shared during the webinar as well as an API quick start guide:

Download the webinar slides

Watch the webinar

Webinar Q&A

API Quick Start Guide

Detailed Market Design – 17 February 2023

On 17 February 2023, we held the second webinar to update industry on the progress we have made on the Detailed Market Design of the EAC project.

Download the webinar slides

Watch the webinar

Industry Webinar – 15 December 2022  

On 15 December 2022, ESO held the first webinar to update industry on the progress we have made on the High-Level Market Design of the Enduring Auction Capability (EAC) project, including the feedback we have received from industry to date. 

Download the webinar slides

Watch the webinar

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Read our May2023 update.