RCT Solutions GmbH and Wärtsilä have completed the establishment of their joint venture, Valo, marking an important milestone in the companies' shared commitment to the global battery energy storage market.

Joint Venture Transaction Completed

The announcement, dated 1 October 2026, confirms that the new entity has now begun operating as an independent company jointly owned by RCT Solutions and Wärtsilä.

The completion of Valo follows a joint venture agreement between the two companies that was announced in June 2026. With the transaction now closed, the venture moves from the negotiation and agreement phase into full operational status, giving the global battery energy storage sector a newly formed integrator backed by two established industry players.

Combining Complementary Strengths

According to the companies, Valo brings together two distinct sets of capabilities. From Wärtsilä's side, the venture draws on the company's established global energy storage capabilities, its technology, its customer base and its project expertise.

From RCT Solutions, the venture gains engineering expertise, vertical integration know-how, global supply-chain knowledge and industrial execution capabilities.

The companies state that, taken together, these strengths provide a solid foundation for serving customers in what they describe as the rapidly evolving utility-scale battery energy storage market.

The pairing of a technology and project delivery partner with an engineering and industrialisation specialist is positioned by the companies as the basis for Valo's offering going forward.

Focus on an Integrated Storage Platform

The newly formed company will focus on developing a strong and competitive global energy storage platform. The scope of that platform, as outlined by the companies, combines integrated battery energy storage system (BESS) solutions with manufacturing capabilities, intelligent controls and optimisation technologies, project execution and lifecycle support.

That combination places Valo across the full arc of a storage project, from the design and manufacture of the systems themselves through to the controls and optimisation layer that governs their operation, and further into ongoing lifecycle support after commissioning. The company's stated ambition is to serve the utility-scale segment of the battery storage market on a global basis.

What Valo means for RCT Solutions

For RCT Solutions, the establishment of Valo represents an important step in expanding its activities in battery energy storage. The company describes the move as building on its established expertise in renewable technology engineering, manufacturing industrialisation and global project execution.

At the same time, RCT Solutions has made clear that its involvement in the new venture does not change the shape of its existing business. The company will continue its existing operations, projects and customer activities independently, with solar PV manufacturing engineering remaining a core area of expertise. Customers and partners of RCT Solutions therefore continue to engage with the company directly on its standing activities, while the battery energy storage work shared with Wärtsilä is carried forward under the Valo banner.

A Milestone Following a June Agreement

The completion of the transaction arrives roughly three and a half months after the joint venture agreement was first announced in June 2026. That timeline, from agreement to an established, independently operating company, is presented by the parties as a completed step rather than an intention, with Valo now described as beginning operations.

The framing of the launch as a milestone in the companies' shared commitment to the global battery energy storage market underscores that both parties view the venture as a long-term platform rather than a single-project collaboration.

The companies' statement emphasises the "rapidly evolving" character of the utility-scale battery energy storage market as the backdrop against which Valo has been formed.

Two Parent Companies with Distinct Footprints

The structure of the venture places two companies with different histories side by side. Wärtsilä contributes what the announcement describes as established global energy storage capabilities, including technology, customers, and project experience, a profile associated with a company already active in delivering energy storage projects worldwide.

RCT Solutions contributes a complementary profile rooted in engineering, vertical integration, supply-chain knowledge and industrial execution, alongside its continuing core business in solar PV manufacturing engineering.

The venture's stated scope, integrated BESS solutions, manufacturing, intelligent controls and optimisation, project execution and lifecycle support, mirrors the two parents' profiles, pairing system integration and delivery with the industrialisation and supply-chain capabilities that RCT Solutions brings.

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