家庭能源碳排放计算器
使用家庭能源碳排放计算器核算住宅用电、燃气和供暖产生的CO₂排放量。输入月度能源账单数据，获取各能源类型的碳排放明细和减排建议。
Total Annual CO2
7.05 metric tons
Total Annual CO2 vs Monthly Electricity
公式
How to Calculate Home Energy Emissions
Home energy emissions come from the fuels used to power and heat your home.
Emission Factors
Formula
Total CO2 = Sum of (Usage * Emission Factor) for each fuel / 2,204.6
计算示例
A home using 900 kWh/month electricity, 40 therms/month gas, no oil or propane.
- 01Electricity: 900 * 12 * 0.92 = 9,936 lbs CO2
- 02Natural Gas: 40 * 12 * 11.7 = 5,616 lbs CO2
- 03Total: 15,552 lbs / 2,204.6 = 7.06 metric tons/year
常见问题
What is the biggest source of home emissions?
For most US homes, electricity and natural gas heating are the two largest sources. Switching to renewable electricity can cut home emissions by 40-60%.
How does the electricity emission factor vary?
It depends on your regional grid mix. Coal-heavy areas exceed 1.5 lbs/kWh while hydro-heavy regions may be below 0.2 lbs/kWh.
Does a heat pump reduce emissions?
Yes. A heat pump is 2-4x more efficient than direct combustion, significantly cutting heating emissions especially with cleaner grid electricity.