Voltwise significantly strengthens battery storage platform through the acquisition of the BESS business of Smart Metering Systems (“SMS”)

460MW of BESS assets in operation and under construction across the UK
23 June 2025

Voltwise has signed and closed a transaction to acquire the Battery Energy Storage System (BESS) division from SMS; which brings 460MW of BESS assets in operation and under construction across the UK.  

The acquisition sees Voltwise significantly increase its UK footprint, marking a key step in the Company’s growth strategy to become a leading, BESS-focussed, Independent Power Producer across Europe. The combined business includes operating, construction and development assets and is supported by a strong suite of capabilities.

The portfolio comprises seven operating BESS projects with capacity of 320MW / 350MWh, four projects under construction with a capacity of 140MW / 280MWh and a number of development assets expanding Voltwise’s existing pipeline.

Russell Alton, Voltwise CEO, commented: “I am delighted that we have concluded a transaction to grow our business in alignment with our strategic ambition. This marks an exciting moment in the evolution of our business at Voltwise, delivering a platform that is well placed to drive future expansion and profitable growth across our key jurisdictions.”

Voltwise’s focus is on developing, owning and operating BESS projects in the UK and Germany to provide much needed energy system support and stability, at a time of significant renewables build out.

Voltwise is wholly owned by Sandbrook Capital, a private investment firm dedicated to transforming the world’s energy infrastructure.

About Voltwise Power

Voltwise Power is a newly formed developer, owner, and operator of utility-scale battery energy storage systems across select geographies in Europe. The Company was founded in 2023 and is headquartered in London, UK; with European offices in Munich and Berlin, Germany.

www.voltwisepower.com  

‍About Sandbrook Capital

Sandbrook Capital is a private investment firm dedicated exclusively to partnering with world class management teams to build great companies that are crucial to transforming the world’s energy infrastructure. The firm was founded by five partners with decades long experience in the renewable energy sector.

https://sandbrook.com/  

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