The energy transition must be affordable, and the ESO Markets team is making sure that GB will achieve a fair, reliable energy future for all.

The ESO has a unique role in the development of market arrangements, from driving reforms across balancing markets to engaging industry to participate in the evolving markets of tomorrow. We aim to design market arrangements that facilitate security of supply at the lowest sustainable cost for consumers while enabling the transition to net zero.

Each year, our Markets team publishes several insightful reports, runs a range of innovative projects and hosts many interactive events to share their latest findings.

Whether you’re interested in the innovation underway in the ESO Markets team or are looking to brush up on market fundamentals, you’ve come to the right place. 


Net Zero Market Reform

Our Net Zero Market Reform project is holistically examining the changes required to unlock renewables and secure savings for consumers. The report details our recommendations for a high-level package of reforms.

Whole Energy Market Strategy (WEMS)

Our Whole Energy Market Strategy team was established in early 2024 to develop an independent view of cross vector market interactions, providing recommended solutions to tackling challenges, conflicts and inefficiencies to facilitate net zero.

Early Competition

Early Competition is a competitive process to select a bidder a solution or a specific need on GB's electricity transmission system. The process begins ‘early’, prior to the detailed design, surveying and consenting phases of solution development.

Stability Market Design

As more non-synchronous generation enters the system, the ESO needs to secure alternative sources of stability. We’re investigating the best option for an end-to-end Stability Market Design to enable an open, transparent and competitive market.


Markets Roadmap

The need to decarbonise the power sector is driving a fundamental shift in how stakeholders use and interact with the electricity system. The ESO’s annual Markets Roadmap sets out our ambitions, principles and process to transform GB’s markets.

Electricity Capacity Report

Our Electricity Market Reform (EMR) Modelling team measures the contribution that different technologies make to security of supply. Each year, they publish their modelling and provide annual recommendations in our Electricity Capacity Report.

Frequency Risk and Control Report

Published annually, this report includes an assessment of the magnitude, duration and likelihood of temporary deviations in system frequency, forecast impact and the cost of securing the system.

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Markets Forum and events

Our regular Markets Forum event details the work underway across ESO markets. Check out our latest webinars and the work we're undertaking to reform markets to support net zero for 2025 and beyond.

View our Markets Forum events

To see a list of our other markets engagement activity, visit the ESO calendar and filter for markets.

View our calendar

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Have a question or want to learn more? Learn who to contact on our Markets team.

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