SCCS infographic map digital 1607 01

A new study of “clusters” of industrial facilities in Scotland supports recent advice to the UK Government that a focus on delivering shared transport and storage infrastructure can greatly reduce the cost of achieving deep cuts in the UK’s carbon emissions.

The analysis published by Scottish Carbon Capture & Storage (SCCS) shows how re-using existing natural gas pipelines, which pass close to centres of industrial activity, can reduce the cost of transporting captured carbon dioxide (CO₂) to geological storage sites already identified offshore.

Pale Blue Dot Energy welcomes the new report from SCCS

The UK’s Committee on Climate Change (CCC) recently set out a refreshed approach to delivering carbon capture and storage (CCS) in the UK, recommending an initial focus on one or two clusters of industry and the need to deal separately with investment in transport and storage infrastructure if a CCS network is to be established.

The SCCS study, which looked at CO₂ capture quantities, capture project costs and transport connection costs to storage for 13 industry and power facilities in Central Scotland, suggests that:

  • Scotland’s legacy of gas pipelines offers a way to reduce the capital cost of CO₂ transport from clusters of large-point sources, such as power plants, refineries and chemicals and cement manufacturers.
  • Specifically, the Feeder 10 gas pipeline could collect and transport between 3.5 million tonnes per year (Mt/yr) of CO₂, its basic capacity, and 10 Mt/yr of CO₂, its maximum capacity, captured from different Scottish industrial clusters.
  • The Grangemouth industrial complex has the greatest concentration of emissions and short connection routes to Feeder 10. Annually, it could capture and deliver around 2 million tonnes (Mt) of CO₂, with scope to increase that volume by 3.8 Mt/yr if Summit Power goes ahead with the proposed Caledonia Clean Energy Project.
  • A second collection network covering Fife and the upper Forth area could collect 1.7 Mt of CO₂ annually.
  • Around 80% of Scotland’s large-point sources of CO₂ emissions are within 40km of the Feeder 10 pipeline. Re-use of this pipeline would roughly halve the capital cost of transporting these CO₂ volumes from Central Scotland to St Fergus in the north east for connection to offshore storage facilities.
SCCS infographic pipeline digital 1607 02

The Scottish case study has a wider significance for the UK and Europe. The scenarios presented could provide around half of the CO₂ capture considered necessary by the CCC for a scaled roll-out of a developing UK CCS industry by 2035, which would deliver key learning and help to reduce costs further.

The Central North Sea has the largest and best understood CO₂ storage capacity in Europe; this has been shown to be ready for commercial development by recent projects [CO₂MultiStore and Strategic UK CO₂ Storage Appraisal Project]. Developing capture clusters along the eastern seaboard of the UK and reusing existing onshore and offshore pipelines can help commercialise this storage resource rapidly, with benefits for the environment and the economy from a new offshore CO₂ storage industry.

Dr Peter Brownsort, lead author of the study and SCCS Scientific Research Officer, said: "The UK has a pressing need to clarify its pathway to decarbonisation under the terms of our 2008 Climate Change Act and, more recently, from our commitment to the Paris Agreement on climate action. The findings of our work support recommendations made recently by the Committee on Climate Change, which is calling on the UK Government to develop a new strategy for CCS in the UK immediately.

"Our study shows that it is possible to capture and transport significant amounts of CO₂ from industrial clusters in Scotland right now, with known technology and by converting existing infrastructure. The presence of existing pipelines, both on and offshore, available for reuse can bring direct savings to CCS projects. This unique advantage, combined with the huge CO₂ storage potential in the Central North Sea, makes a strong case for initiating a CO₂ capture cluster and transport network in Scotland, which could lead to commercialisation of a new offshore CO₂ storage industry serving the UK and Europe."

The SCCS paper, Reducing costs of Carbon Capture and Storage by shared reuse of existing pipeline – case study of a CO₂ capture cluster for industry and power in Scotland, is published in the International Journal of Greenhouse Gas Control. To obtain a copy from SCCS, please email Peter Brownsort.

Infographics by @mj_dsgn

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