Wärtsilä plans to additionally expand the technical production capacity at its Sustainable Technology Hub (STH) in Vaasa, Finland, and across its associated global supply chain.

In a press release, the company said it would spend around €90 million to increase the hub’s capacity by 30 percent, with the start of operations scheduled for the first quarter of 2029.

Wärtsilä added that this investment will enable it to deliver higher volumes of engines, meet increasingly growing market demand in the energy and marine industries and better support customer needs and long-term business growth, as well as strengthen the capacity across the associated global supply chain.

“Demand in the energy and marine markets continues to develop positively, driven by rising electricity consumption and rapid data-center growth in energy, and by decarbonization regulation and the need for fuel efficiency and fuel flexibility in marine. Our customers turn to us for flexible and energy-efficient engine technologies to address their evolving power requirements,” said Wärtsilä President and CEO Håkan Agnevall.

“Our engines are recognized as a competitive technology for the future. This investment strengthens our ability to respond to the increasing demand, support our customers’ requirements and reinforce Wärtsilä’s long-term market position, while enhancing our global supply chain. It is an important step on our journey to shape the decarbonization of marine and energy.”

The latest expansion follows the 35 percent increase in technical production capacity announced in February, which is expected to be commissioned in the first quarter of 2028.

Combined, this will bring the total planned increase to 65 percent compared to the company’s 2025 technical production capacity.

Opened in 2022, the STH is a center for collaboration, innovation and partnership, serving as a cornerstone of the company’s plans to achieve carbon neutrality in its own operations by 2030.