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Ecolink — A model example
of circular collaboration

The Ecolink project is a strong example of how cross-industry collaboration can lead to smart and sustainable ways of utilizing resources. In collaboration with the energy company Skellefteå Kraft, we’ve made it possible for waste heat from Boliden Rönnskär to benefit even more district heating customers.

For many years, waste heat from Boliden Rönnskär has been recovered through the district heating network serving Ursviken and Skelleftehamn. However, during parts of the year, the network has lacked the capacity to receive all of the available waste heat, resulting in energy losses. To better harness waste flows and contribute to a more circular energy system, we launched the joint Ecolink project with Skellefteå Kraft in 2022. The goal was to connect the district heating systems in Skellefteå and Skelleftehamn – a project completed at the end of 2024. 

“For us, Ecolink represents our ambition to be an important player in the circular economy. The surrounding society can benefit from waste heat from our production, rather than seeing that energy go unused,” says Linn Andersson, General Manager at Boliden Rönnskär. 

Through the Ecolink project, two district heating networks have been connected – allowing waste heat from Boliden Rönnskär to be utilized by even more people. Cost-effective, circular, and sustainable!

CO₂ emissions reduced by 25,000 tonnes 

Another benefit of the connection is increased reliability in the Ursviken and Skelleftehamn networks in the event of unexpected disruptions. The additional availability of waste heat from Boliden Rönnskär also makes it possible to replace the use of peat at the bioenergy plant at Hedensbyn. This results in a reduction of CO₂ emissions by approximately 25,000 tonnes per year – equivalent to around 1,300 round-the-world flights. 

“The project ensures a smaller carbon footprint, while also benefiting our district heating customers. That’s the beauty of Ecolink – everyone wins,” says Ulf Hedqvist, Head of Heat at Skellefteå Kraft. 

 

 

Circular flows enable the green transition 

Of the total SEK 400 million investment in Ecolink, 150 million was funded through Klimatklivet – a national investment program for local and regional climate initiatives. Just like us at Boliden, Skellefteå Kraft is driven by the conviction that the green transition is accelerated by creating circular flows – where the surplus from one industry becomes a valuable resource for another. And they’re equally convinced that cross-organizational and cross-industry partnerships are key to making it happen. 

“In our operations, we’re now putting much more focus on recovering as much heat as possible. For example, we’ll be capturing heat from cooling processes in our new electrolytic plant. And we have a long list of opportunities for further recovery – in which we’ll continue our strong collaboration with Skellefteå Kraft,” says Linn Andersson. 

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Boliden Head Office

Boliden Group
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