Westenergy refines waste into electricity, heat and recovered materials.
The new flue gas scrubber that is currently under construction at Westenergy’s plant will improve the plant’s purification system and take the Vaasa region towards a more carbon-neutral energy production. The project has proceeded in time and the most visible stage of the project, lifting the main equipment, is now taking place at the plant.
The highest part of the equipment – a 20 metres high scrubber tower, weighing some 20 tonnes, was lifted into the plant on Thursday morning on the 1st of August, 2019. Lifting the heaviest part of the equipment, a condenser weighing some 60 tonnes will follow – it will be lifted into the plant at the beginning of September.
Westenergy’s Production Manager Kai Alavillamo has participated intensively in the project from the very beginning. “These lifts are exceptional because they are carried out when all the constructions are ready. A large crane is needed for the challenging lifts because of the weight and height of the equipment. It can be very windy here in the coastal area and it is possible that we need to postpone the lifts if it gets too windy, Alavillamo explains.
The purification efficiency of Westenergy’s plant has been on a high level already before the scrubber, reaching 99 %. With the help of the scrubber, we will be able to reduce especially the amounts of acidic impurities such as hydrochloric acid and sulphur compounds in the flue gases. This is not, however, the only positive thing in the project: the new equipment will improve also the overall energy efficiency of the plant. Westenergy’s district heat production will increase by 20 percent and after the project, Westenergy will produce some 50 percent of the district heat needed in the area and Westenergy will operate more clearly as the basis for heating homes in the Vaasa region.
After the project, energy in the waste can be utilised more efficiently which will, in turn, reduce the need for fossil fuels in the district heat production in the Vaasa region. The CO2 emissions will decrease by approximately 13 percent for every megawatt-hour produced at Westenergy as the heat produced with the help of the scrubber doesn’t require new sources of energy. The change will take the Vaasa region one step closer to carbon-neutral energy production.