Louhintahiekka building Helen’s journey towards carbon neutrality

Louhintahiekka served as the main contractor for the K7 construction project. The scope included not only the construction of new pellet handling areas but also the conversion work on the old boiler plant. The work involved earthworks and new water and sewer systems, pile foundations for buildings, and construction work, including the pellet silo, receiving building, smokestack, fly ash silo, conveyors, vehicle scales, and concrete foundations for the old boiler building’s floors and equipment.

The most demanding part of the project, showcasing Louhintahiekka's special expertise, was the construction of the waterproof pile foundation excavation and excavation work near the sea. The basement of the building was located five meters below sea level, and construction proceeded upwards from there, says the project manager Aleksi Vipusaari.

The project's location within a tight, operational power plant area, which could not be disrupted, added additional challenges. The project involved numerous subcontractors, and Louhintahiekka, as the main contractor, was responsible for overseeing and coordinating their work.

The investment decision was made on a tight schedule, which meant the construction schedule was exceptionally stringent.

We worked in two shifts on weekdays and weekends for over two months. The timely completion of Louhintahiekka's work was critical to Helen's overall project timeline, says Vipusaari.