Greenhouse Gas Calculator
Calculation tools and methodology guide based on 2006 IPCC Guidelines for National Greenhouse Gas Inventories
Energy Sector GHG Calculations
IPCC 2006 Guidelines - Volume 2: Energy sector emission calculation methodology and tools
IPCC Tier System
Tier 1
Data Requirements: National energy statistics + Default emission factors
Accuracy: Lowest
Complexity: Lowest
Small countries, categories with minimal contribution
Tier 2
Data Requirements: Country-specific emission factors + Detailed activity data
Accuracy: Medium
Complexity: Medium
Key categories in medium-capacity countries
Tier 3
Data Requirements: Detailed plant/vehicle-level data + Direct measurements
Accuracy: Highest
Complexity: Highest
Key categories with significant, complex emissions
Emission Calculator Tool
Stationary Combustion: Emissions from fuel combustion in fixed energy sources for electricity generation and industrial processes.