Severn Estuary Commission finds potential for world's first tidal energy lagoon

In the United Kingdom, the Severn Estuary Commission has been exploring the feasibility of creating the world's first tidal energy lagoon over the past year. This commission, which has received input from over 500 experts, concluded that harnessing the Severn Estuary's tidal power could significantly boost economic growth and provide a reliable source of renewable energy. The tidal range in the estuary reaches 12 to 14 meters, which is among the largest in the world. Despite previous efforts to harness tidal power that failed due to lack of government support and environmental concerns, there is renewed optimism for a lagoon project. Dr. Andrew Garrad, the commission chair, emphasized the need for urgent public funding to advance this innovative renewable energy project. He stated that a tidal lagoon is essential due to the anticipated increase in electricity demand in the UK by 2050 and the potential longevity of the project, which could last at least 120 years. The commission suggested that governments should launch a commercial demonstration project backed by public investment to showcase the viability and assess environmental impacts. Environmental stakeholders have shown some support, favoring a lagoon over larger barrage proposals that could negatively impact the delicate wetland environment. However, there remain concerns from organizations like the RSPB regarding the risks tidal lagoons pose to wildlife. The existence of tidal lagoons in the Severn Estuary could also position the UK at the forefront of tidal energy innovation, which is currently underutilized compared to other renewable sources. The report has reignited discussions about the role of tidal energy in the UK’s energy strategy as well as the need for sustainable solutions that balance environmental protection and energy demands.