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Mammoth: a glimpse into the most advanced DAC+S facility steadily coming to life in winterly Iceland

In June this year, Climeworks announced the groundbreaking of its newest and largest direct air capture & storage facility, called Mammoth.

With a nominal CO₂ capture capacity of up to 36’000 tons per year when fully operational, Mammoth represents a demonstrable step in Climeworks' ambitious scale-up plan: multi-megaton capacity in the 2030s, on track to deliver gigaton capacity by 2050.

Today, around six months after construction started, we would like to share some updates and pictures with you showing how Mammoth is steadily coming to life.

The milestones that were achieved in the past months

With the harsh Icelandic winter just around the corner, Climeworks’ Mammoth project team is working tirelessly on bringing the plant to life – and great progress was made! The achievements include:

The cladding of Mammoth’s process hall was completed

The process hall is the building located at the center of Mammoth. Here, the captured CO₂ of the Mammoth plant will be conditioned prior to its underground sequestration. It will be purified and condensed before it is dissolved in water and sequestered underground by Carbfix, where it will turn into stone thanks to its mineralization method. The process hall will moreover host the plant control rooms, offices and a visitor center.

The first foundations for Mammoth's collector containers are up

Mammoth will consist of 72 collector containers that will capture CO₂ from the air (for comparison: Orca consists of eight collector containers), three of which are stacked together on one foundation.

The foundation of the maintenance hall is progressing well

In addition to the process hall, Climeworks' Mammoth will also have a maintenance hall onsite. The maintenance hall allows for more efficiency when maintenance work needs to be done and will store spare parts and tools.

Mammoth represents a demonstrable step in Climeworks' scale-up plan, moving its nominal capture capacity from thousands of tons to tens of thousands of tons per year. Mammoth is designed to further expand supply and provide engineering experience for Climeworks’ 10x scale-up steps.

Douglas Chan, Chief Operations Officer at Climeworks
ammoth is Climeworks’ second commercial DAC plant for permanent carbon dioxide removal and the largest one to date. It illustrates very well Climeworks' approach to spearheading the DAC industry: continuous acceleration while bringing to life the most rigorous operational standards. Reaching megaton by 2030 and gigaton by 2050 will entail multiple steps, and Mammoth is part of the foundation on which Climeworks will build its further expansion. Having joined Climeworks in September this year, I am very excited to help accelerate the company's journey to impact at scale.
Alexander Bischert, project manager of Mammoth
I am very proud of what the team achieved in the past months. The construction is going very well despite the cold temperatures. It is still a long way until Mammoth turns on its fans, and we have a lot of work ahead of us to keep our pace, but I am confident that the construction will continue to progress well. It is exciting to see Mammoth taking shape!

Take a look at more impressions of the construction site:

Foundation of the Mammoth's process hall
In October 2022, the Mammoth project team was still working on the foundation of the process hall (© ©2022, Climeworks)
In December 2022, the process hall cladding was completed and the whole Mammoth site is taking shape
The roof of the process hall is coming together
Process hall cladding almost completed!
The Mammoth project team completed the cladding of the process hall in time before Christmas!

From Arctic Fox to Mammoth:

Arctic fox

Arctic Fox

Our first facility in Iceland marks the beginning of carbon dioxide removal through direct air capture.

Capricorn

Capricorn

This plant is the first of its kind: it is Climeworks' first direct air capture plant on an industrial scale.

Climeworks' Orca plant

Our plants

Located in Iceland, Orca is the world's first large-scale carbon dioxide removal plant.

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