Independent Verification of GHG Emissions for Installations Across a Major Gas Industrial City
An integrated national oil corporation developed and implemented an accounting and reporting system to monitor, control and reduce, where possible, greenhouse gas (GHG) emissions from companies operating in a major gas industrial city. This system covered direct emissions from carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) for onshore and offshore activities.
Annual, independent third party verifications of GHG emissions for each installation operating in the city were integrated into accounting and reporting systems to ensure transparency and accuracy of reporting. Verification was to be carried out in reference to the EU Commission Regulation on the monitoring and reporting of greenhouse gas emissions, in the context of the European Emissions Trading Scheme (EUETS). Laboratory, measurement and GHG training experts had to be available on an on-call basis.
SGS applied its GHG verification management system, which meets the requirements of ISO 14065:2007, Greenhouse gases — Requirements for greenhouse gas validation and verification bodies for use in accreditation or other forms of recognition. SGS is accredited, under this standard, to operate verification services under EUETS.
Within this management system, we followed the generic verification procedure to meet the requirements of ISO 14064-3:2006, Specification with guidance for the verification and validation of greenhouse gas assertions. We provided GHG emissions verification for five consecutive years.
Annual site visits were made to each installation to review:
- Metering points
- Site plans and schematics
- Continuous emissions monitoring schemes (CEMS) processes
- Calibration evidence
- Computer coding, where calculations were built into the software
- Data capture, collation and manipulation process
- Analysis of results and data
- Documented procedures
We issued annual verification reports and statements for each operating company.