Cum se calculează Emissions Factor
Ce este Emissions Factor?
Emissions factors convert activity data (fuel burned, electricity used) to greenhouse gas emissions. They vary by fuel type, region, year.
Formulă
Emissions = Activity × Emissions Factor
Ghid pas cu pas
- 1Emissions = Activity × Emissions Factor
- 2Gasoline: ~2.3 kg CO₂/liter, electricity: 0.2-0.8 kg CO₂/kWh (regional)
- 3Factor varies with grid composition (coal heavy = higher)
Exemple rezolvate
Intrare
Drive 1000 km, car uses 5 L/100km, total 50 L fuel
Rezultat
50 L × 2.3 kg CO₂/L = 115 kg CO₂ emissions
Typical car trip
Greșeli frecvente de evitat
- ✕Using national average when regional factor available
- ✕Forgetting to account for upstream emissions
Întrebări frecvente
Why do electricity emissions vary by region?
Coal-heavy grids (high factor), nuclear/wind grids (low factor). US average ~0.4, coal region ~0.8 kg CO₂/kWh.
Are lifecycle emissions included?
Basic factors only include combustion. Full lifecycle includes extraction, production, transport.
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