Battery Energy Storage Sites: Safety Regulations

Charlotte Cane Excerpts

Thursday 5th June 2025 Commons Chamber

[Charlotte Cane (Ely and East Cambridgeshire) (LD)]

I draw the House’s attention to my entry in the Register of Members’ Financial Interests, as I am an unpaid director for Reach Community Solar Farm. I congratulate my hon. Friend the Member for Horsham (John Milne) on securing this important debate, and on his strong and comprehensive speech supporting the need for regulation. I have been impressed by all the speeches from across the House, as well as by the fact that every single one supported the motion. I hope the Minister has heard that and will urgently take the actions required.

I am proud of the Liberal Democrats’ consistent support for green energy and recognise the need for battery energy storage sites, so I am deeply worried that current practices cause concerns about safety, anger at lack of community involvement and little or no share of the profits coming back to the communities affected. A prime example of those problems is the vast Sunnica solar farm planned in my constituency, stretching through into West Suffolk. Community groups and parish, district and county councils all opposed the development. Their evidence convinced the planning inspector to recommend refusal, but within two weeks of joining the Government, the Secretary of State for Energy Security and Net Zero granted permission. Now it is down to the local authorities to decide on final details, including the battery energy storage sites for up to 500 MW.

The councils will have 14 working days from receiving details from the developer to consider whether they need further information, to share the application with consultees, to collate any requests for further information and then to return the questions to the developer. They must do that without any clear guidance or regulation on battery safety. They are advised to consult the fire service, and the fire service in turn has no battery safety regulations to refer to, just the guidance issued by the national fire chiefs. It will also be difficult, if not impossible, for meaningful public consultation to be fitted into that timetable.

The Liberal Democrats are calling for local fire services and the Environment Agency to be statutory consultees for BESSs so that they can advise on making the sites safe and on how to manage a fire should one break out. Local communities also need to be consulted, as they know best how the area is used, where the water courses run and what wildlife is present.

Fortunately, as we have heard, BESS fires are rare, but where they occur, they can last for several days. The water used by the firefighters in the Liverpool case combined with the chemicals given off by the batteries to create hydrofluoric acid. Ely and East Cambridgeshire has many interconnected water courses, from drainage ditches through to the River Great Ouse, as well as the internationally important Wicken Fen wetland site and other vital wetland sites. If those became contaminated with hydrofluoric acid, the damage to wildlife, especially in our rare chalk grasslands, would be enormous. We are also the breadbasket of England. Imagine the impact on our farmers and therefore our food supplies, not to mention the impact on the horse racing and horse breeding industries.

Our planning departments need clear regulation and relevant statutory consultees, so that they can ensure that BESSs are installed in the right locations and have the necessary boundaries, run-off catchments and so on to ensure that the fire risk is minimised and that, in the event of fire, people, crops, soils and nature are protected. DEFRA has stated that it will consult in June on integrating BESSs into existing environmental regulations. I would be grateful if the Minister could let us know when we can expect the consultation to open. Many BESSs are already operating, more have permission and yet more are applying for permission. Proper regulation and guidance are therefore urgent.

The Liberal Democrats want green energy to replace fossil fuels. Green energy reduces fuel poverty, gives the UK fuel security and is better for the environment. To be successful and reliable, green energy needs battery energy storage sites, but those storage sites must be safe, and that requires Government regulation and guidance and making local fire services and the Environment Agency statutory consultees.

[Madam Deputy Speaker (Caroline Nokes)]

I call the shadow Minister.