Westenergy refines waste into district heat, electricity and recovered materials.
The pre‑engineering for construction has covered, among other things, area and landscape planning, architectural design, structural design and building services engineering. This phase produced comprehensive plans and materials, which enabled us to apply for the construction permit from the municipality of Mustasaari. The construction permit was granted in December 2025.
Before an investment decision that leads to the plant’s construction can be made, there are still regulatory matters and key agreements that must be resolved. We are currently working actively on these. The goal is to begin construction of the carbon capture plant after the investment decision and to take it into use in 2028. Once completed, it will be one of the first full‑scale carbon capture plants in the waste‑to‑energy sector.
The pre‑engineering work has been carried out by Ramboll Finland Oy, which is part of the international Ramboll Group. The Danish unit, Ramboll Denmark A/S, acts as the construction management consultant for the project. We would like to thank Ramboll for the excellent cooperation.
Illustration of the carbon capture plant
Once the plant is operational, the carbon dioxide emissions in the flue gas of Westenergy’s waste‑to‑energy facility will decrease significantly, as the new plant unit will be able to capture up to 95% of the CO₂ in the flue gases.
The liquefied carbon dioxide is intended to be delivered for the production of synthetic fuels at Koppö Energia’s future plant in Kristiinankaupunki. The amount corresponds to the emissions from an estimated 1.18 billion kilometres driven by fossil‑fuelled passenger cars in Finland or about 431,000 return flights from Helsinki to Brussels.
Overall, the carbon capture and utilisation project supports industrial development in the Vaasa region, creates new investment opportunities, and promotes Finland’s goals for a sustainable circular economy.
If you want to read more about the project, please take a look at the articles we have published earlier by clicking the links below:
HAZOP workshop provided valuable insights for Westenergy’s carbon capture project