An independent commission to explore the potential for sustainable energy from the Severn Estuary

The final recommendations were published on 19th March 2025 to view them please click here

Severn Bridge crossing from England to Wales, at sunset.
Severn Bridge crossing from England to Wales, at sunset.

It has been known for some time that the Severn Estuary has huge potential for creating clean renewable energy. With one of the highest tidal ranges in the world, it has been estimated that it has the potential to create up to 7 per cent of the UK’s total electricity needs.

With the UK becoming the first major economy in the world to set legally binding commitments to reach net zero, local leaders, business and governments have stated a desire to have another look at the evidence to see whether there is a viable solution to harnessing this energy while protecting our area’s environment and assets.

Comprising a diverse group of experts from scientific, engineering, environmental backgrounds, this Commission will have the expertise and independence it needs to explore whether using the Severn Estuary to create sustainable power is attainable and viable.

Latest news

All the latest news and updates from the Severn Estuary Commission.

  • 19 March, 2025

    News

    Commission recommends UK Government act now to harness tidal energy  

    An independent commission of experts have recommended that the government “act now" to harness the UK’s huge potential for tidal range energy in the Severn Estuary.  The Severn Estuary Commission comprises of nationally and internationally recognised engineers, financiers, [...]

  • 20 December, 2024

    News

    December update from the Chair

    The Severn Estuary Commission have been busy engaging stakeholders across the country in preparation to deliver their recommendations to Government in March. In this blog, Andrew Garrad, Chair of the Commission, talks about what we've been working on [...]

About the Commission

The Commission will have an open remit to explore a range of options, including looking at what energy technology exists, funding and financing options, how the environment can be protected, social and economic factors, and many other topics.

The Commission’s objectives are to:

Potential

Determine the potential for sustainable energy in the Severn Estuary in the context of a Western Gateway energy system and the contribution it can make to a net zero economy;

Considerations

Understand the key considerations of the Severn Estuary in terms of its unique environment and importance to the Western Gateway area; and

Identify

Identify the key challenges and opportunities of developing sustainable energy in the Severn Estuary

To achieve its objectives, the Commission will engage with key stakeholders; commission research and analysis; and seek expert input, to determine a final recommendation. In delivering this, the Commission will be supported by a Secretariat and number of experts.

Severn Estuary Tidal Energy Schemes

Simplified illustrative map showing the Severn Estuary Tidal Schemes