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A negative emissions power plant is now operational in Iceland

Sustainability

A negative emissions power plant is now operational in Iceland

The geothermal power plant in Hellisheidi, Iceland was outfitted with a Climeworks DAC module.


By David Malone, Associate Editor | October 16, 2017
The Hellisheidi power plant

Photo: Arni Saeberg

Climeworks, a Swiss cleantech company, has partnered with Reykjavik Energy to combine direct air capture (DAC) technology with safe and permanent geological storage for the first time ever. The result is the first negative emissions power plant in the world.

The EU-backed collaborative research project centers around one of the world’s largest geothermal power plants in Hellisheidi, Iceland. A Climeworks DAC module was installed on-site to capture CO2 from ambient air. The Climeworks technology draws in ambient air and captures the CO2 with a patented filter. Then, the filter is heated with low-grade heat from the geothermal plant to release the pure CO2.

 

Climeworks InforgraphicCourtesy Climeworks.

 

The captured CO2 is then bound to water and sent more than 700 meters underground. Once it reaches its underground location, the CO2 reacts with the basaltic bedrock and forms solid minerals to create a permanent storage solution.

 

A Basalt core containing carbonatesBasalt core containing carbonatesPhoto: Sandra O Snaebjornsdottir.

 

The project will test how the highly scalable technology works with the specific weather conditions at the location in southwest Iceland.

 

A Climeworks DAC modulePhoto: Climeworks / Zev Starr-Tambor.

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