Lord Roborough (Con)

My Lords, Amendment 82B in my name would require the Government to evaluate and report on how this legislation affects the UK’s capacity for long-duration electricity storage. Clause 25 outlines the introduction of a scheme intended to stimulate investment in long-duration electricity storage. Yet, as with any initiative of this scale, we must pair aspiration with scrutiny. It is one thing to launch a scheme, but quite another to ensure that it is fit for purpose. We hear regularly that storage will solve the challenge of intermittent renewables. It is a reassuring narrative that excess wind and solar can simply be stored away, ready for when needed, but that message risks masking the scale of the task ahead. To get the facts straight, the UK’s average electricity consumption is around 780 gigawatt hours per day. Current grid-scale battery storage stands at roughly 12 gigawatt hours, enough to meet national demand for just 30 minutes. On a global scale, the picture is not much better. All the batteries in the world combined could keep the UK powered for less than a day. Storage is not futile. However, we must acknowledge that we are starting from a very low base. We must also ensure that any storage added to our energy infrastructure does not undermine grid stability and that it is available to release power in the timeframe needed. This could be seconds for battery through to hours for pump storage. My amendment seeks to ensure transparency. We need regular reporting to Parliament on whether the measures we are introducing are expanding our storage capacity at the pace required. Moreover, as we look to scale up these technologies, safety must be a central concern. My noble friend Lord Fuller rightly highlights the risks associated with high-capacity storage, particularly lithium-based battery systems. These systems often contain highly flammable materials and, when they fail, the consequences can be catastrophic. Fires involving lithium-ion batteries are notoriously difficult to control and demand vast quantities of water to extinguish. In rural areas, where many of these installations are proposed, access to that water is limited. Climate change and restrictions on the preventive burning of fuel load in wild environments are leading to greater wildfire incidence and severity. In urban settings, proximity to homes, schools and critical infrastructure raises additional risks. We must ensure that local fire services are not only consulted but properly resourced to assess and manage these risks. Any developer seeking to install large-scale storage must be required to engage with emergency services and contribute fairly to risk assessments and preparedness. We must also consider the environmental impacts. In the event of a fire, runoff containing hazardous materials could seep into groundwater or flow into rivers. This is not just a fire safety issue; it is a matter of public health and environmental protection. We cannot afford to be complacent. As our electricity system becomes more complex and decentralised, so too do the risks. It is the responsibility of this House to ensure that those risks are identified, assessed and addressed. Long-duration energy storage may be a useful addition to our energy mix. However, we cannot rely on this technology alone to support our renewable future.