Wärtsilä to scale up engine production capacity in Finland by 35%

Technology group Wärtsilä will invest approximately EUR 140 million (USD 165 million) to further expand its production capacity by 35% at its technology centre, Sustainable Technology Hub (STH) in Vaasa, Finland and associated global supply chain.

This expansion will increase Wärtsilä’s industrial capacity and strengthen the capacity of the associated global supply chain, positioning Wärtsilä to meet growing market demand in energy and marine. The expanded capacity will enable Wärtsilä to deliver a higher volume of engines, and better support both customer needs and continued business growth long-term. The new production capacity will be installed within the STH facility expansion announced in April 2025 and is expected to be commissioned in the first quarter of 2028.

Wärtsilä President and CEO Håkan Agnevall, said: “Wärtsilä’s flexible and energy efficient engine technologies are increasingly the trusted choice for customers when addressing evolving power requirements. In parallel, shipowners are prioritising fuel flexibility and fuel efficiency to secure long-term competitiveness and compliance with evolving marine regulation. 

“By expanding production capacity at the Sustainable Technology Hub and the associated global supply chain, we are strengthening our operational readiness for further growth. Additionally, we are reinforcing Wärtsilä’s role as a long-term partner for customers in both energy and marine, supporting the evolving needs and advancing the decarbonisation of these industries.”

Photo credit: Wärtsilä
Published: 5 February, 2026