NatPower UK has announced plans to invest more than £10 billion in delivering a large-scale portfolio of battery energy storage and grid projects across the United Kingdom, marking a major investment in the country’s energy infrastructure sector.

The company is currently developing 13 battery energy storage assets with a total capacity of 12.5GW (gigawatts), with 10 of these projects under assessment for regulator Ofgem’s (Office of Gas and Electricity Markets) Long Duration Energy Storage Cap & Floor Window 1 process.
UK’s Largest Storage Facility on the Horizon
Among these projects, the most prominent is the 1GW Teesside GigaPark located at Sembcorp’s Wilton International site in the Teesside region. NatPower UK states this will become the UK’s largest and most advanced battery storage facility, specifically designed to support grid balancing and port electrification.
Beyond the Teesside project, other storage schemes are strategically located at key hubs across the country, including Yorkshire, Wales, the Midlands, and the South East regions.
Grid Infrastructure Simultaneous Upgrade
In addition to battery storage systems, NatPower UK will invest in new 400kV substations and transmission infrastructure, aimed at resolving grid bottlenecks and reducing the financial and resource demands on the network.
Driving UK Energy Transition
NatPower UK Chief Executive Stefano Sommadossi stated: “With 12.5GW and 100GWh of battery storage in development, NatPower UK is delivering the infrastructure Britain needs to decarbonise at pace.”
He emphasized that the company’s storage fleet is future-proofed with forward-thinking design. Unlike the vast majority of current developments, these facilities allow for long-duration storage and full augmentation capabilities. “It doesn’t just cut carbon, it reduces energy costs, eliminates inflation, strengthens the grid and ensures consumers and communities benefit from the clean energy transition.”
This large-scale investment plan will provide critical storage infrastructure support for the UK to achieve its net-zero emissions targets, while also demonstrating the private sector’s confidence and commitment to Britain’s energy transition.