LONDON, April 2, 2026, 13:06 BST
Rolls-Royce Holdings plc has kicked off its inaugural large-scale battery storage project in the UK, breaking ground on a 43-megawatt (MW) installation at Falkirk, Scotland for Voltaria Helios Energy Storage. The new plant will be able to hold up to 86 megawatt hours (MWh) of power, with grid connection slated for 2026 and the start of commercial operations following in 2027. Rolls-Royce will handle maintenance for the facility over a 15-year span.
Timing is key here. Britain is targeting 23 to 27 GW of battery storage by 2030—right now the country has just 4.5 GW. The extra capacity is needed to steady a grid that’s scaling up wind and solar. That means storage is front and center in the government’s push to get new infrastructure up and running before the decade’s out.
Back in February, Rolls-Royce posted an underlying operating profit of 3.462 billion pounds on 20.059 billion pounds in revenue, bumping up its mid-term margin target to 18%-20%. The company pointed to Power Systems, citing a lift from data centre expansion and higher government demand. Reuters noted the revised margin brings Rolls-Royce shoulder-to-shoulder with GE Aerospace in the widebody space, while Richard Hunter at Interactive Investor called the numbers “sparkling.” Rolls-Royce
Voltaria CEO Nigel Jefferson called the Falkirk battery project just the start, with more sites lined up for construction and operation. He pointed to Rolls-Royce’s technical and commercial proposal as the deciding factor in awarding the contract. Over at Rolls-Royce Power Systems, Andreas Görtz, head of mobile and sustainable business, noted the company is tapping into its track record from 200-plus battery projects globally.
The grid remains the sticking point. The government’s Clean Power 2030 plan called for 80 network and enabling infrastructure projects, along with a fundamental shake-up of the connections process—moves officials claimed could unlock some 500 GW of network capacity and push through projects ranging from data centres to gigafactories at a faster clip.
The numbers stack up, at least on paper. According to the government’s 2025 security of supply report, 17 GW of battery projects have already secured capacity-market agreements and are supposed to be running by 2029. Another 35 GW or so has planning permission. Still, the report is clear: none of that happens without changes to grid connection rules and a bigger network.
This isn’t just about a battery project in Scotland. Back in February, Siemens bumped up its 2026 profit target after its data-centre segment jumped over 33%. Over at Siemens Energy and GE Vernova, executives told Reuters they’re booked out on big turbines for years, demand driven by AI’s hunger for power.
Battery storage development rarely goes smoothly. According to Reuters Events in February, European developers are still tangled in permitting holdups, grid-connection wait times, shifting market regulations, and even labor shortages. On top of that, Chinese suppliers are still the go-to for affordable tech on big projects, but that exposes developers to supply chain and policy uncertainty.
Reuters Events flagged in the previous month that rising data-centre demand is now attracting investment into longer-duration storage, despite lithium-ion batteries continuing to account for most new builds. That shift could mean the market Rolls-Royce is eyeing might end up busier and more competitive than the Falkirk project size implies.
