How carbon capture and storage became a decisive climate solution

“The need for CCS is huge – and the potential is huge. As we increase the scale and lower the costs – while the CO₂ taxes increase – the market will work. This gap will keep getting smaller,” says Torbjorg Fossum, vice president for global CCS solutions at Equinor.

Recently it became known that Norway has landed its first commercial agreement on carbon capture and storage. The large fertiliser company Yara will buy space to store the emissions from their factory in the Netherlands on the Norwegian continental shelf – and increased CO₂ taxes mean that this will be very profitable for them. In other words, Norway has started selling solutions for handling CO₂ to the world.

This is happening through the Northern Lights project, a collaboration between Equinor, Shell and TotalEnergies.

Norcem's cement factory in Porsgrunn will also transport and store its CO₂ through Northern Lights. Here, Aker Carbon Capture is building the world's first carbon capture facility of its kind. This will annually remove 400,000 tonnes of CO₂.

“If the world is to reach the goal of net zero emissions by 2050, we must remove between 7 and 9 billion tonnes of CO₂ a year. In other words, the need for CCS is enormous – and now the market is following suit because it is starting to pay off commercially,” says Emil Yde Aasen in Aker Carbon Capture.

What is today considered a crucial solution in the energy transition originated on a trip to a cabin in 1986. Sintef researcher Erik Lindeberg was visited by colleague Torleif Holt – and loose talk turned into a professional discussion. The conversation focused on a topic they were both concerned with: how to deal with the CO₂ from gas extraction. What if you were to place the carbon dioxide back where it came from – in other words, re-inject it below the seabed?

The petroleum researchers received funding from Statoil to investigate the idea more closely.

Ten years later, the early ideas and their further development led to Statoil and partners, for the first time, pumping CO₂ from natural gas onto a platform and into the bedrock in the North Sea.

This happened at the Sleipner field and was a result of the gas containing too much CO₂ to be sold – combined with a recently introduced CO₂ tax. In 2008, the same technology was used in the Snøhvit field.

The seabed off the coast of Norway is well suited for CO₂ storage. There is room for CO₂ equivalent to more than 1,000 years of Norwegian emissions. This will become an important storage space for other European countries as well.

“We are very lucky to have a unique storage capacity in Norway. In addition, we have the expertise and experience from oil and gas, which we can now use to develop and build the CCS infrastructure,” says Fossum.

Although the experiences from Equinor have been good, not everyone has welcomed the concept. It has been argued that it is just an excuse to be able to continue using fossil fuels.

But CCS should in no way replace renewable energy, Fossum emphasises. Rather, the technology is an important part of the toolbox for industries that are too energy demanding to be electrified. CCS will also become central to decarbonising, for example, the cement and steel industry, where CO₂ emissions from the production process must be handled.

“We must do everything we can to increase the production of renewable energy. But it will not be enough to bring the world down to zero emissions by 2050, which the UN Climate Panel also acknowledges. CCS is also an important part of the solution,” Fossum states.

If we are to achieve the pledged climate goals, developing new markets for low-carbon solutions is also crucial – both in Norway and in the rest of the world. Equinor actively contributes to developing these markets and aims for a leading position in the European CCS market.

In the UK Equinor is developing the hydrogen plant H2H Saltend – which, with the help of carbon capture and storage, will decarbonise the surrounding industry.

In the US Equinor is investigating the possibilities of developing CCS and hydrogen plants in collaboration with U.S. Steel.

On the Norwegian continental shelf, in addition to the Northern Lights project, Equinor is developing the CO₂ storage facilities Smeaheia in the North Sea and Polaris in the Barents Sea. In the long term, Smeaheia will be able to receive as much as 20 million tonnes of CO₂ per year.

Together with Belgian Fluxys, Equinor is also looking at the possibility of a separate CO₂ pipe that will transport CO₂ from industry in Belgium to the Norwegian seabed. A similar collaboration has also been established with Wintershall DEA to assess the possibility of a CO₂ pipe from Germany.

It can reduce transport costs by as much as 50 percent compared to what the market offers today. But for that to become a reality, it needs to be large-scale. Equinor is therefore working with several European industrial clusters to collect enough volumes for the CO₂ pipe to become a reality.

• Carbon capture and storage (CCS) is a technology that can capture and store more than 95 percent of the carbon dioxide emissions (CO₂) from the production of electricity and industrial processes – thus preventing the emissions from escaping into the atmosphere.
• The use of CCS in the cement and steel industry can also significantly reduce emissions since this sector accounts for 14 percent of the world's CO₂ emissions.
• The European Commission has CCS as one of seven focus areas to achieve the goal of a climate-neutral Europe in 2050.