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Motor CO₂ Savings Calculator
Estimate the annual CO₂ reduction from upgrading to a higher-efficiency electric motor (IE3 → IE4 → IE5).
Annual energy saving: — kWh
Annual CO₂ reduction: — kg (— tonnes)
≈ equivalent trees/year: —
CO₂ = P · load · hours · (1/η₁ − 1/η₂) · factor
Lower emissions with efficient motors
Every kWh saved by a higher-efficiency electric motor avoids grid emissions. The default factor (~0.44 kg CO₂/kWh) is an indicative grid average — use your local factor for accuracy. See also our energy savings and consumption calculators.
Frequently asked questions
How is motor CO₂ saving calculated?
CO₂ (kg) = energy saved (kWh) × emission factor. Energy saved = P · load · hours · (1/η₁ − 1/η₂).
What emission factor should I use?
Use your country/utility grid factor in kg CO₂ per kWh. The default ~0.44 is an indicative average; it varies by year and energy mix.
How are equivalent trees estimated?
A mature tree absorbs roughly 21 kg CO₂ per year, used here only as a rough illustration.