Battery Energy Storage Sites: Safety Regulations

Jim Shannon Excerpts

Thursday 5th June 2025 Commons Chamber

[John Milne]

I appreciate the right hon. Gentleman’s intervention. I agree that such sites can be in remote locations where there are fewer resources. As I will say later in my remarks, fire officer training is very much part of what I am recommending.

There is a strong case for mandating water-based suppression systems, off-gas detection, ventilation systems and thermal runaway mitigation as design conditions. Unfortunately, that is far from the case today. The guidelines for planning approval are imprecise and vary across the devolved nations. Currently, the burden of responsibility falls on individual local authority planning officers who have no specific training or background in lithium-ion technology—and why on earth would they?

For reasons that are hard to understand—perhaps the Minister can explain—fire and rescue services have not been made statutory consultees for planning applications. The current guidance states that applicants are “encouraged to engage” rather than required to do so, but even compulsory consultation is not enough by itself because the fire services themselves do not always have the expertise. Within the last fortnight, Henry Griffin, Suffolk’s deputy chief fire officer asked for fire services to be given new powers, saying:

“I’d like to see a power that is akin to a regulatory order like those for a commercial property, where we would have the power to enforce safety measures on those sites.”

He explained that the fire service is currently just a “contributing partner”, able to give “direction and professional advice”, but not necessarily to require what it might like.

The result is inconsistency, which is destructive both of public trust and of the success of the industry. In my own constituency of Horsham, the local planning authority has rejected a BESS application, while a similar site, just half a mile away, across the border in Mid Sussex, has won approval. Such inconsistencies show alarming parallels with Grenfell. The Grenfell disaster was the end result of many failings by both individuals and companies, but at heart it was a failure of regulation. The rules left things wide open for exploitation by cost-cutting developers, which is exactly what happened. Just as with lithium-ion batteries, a new technology—in that case cladding—was being used at scale for the first time, without proper understanding of the risks. The time to act is now because the number of BESS applications is expanding exponentially.

[Jim Shannon (Strangford) (DUP)]

I commend the hon. Gentleman for securing the debate. He is right to highlight the issues around lithium-ion batteries and thermal runaway; we are all reminded of explosions and fires in Liverpool in 2019 and in Kilwinning, in Scotland, in 2025. He referred to the need for legislation for the whole of the United Kingdom of Great Britain and Northern Ireland, but that needs to start here. Is it his intention to ask the Minister to confirm in her response that that will happen, so that the legislation can then fan out to Scotland, Northern Ireland and Wales?

[John Milne]

The hon. Gentleman is better acquainted than I am with the way that devolution works, but yes, I hope that the Minister will be able to set out whatever course of action is required to get to that point.

It is essential that we build battery energy storage sites to proper safety standards so that we do not find ourselves facing the need for a massively more expensive retrofit, with consequences for the entire energy network.

What accidents have there been so far? In September 2020, a fire at a BESS site in Liverpool created a significant blast and took 59 hours to extinguish. Merseyside Fire and Rescue Service said that the blaze on Carnegie Road

“appears to be the first significant fire of its type to occur within the UK”.

However, this was only a small BESS, with just four containers and a modest 20 MWh output in total.