Battery Energy Storage Sites: Safety Regulations

Sarah Bool Excerpts

Thursday 5th June 2025 Commons Chamber

[Sarah Bool (South Northamptonshire) (Con)]

I rise to speak on the looming crisis facing us in relation to battery energy storage sites. As Members have explained, the sites are beginning to play a larger and larger role in the transition to greener energy sources, but at the moment ideology is winning the day and pragmatism is disappearing.

There is over 78 GW of battery capacity that is either operational, awaiting construction having been approved or in the early stages of the planning process. For context, that is enough power to supply nearly 200 million homes at once, which is almost 10 times as many as we have in the UK.

One of the 1,100 installations that are proposed but not operational is a battery energy storage site just outside of Grendon in South Northamptonshire. It is part of the wider Green Hill solar farm proposal owned by Island Green Power, and I note the comments from the hon. Member for South Cotswolds (Dr Savage) on that. This proposal exposes how the Government are asleep at the wheel on this issue. The Green Hill BESS is a massive 500 MW site proposed for the edge of the town, just a few hundred metres from the centre and next to the beautiful Grendon lakes and the River Nene. On the border of a site of special scientific interest, the environmental importance and sensitivity of the site cannot be understated. The proposal is likely to come to the local planning authority eventually, which understandably has virtually zero experience in balancing the risks and benefits of a large-capacity BESS.

The Minister for Housing and Planning wrote to me this week after I raised with him several of the significant risks that the site poses to residents and the environment. He said that the current regulatory framework was “appropriate, robust and future-proofed”. The hon. Member for Horsham (John Milne) has already alluded to this comment. I am sure all Members will agree that that sounds rather good, but the title of the framework that the Minister spoke so highly of was “Health and Safety Guidance: Guidance for Grid Scale Electrical Energy Storage Systems”. Unfortunately for the Minister, he has exposed exactly what is lacking in our approach to BESSs. Our framework for regulating the design, construction, running and decommissioning of these sites is simply guidance. We have not gripped the potential threats of these sites and attempted to mitigate them.

Thankfully, there are examples of where countries have faced up to the need to recognise the threats. The United States is further along the path of rolling out BESSs than the UK. As we have experienced here, they have faced large-scale fires, explosions, environmental concerns and, understandably, a gap in expertise when it comes to the emergency response to the unique challenges. In response, they realised that guidance did not suffice, so they passed, as the Housing and Planning Minister sort of alluded to, an “appropriate, robust and future-proofed” statutory framework that did simple things. It required co-ordination with local fire services during the planning process. It specified minimum distances from residential buildings. It mandated elevation in flood-prone zones, and it enforced the training of the fire departments and first responders to give them the expertise that they need.

That framework is prescriptive, yes, but when it comes to the health of members of the public—health threatened by these sites in the ways that Members have articulated—we must be prescriptive. If we are not careful, much like a fire at a battery energy storage site, a fire will be lit that we cannot put out, and it will burn and burn. I ask that the Government immediately pause the roll-out of these sites until a proper regulatory framework is in place.