Greenhouse Gas Emissions Data Assessment

Service summary

A review of an existing greenhouse gas inventory and its supporting information. The assessment examines boundaries, source coverage and the consistency of selected activity data, factors and calculations.

The service identifies discrepancies and evidence gaps for the inventory owner to address. It does not prepare the inventory or issue a formal emissions verification statement, carbon credit approval or carbon-neutrality certification.

Key objectives

• Assess inventory boundary consistency
• Examine activity data traceability
• Evaluate calculation and factor application
• Identify unsupported emissions information

Methodology

An existing inventory is reviewed against agreed accounting criteria using risk-based data sampling and selected recalculation checks.

• Define inventory period, boundaries, criteria and non-assurance scope.
• Review source coverage, methods, factors and documented assumptions.
• Select significant emission sources and uncertain data points.
• Trace activity data to source documents and responsible owners.
• Reperform selected calculations and examine factor applicability.
• Evaluate estimates, exclusions and unresolved reconciliation differences.
• Report data assessment findings without a verification opinion.

Key outcomes

References: [G04] · [G12]

• GHG data assessment report
• Source and boundary findings
• Calculation and evidence discrepancies
• Qualified inventory limitations