GHG Emissions Inventory Analyzer
Quantify and reconcile organizational GHG emissions across all scopes
What You Can Do
You can consolidate emissions data from multiple sources (utility bills, vehicle logs, supplier reports) and calculate Scope 1, 2, and 3 emissions using standardized emission factors from IPCC, EPA, DEFRA, and supplier-specific databases. Claude helps you reconcile data anomalies, identify high-impact reduction opportunities, and generate audit-ready documentation that explains methodology and assumptions for third-party verification and compliance reporting.
Features
Convert fragmented emissions data (multiple formats, units, time periods) into standardized inputs for consistent quantification
Match activities to verified IPCC, EPA, DEFRA, and supplier-specific emission factors with transparent traceability
Systematically categorize emissions across Scope 1 (direct), Scope 2 (purchased energy), and Scope 3 (value chain) using GHG Protocol definitions
Identify and explain year-over-year anomalies, data gaps, and outliers with documented root causes
Generate defensible inventory reports with assumptions, calculation methods, and data quality notes for audits
Extract high-impact decarbonization levers from inventory patterns and supplier breakdowns
Flag low-confidence estimates and recommend data collection priorities for future cycles
Example Output
Example 1: Scope 2 Reconciliation
- Electricity consumption normalized: 2,450 MWh (reconciled from 12 utility bills with varying billing cycles)
- Emission factor applied: 0.385 kg CO₂e/kWh (US average grid mix, EPA eGRID 2023)
- Result: 943 MT CO₂e Scope 2 emissions
- Variance from prior year: +8% explained by production increase and grid decarbonization offset
Example 2: Scope 3 Supplier Emissions
- Business travel data (487 flights, 156,000 km) × radiative forcing multiplier = 1,204 MT CO₂e
- Supplier emissions (Category 1): 5 suppliers provided actual data; 18 suppliers modeled using spend-based method = 3,842 MT CO₂e
- Methodology note: High uncertainty flagged for suppliers lacking primary data; recommend engagement for next cycle
Example 3: Inventory Report Summary
- Total Scope 1 + 2 + 3: 12,456 MT CO₂e
- Breakdown: Scope 1 (18%), Scope 2 (34%), Scope 3 (48%)
- Top reduction opportunity: Scope 3 business travel (27% of total) → electrified transportation and virtual meeting policies estimated to reduce by 35%
What's Included
- SKILL.md instruction file with GHG Protocol methodology reference:
- Emissions Data Template: structured input format for Scope 1, 2, and 3 activities
- Emission Factor Library: curated IPCC, EPA, and DEFRA factors organized by activity type
- Variance Reconciliation Checklist: step-by-step guide to identify and document anomalies
- Audit-Ready Report Framework: markdown template for third-party verification documentation
Who It's For
- Sustainability Managers — Building first-time baseline inventories and managing annual reporting cycles
- Environmental Compliance Officers — Preparing emissions data for SBTi, CDP, or regulatory audits
- Corporate Carbon Accountants — Consolidating emissions from multiple business units and suppliers
- ESG Reporting Teams — Quantifying material climate metrics for investor disclosures and public commitments
- Procurement Specialists — Validating supplier-provided emissions calculations and identifying low-carbon alternatives
Best For
- Establishing baseline GHG emissions inventories for the first time
- Annual inventory cycles with consistent data sources and established processes
- Reconciling year-over-year emissions changes and explaining variances greater than 10%
- Consolidating Scope 3 emissions from 50+ suppliers using spend-based or hybrid methodologies
- Preparing defensible documentation and methodology for third-party verification and regulatory compliance
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