Enel X and Threefold Energy partner to maximise the value of commercial batteries

London, 21 September 2026: UK businesses stand to see greater savings from their on-site batteries, and the grid more support at peak, under a new partnership between Threefold Energy Group (“Threefold”) and Enel X – the energy flexibility division of Enel group. Under the agreement, Enel X will provide market access and optimisation across Threefold Energy’s Optima platform¹ (“Optima”) and commercial battery portfolio, with Threefold participating in grid services that help meet the UK network’s need for greater optimisation.

Through the 5-year term of the agreement, Enel X will act as Threefold Energy’s exclusive capacity market access and optimisation provider for the sites covered by the agreement. The first phase of the contract is built around an estimated 3.5 megawatts (MW) of behind-the-meter (“BTM”) capacity, which the two companies aim to bring live within the first 12 months. The ambition is to scale participation across Threefold’s rapidly growing fleet, potentially unlocking 100MW or more². 

Enel X will use its VPP Connect platform to optimise Threefold’s Optima managed batteries across the UK’s grid services landscape. The integration is fully virtual, meaning no additional hardware on client sites, and no disruption to how asset owners operate their businesses.

By joining Enel X’s virtual power plant (VPP), Threefold Energy’s batteries can be enrolled into a broad range of eligible grid and energy market services. Enel X’s VPP Connect platform ensures each asset is optimised to perform at its best at any given moment, so customers see greater optimisations and services are delivered where the grid needs them most.

¹ Optima is Threefold’s core operating system. It separates when businesses draw electricity from the grid from when they use it - automatically shifting demand to optimise tariffs, reduce non-commodity costs and carbon, and simplify energy reporting.

² Capacity and term figures in this release are current estimates and ambitions, not commitments, and are subject to confirmation.

Threefold Energy is a distributed energy storage company that reshapes when businesses use electricity, cutting costs and emissions. Its behind-the-meter Optima platform stores electricity when it is cheap and dispatches it during expensive peak periods. Optima runs automatically with no change to operations, no solar required and is available to own outright or through As-a-Service with no upfront capital investment. Partnering with Tier 1 partners, Threefold operates across the UK, Europe and Southeast Asia.

www.threefold.energy 

Enel X, part of the Enel Group, helps businesses unlock value from their energy assets through demand response, virtual power plants and energy optimisation.

The Enel Group manages more than 11 GW of demand response capacity across over 16,000 sites in 14 countries. It operates in 27 countries, with more than 92 GW of generation capacity and electricity networks serving over 69 million end users.

www.enelx.com/uk/en