Carbon Savings Calculator
Calculate the CO₂ emissions avoided by using solar power instead of grid electricity.
Calculate
Enter your values below.
Result
CO₂ emissions avoided
0
Formula used
CO₂ avoided = Solar energy generated × Grid emission factor
Example: 6,000 kWh solar generated at a 0.4 kg CO₂/kWh grid factor → 2,400 kg CO₂ avoided.
How to use this calculator
- Enter Solar energy generated (kWh), Grid emission factor (kg CO₂ per kWh).
- Press Calculate to see your result instantly.
FAQ
Frequently asked questions
Where do I find my grid's emission factor?
National or regional energy agencies typically publish average grid emission factors, since they vary by country and energy mix.
Why does this vary so much by country?
Grids powered mostly by coal have much higher emission factors than those powered by hydro, nuclear, or renewables.
Is this the same as the carbon footprint of making the solar panels?
No — this only estimates emissions avoided from electricity generation, not the manufacturing footprint of the panels themselves.
How can I convert this to a more relatable comparison?
Many people compare CO₂ savings to equivalent car miles avoided or trees planted, using published conversion factors.