en.Wedoany.com Reported - Wärtsilä announced on June 15 that it has established an energy storage joint venture with Germany's RCT Solutions GmbH, with each party holding a 50% stake. New investors may be introduced in the future, at which point the equity structure will be adjusted, and the shareholding ratios of the founding shareholders will be correspondingly reduced.

The joint venture will integrate Wärtsilä's energy storage business, currently reported as a separate business segment. In 2025, this business unit achieved net sales of €694 million, with a profitability of 3.3%, and employed approximately 480 people globally.

Wärtsilä's energy storage business drives decarbonization in the energy market by providing utility-scale integrated battery energy storage systems (BESS) and optimization solutions. Its product portfolio encompasses hardware, intelligent control systems, optimization software, and comprehensive support throughout the project lifecycle.

Wärtsilä CEO Håkan Agnevall stated that upon completion of the joint venture transaction, Wärtsilä will partner with an experienced and capable company to operate an integrated energy storage business under challenging market conditions. RCT Solutions aims to become a global vertically integrated battery energy storage system company, and this transaction provides an excellent opportunity for Wärtsilä's energy storage business unit to enhance its competitiveness.

RCT Solutions CEO Peter Fath stated that the joint venture is a significant step toward building a more competitive global energy storage platform, combining Wärtsilä's technology, customer base, and project experience with RCT's engineering, vertical integration, and manufacturing capabilities. The focus is on enhancing competitiveness and accelerating profitable growth, positioning the joint venture as a global leader in battery energy storage. Peter Fath also expressed his pleasure in serving as CEO of this new joint venture after the transaction closes.

The transaction is expected to close in the third quarter of 2026, subject to regulatory approvals, satisfaction of other customary conditions, and completion of financing arrangements.

Wärtsilä stated that the transaction is not expected to have a material impact on its performance upon completion. The joint venture will also benefit from guarantees already provided by Wärtsilä for existing contract projects.

The joint venture is expected to incur losses in 2026 due to lower recent order volumes and costs associated with transformation actions, particularly the write-down of capitalized R&D expenditures. The estimated impact on Wärtsilä's 2026 operating profit ranges from negative €40 million to €50 million, depending on the exact closing date of the transaction.

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