ROLLS-Royce has commenced work on an engineering, procurement, and construction EPC contract from Voltaria Helios Energy Storage to build a large-scale battery energy storage facility in Falkirk.
This is the first large battery energy storage project by Rolls-Royce in the UK. The mtu EnergyPack, with a capacity of 86 MWh and an output of 43 MW – which is equivalent to the demand of around ten thousand homes or a large industrial site – will connect to the grid in 2026 and come online in 2027.
The facility will store electrical energy during periods of high renewable energy production and feed it back into the grid during peak demand. The battery storage will facilitate additional renewable generation by avoiding uneconomical turn-down of wind generation. Rolls-Royce will maintain the system for 15 years.
Nigel Jefferson, CEO at Voltaria, said, “The Bankside project in Falkirk is the first of many battery energy storage sites Voltaria intends to deliver and operate. Rolls-Royce were selected because we were impressed by their commercial and technical offering, as well as their technical advice and engagement in the run-up to the decision, and their 15-year full-wrap long-term service agreement. Rolls-Royce and the CATL battery solution are market leaders, and both stand for quality, so our expectations for the delivery and operation of this project are high. Rolls-Royce has also leveraged the Scottish supply chain, which is great to see.”
Andreas Görtz, president business unit mobile & sustainable at Rolls-Royce Power Systems, said, “As a European turnkey integrator, we foster the energy transition by delivering storage solutions – from system design and EPC delivery to intelligent control and lifecycle support. Our collaboration with Voltaria draws on all the experience we have gained in over 200 battery projects worldwide.”









