Merus Power Plc (Finnish technology company) and Contemporary Amperex Technology Co., Limited (CATL) (battery manufacturer and technology company) have signed a strategic cooperation agreement covering the delivery of approximately 3 gigawatt-hours of battery energy storage system solutions to Nordic Europe, the Finnish company announced.

Extending a Three-Year Partnership

The new agreement builds on a collaboration between the two companies that has been underway for three years. During that period, Merus Power delivered approximately 500 megawatt-hours of battery energy storage solutions to Northern Europe using CATL's battery technology. The latest agreement represents a significant scaling of that work, targeting roughly six times the volume delivered under the prior arrangement.

Merus Power is a Finnish company whose capabilities in this collaboration include power electronics, grid inverter technology, cyber-secure control and protection systems, and system delivery. CATL, headquartered in China, is described by both parties as the global market leader in battery technology. The combined offering pairs CATL's battery cells with systems designed, developed, and manufactured by Merus Power in Finland.

Addressing Northern Europe's Grid Flexibility Needs

Both companies framed the agreement in the context of increasing demand for grid flexibility and renewable energy integration across Northern Europe. The region's ongoing electrification and the expansion of renewable generation are cited as key drivers behind the growing need for large-scale energy storage infrastructure.

Kari Tuomala, CEO of Merus Power, described the agreement as central to the company's broader strategic direction. "At the core of Merus Power's strategy is solving the critical infrastructure challenges of the energy transition," Tuomala said. "Electrification and the growth of renewable energy are rapidly increasing the need for flexibility, grid stability, and reliable energy storage solutions."

Tuomala emphasized the relevance of locally developed technology to the regional market. "The combined solution meets the demanding weather, grid, and cybersecurity conditions of Northern Europe," he said, noting that Merus Power's project development expertise, Finnish-manufactured technology, and secure software are integral to the offering.

CATL's Regional Strategy

Hank Zhao, Managing Director of Western Europe at CATL, said the agreement reinforces the company's long-term commitment to the Northern European energy storage market.

"CATL's leading battery technology and experience in demanding energy storage applications combine with Merus Power's strong local system expertise, grid inverter technology, and delivery capabilities," Zhao said.

Zhao added that the collaboration is expected to support the deployment of what he described as high-quality, safe, and reliable battery energy storage solutions and to accelerate renewable energy integration and the broader energy transition in the region.

Finnish Manufacturing at the Core

A recurring theme in both companies' statements is the role of Merus Power's Finnish manufacturing and engineering base in making the combined solution suitable for Northern European conditions.

The company's grid inverter technology and cybersecurity-focused control systems are positioned as differentiators that address the specific technical demands of the Nordic power grid environment, including climatic conditions and stringent cybersecurity requirements.

The announcement did not specify individual project sites or customers under the new 3GWh agreement, nor did it provide a timeline for delivery of the full volume. The agreement is described as strategic in nature, indicating a framework for ongoing collaboration rather than a single discrete transaction.

Recent Project Activity

The announcement of the CATL agreement follows other recent activity from Merus Power in the energy storage space. In March 2026, the company announced it would deliver a battery energy storage system of over 5 megawatts and 10 megawatt-hours to Savon Voima in the Finnish city of Kuopio.

The company also published a separate release in June 2026 describing its positioning among what it characterized as winners of the energy transition, though the details of that release were not provided in full.

The 3GWh target under the new CATL agreement dwarfs the cumulative 500MWh delivered over the prior three years of collaboration, pointing to expectations of a substantially accelerated deployment pace in the Northern European market.

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