What is CarbFix?


At Carbfix, we have developed a process to capture and permanently dispose of CO2 – either from emissions or directly from the air (in collaboration with Climeworks).


The method provides a complete carbon capture and storage solution, where water with dissolved CO2 – a soda-water of sorts – is injected into subsurface favourable rock formations where natural processes transform the CO2 solid carbonate minerals within a couple of years. At Hellisheidi power plant, the Carbfix team has demonstrated that over 95% of CO2 captured and injected was turned into rock in the subsurface in less than two years. This contrasts the previous common view that mineral storage in CCS projects takes hundreds to thousands of years.

The process can be applied wherever favourable rock formations, water and a source of CO2 come together. Reactive rocks such as basalts are among the most common rock types on Earth, covering a significant part of continental surfaces and most of the ocean floor.

Altogether, the global storage capacity in such rocks is much larger than emissions from burning all fossil fuel available on Earth.

The Future of Carbfix

The Carbfix team is currently working on the following fronts, facilitating widespread, global application of the Carbfix method:

  • Linking the method to direct capture of CO2 from air, allowing for permanent removal of  CO2 already emitted to the atmosphere. This work is being done in collaboration with Climeworks under the EU funded CarbFix2 project.
  • Exporting the method to new injection sites in Iceland, Germany, Italy and Turkey under the scope of the EU funded GECO project. The field sites consist of varied geology; basalts, gneiss, sedimentary, and volcano-clastic/limestone.
  • Further developing the Carbfix method so that it can be used offshore for permanent mineral storage of  CO2 in the sub-seafloor.
  • Providing consultancy to businesses and industries wanting to apply the CarbFix process to reduce their emissions.

Our Story

Carbfix has been operating as an independent subsidiary of Reykjavík Energy since 2020.

Learn more about how we got started back in 2007.