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Case study

Entr supports carbon-negative power generation project in Sweden

Entr was awarded a contract by Nordbex to carry out engineering studies for its carbon-negative power generation project in Sweden. 

Nordbex 1, Nybro
Sweden, SE4
December 2023 - ongoing
The challenge

Trees are vital for climate regulation, absorbing and storing CO2 over centuries. A responsible forestry and timber industry is essential to ensure that the CO2 sink is maintained and grown. Currently, waste from forestry activities represents some 13% of the world’s carbon emissions.

By converting forestry waste into biofuel, Nordbex set out on a mission to deliver a distributed and replicable bioenergy solution with carbon capture and storage that will support the need for both affordable power and carbon removal.

The project is set up to:

  • Utilize biogenic feedstock from local forestry and industries for carbon negative power generation.
  • Capture and sequester up to 200,000 tonnes of CO2 p.a.  
  • Create a replicable solution.

Project economics for BECCS units typically operate on fine margins and energy efficiency, with heat integration being a key lever for profitability. Adding to the challenge is the requirement for a wide operating envelope, including multiple modes which need to be designed for, both in steady state and mode transition.

Nordbex tasked Entr to examine the integration of standalone technologies, in a unique configuration, ensuring key drivers were addressed well, including modularization, standardization, and value chain integration.

When you’re breaking new ground and want to achieve a real impact, you need the best in the world by your side. That’s why we have chosen Entr to support our journey.
Thomas Öström
CEO, Nordbex
Our solution

We developed an approach to explore and maximize value for heat integration, replicability, and export connectivity for the facility leveraging a range of technologies configured in such a way to optimize power generation, energy recovery, and carbon dioxide removal.

The approach was fit for purpose, and the engineering effort was aligned to match the development needs with flexibility, addressing specific technology and integration requirements including gasification, power generation, carbon capture and liquefaction.

The study was executed by our teams in London, Oslo, and Bergen, to ensure access to experts in a lean and flexible manner. Underpinning successful delivery was a highly collaborative approach adopted by both Nordbex, Entr and the nominated technology providers. One team, focused on delivering the right solution well.


We developed an energy efficient design, integrating distinct technologies enabling the plant to operate under a wide range of operating scenarios. Due to the high level of energy integration and cost effectiveness requirement, this was challenging, however through close co-operation with technology providers and subject matter experts, solutions were developed and continue to be matured.

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