Measurement, reporting and verification and accounting for carbon dioxide removal in the context of both project-based approaches and national greenhouse gas inventories
- 15 October 2024
- Industry Insights
- Policy & Regulation
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Samantha Neades
Citation: IEAGHG, "WHWL from Operational CCS Demo’s, Phase 1B", 2011-09, October 2011.
In 2009, the IEA Greenhouse Gas R&D Programme (IEAGHG) carried out an assessment of learning that is being provided by operational, large-scale, pilot, demonstration and commercial CCS projects around the world. This was undertaken by questionnaires and analysis of the responses and a report was published, presenting the results. Phase 1b was intended to be an addendum to the original report, gaining further information from projects on more specific topics within the subjects of well injectivity, regulation and public communication. In Phase 1b, twelve projects responded out of the twenty nine that were contacted. IEAGHG received 7 responses on well injectivity, 10 on regulation and 8 on public communication.
This additional consultation round provided IEAGHG with further information on some of the 29 originally identified operational large-scale projects.
The depths of the storage reservoirs at these particular sites vary from 600 to 3300 metres, with the reservoir thicknesses ranging from 5 to 90 metres. Most projects experienced higher injection rates than anticipated, with the average rate ranging from approximately 30 to 500 metric tonnes per day. Injection pressures vary with depth and hydrostatic gradient (as expected) and all agreed that injection test were invaluable for model calibration. Injection of CO2 has been successfully demonstrated at all projects.
Regulations and standards were found to be adequate, although many agreed that most demonstration projects are too small to come up against many significant issues with regulators. In order to maintain a good relationship with the community, regulations and standards should be coupled with practical community policies.
The careful planning of public outreach policies is crucial and the effectiveness of an informal approach with the public was emphasised. It was found that objections (from the local community) to a CCS project were unlikely if there are identifiable local benefits. Projects should aim to be the first to provide
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