LONDON, April 2, 2026, 13:06 BST
Rolls-Royce Holdings plc has started work on its first large battery storage project in Britain, a 43-megawatt (MW) facility in Falkirk, Scotland, under a contract from Voltaria Helios Energy Storage. The site will store 86 megawatt hours (MWh) of electricity, connect to the grid in 2026 and start operating in 2027, with Rolls-Royce set to maintain it for 15 years. 1
The timing matters. Britain says it needs 23 GW to 27 GW of battery capacity by 2030, up from about 4.5 GW now, to help balance a power system carrying more wind and solar generation. That puts storage squarely in the build-out the government wants finished this decade. 2
In February, Rolls-Royce reported underlying operating profit of 3.462 billion pounds on revenue of 20.059 billion pounds and lifted its mid-term target to an 18%-20% operating margin. It said Power Systems was benefiting from power generation growth tied to data centres and government demand; Reuters said the new margin range put Rolls-Royce in line with widebody rival GE Aerospace, while Interactive Investor’s Richard Hunter called the results “sparkling.” 3
Voltaria Chief Executive Nigel Jefferson said the Falkirk scheme was the first of many battery sites the company planned to build and operate, and said Rolls-Royce had won the work on the strength of its technical and commercial offer. Andreas Görtz, who runs the mobile and sustainable business at Rolls-Royce Power Systems, said the group was drawing on experience from more than 200 battery projects worldwide. 4
The grid is the snag. In its Clean Power 2030 plan, the government said it needed 80 network and enabling infrastructure projects and a radical overhaul of the connections system, changes it said could release about 500 GW of network capacity and speed projects from data centres to gigafactories. 5
On paper, the build-out looks possible. The government’s 2025 security of supply report said 17 GW of battery projects already had capacity-market agreements due to be online by 2029, with roughly 35 GW more holding planning permission, but it also made clear that the pace will hinge on connection reform and network expansion. 6
The fight for power infrastructure is broader than one Scottish battery site. Siemens raised its 2026 profit outlook in February after data-centre business grew by more than a third, while Reuters reported that executives at Siemens Energy and GE Vernova said they were sold out for years on large turbines as AI-led power demand surged. 7
But battery storage is not a straight line. Reuters Events reported in February that developers across Europe still face permitting and grid-connection delays, shifting market rules and labour shortages; it also said Chinese suppliers remain the only proven low-cost option for many large projects, leaving developers exposed to sourcing and policy risk. 8
Reuters Events reported last month that surging data-centre demand is now pulling capital toward longer-duration storage as well, even if lithium-ion batteries still dominate new deployments. That could make the market Rolls-Royce is targeting more crowded and faster-moving than the size of the Falkirk project alone suggests. 9
