The IEEFA report, The Carbon Capture Crux – Lessons Learned, studies 13 flagship large-scale carbon capture and storage (CCS)/carbon capture utilisation and storage (CCUS) projects in the natural gas, industrial and power sectors in terms of their history, economics and performance. These projects account for around 55% of the total current operational capacity worldwide.

Author Bruce Robertson says seven of the thirteen projects underperformed, two failed, and one was mothballed. 

CCS technology has been going for 50 years and many projects have failed and continued to fail, with only a handful working. Many international bodies and national governments are relying on carbon capture in the fossil fuel sector to get to Net Zero, and it simply won’t work. Although some indication it might have a role to play in hard-to-abate sectors such as cement, fertilisers and steel, overall results indicate a financial, technical and emissions-reduction framework that continues to overstate and underperform.”

IEEFA’s study found that Shute Creek in the U.S. underperformed its carbon capture capacity by around 36% over its lifetime, Boundary Dam in Canada by about 50%, and the Gorgon project off the coast of Western Australia by about 50% over its first five-year period. 

The two most successful projects are in the gas processing sector – Sleipner and Snøhvit in Norway. This is mostly due to the country’s unique regulatory environment for oil and gas companies,” says Robertson. “Governments globally are looking for quick solutions to the current energy and ongoing climate crisis, but unwittingly latching onto CCS as a fix is problematic.”

Last week the Australian government approved two new massive offshore greenhouse gas storage areas, saying CCS “has a vital role to play to help Australia meet its net zero targets. Australia is ideally placed to become a world leader in this emerging industry”. 

IEEFA: carbon capture is not a solution

However, Robertson says, carbon capture technology is not new and is not a climate solution. “As our report shows, CCS has been around for decades, mostly serving the oil industry through enhanced oil recovery (EOR). Around 80-90% of all captured carbon in the gas sector is used for EOR, which itself leads to more CO2 emissions.” 

About three-quarters of the CO2 captured annually by multi-billion-dollar CCUS facilities, roughly 28 million tonnes (MT) out of 39MT total capture capacity globally, is reinjected and sequestered in oil fields to push more oil out of the ground.

The International Energy Agency says annual carbon capture capacity needs to increase to 1.6 billion tonnes of CO2 by 2030 to align with a net zero by 2050 pathway.

In addition to being wildly unrealistic as a climate solution, based on historical trajectories, much of this captured carbon will be used for enhanced oil recovery,” says Robertson.

History shows CCS projects have major financial and technological risks. Close to 90% of proposed CCS capacity in the power sector has failed at implementation stage or was suspended early — including Petra Nova and the Kemper coal gasification power plant in the U.S. Further, most projects have failed to operate at their theoretically designed capturing rates. As a result, the 90% emission reduction target generally claimed by the industry has been unreachable in practice. 

Finding suitable storage sites and keeping it there is also a major challenge – the trapped CO2 underground needs monitoring for centuries to ensure it does not come back to the atmosphere.

The report identifies interim considerations for CCS projects if no alternative solutions to emissions reduction are found.

  • Safe storage locations must be identified, and a long-term monitoring plan and compensation mechanism in case of failure developed.
  • The CCS project must not promote enhanced oil recovery.
  • To avoid project liability being handed over to taxpayers, as is currently the situation with Gorgon, large oil and gas companies mainly benefiting from CCS at their gas developments must be liable for any failure/leakage and monitoring costs of CCS projects, specifically if they get subsidies, grants and tax credits for capturing the carbon. 
  • It must not be used by governments to greenlight or extend the life of any type of fossil fuel asset as a climate solution.

Robertson says more research could be done on CCS applications in industries where emissions are hard to abate such as, cement, as an interim partial solution to meeting net zero targets. “As a solution to tackling catastrophic rising emissions in its current framework however, CCS is not a climate solution.” 

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