Westenergy refines waste into district heat, electricity and recovered materials.
Westenergy’s primary task is to safely process municipal waste that is not suitable for recycling and to refine it into electricity, district heating, and recovered materials. Despite a challenging operating environment, we performed well in this task during the last year. In 2025, the operations of our waste-to-energy plant remained stable, with an availability rate of 94.7%. During the year, we produced 419 gigawatt-hours of district heating and 50.6 gigawatt-hours of electricity.
The energy transition became increasingly visible in Westenergy’s operations during 2025. Production was directed more strongly towards district heating in response to market conditions, and the district heating network, together with its heat storage facilities, increasingly served as a flexibility asset in the electricity market. As a result of the turbine’s 10-year maintenance at Westenergy’s waste-to-energy plant and the renovation of Vaasan Sähkö’s heat storage facility, electricity production remained at a historically low level. At the same time, district heating production increased, and customer needs were met reliably.
Sustainability and emissions-free operations are at the core of Westenergy’s strategy and are also key issues for our owners, business partners, and the entire Vaasa region. Westenergy’s long-term strategic goal is carbon-neutral energy production by 2030. In 2025, we continued to advance the carbon capture and utilisation project (ECCU) in a determined manner, as it is a key enabler for achieving this goal.
The FEED pre-engineering phase of the ECCU project was successfully completed during 2025. This planning phase has been crucial for the project, as it enabled us to confirm the plant’s technical concept and structure, design the details of the implementation phase, and prepare the key permitting processes required for construction. The Municipality of Korsholm granted the construction permit for the plant in December 2025. However, before an investment decision leading to construction can be made, certain regulatory and contractual matters still need to be resolved, and work on these issues continues actively. The carbon capture plant is planned to be commissioned in 2028, and once completed, it will be among the first full-scale carbon capture facilities in the waste-to-energy sector.
During the year, the development of waste utilisation and recycling also continued through the Ekoälyä project. The aim is to ensure that waste streams are directed as effectively as possible and support recycling as well as the efficient use of energy and materials. In addition, digitalisation and the development of information security towards ISO 27001 certification were actively promoted within the company in 2025.
Read more about Westenergy’s activities in 2025 in our online annual report at
https://2025.westenergy.fi
Olli Alhoniemi, Managing Director
Westenergy Ltd
olli.alhoniemi@westenergy.fi