Carbon Accounting & GHG Inventory Services
Accurate carbon accounting is the foundation of credible sustainability reporting, Net Zero planning, and regulatory compliance. RSustain builds GHG inventories aligned with the GHG Protocol Corporate Standard and ISO 14064-1.
What We Deliver
Scope 1 & 2 Inventories
Direct emissions from owned or controlled sources and indirect emissions from purchased energy. Aligned with GHG Protocol and using current DEFRA/BEIS emission factors.
Scope 3 Value Chain Emissions
Upstream and downstream emissions across the 15 GHG Protocol Scope 3 categories. Supplier data collection, spend-based screening, and activity-based calculations for material categories.
Calculation Notes & Evidence
Every calculation is documented with source data, conversion factors, assumptions, and methodology notes — ready for assurance review or auditor inspection.
Baseline & Target Setting
Establishing a robust base year, recalculation policy, and emissions reduction targets. Support for SBTi target-setting where applicable.
Standards & Frameworks
Our carbon accounting work follows the GHG Protocol Corporate Accounting and Reporting Standard and the GHG Protocol Corporate Value Chain (Scope 3) Standard. Where required, we also align with ISO 14064-1:2018 for quantification and reporting of GHG emissions and removals.
Related Services
Ready to Build Your Carbon Inventory?
Book a free scoping call to discuss your carbon accounting requirements.
Book a Free Call