Presets and sharing
Use the calculator safely
- Confirm whether your factor is stated as CO₂ or CO₂e.
- Check its geography, data year, source, and accounting method.
- Keep the electricity and factor units consistent.
- Use an approved factor and method for public, regulatory, or audited reporting.
Inputs
Results
- Estimated emissions (kg)
- —
- Estimated emissions (t)
- —
- Electric energy (Wh)
- —
- Electric energy (kWh)
- —
- Electric energy (MWh)
- —
- Emission factor (kg/kWh)
- —
- Emission factor (g/kWh)
- —
- Formula used
- —
- Input recap
- —
Relationship graph (approximate)
It is a straight line from electric energy (kWh) → emissions (kg) when the emission coefficient is fixed.
Assumptions & limits
- Depending on the emission factor assumption (kg CO₂/kWh), the results will vary greatly even with the same amount of electricity.
- Coefficient presets are example values for learning and UI confirmation. Official values/latest values are not guaranteed.
- This tool is for approximate purposes only. Use official calculation methods for regulatory, reporting, and compliance applications.
FAQ
What is an electricity emission factor?
It expresses the emissions associated with one unit of electricity, commonly in kg CO₂/kWh or kg CO₂e/kWh. The value depends on the grid, supplier or product, data year, gases covered, and accounting method.
Are the built-in factor presets official?
No. The low, medium, and high presets are illustrative values for learning and interface checks. For reporting, use a factor required by your supplier, regulator, inventory program, or organization.
What is the difference between CO₂ and CO₂e?
CO₂ refers only to carbon dioxide. CO₂e combines multiple greenhouse gases using their global-warming potentials. Use the same basis in the factor, result label, comparison, and report.
What is the difference between location-based and market-based Scope 2?
Location-based accounting generally uses the average emissions of the grid where electricity is consumed. Market-based accounting uses qualifying supplier, product, contractual-instrument, or residual-mix data. Follow the method required for your report.
Which emission factor should I use?
Start with the factor specified by the applicable reporting method. Prefer a value matching the electricity supplier or grid, geography, consumption period, gas basis, and accounting boundary. Record the source and data year.
Can renewable electricity always be entered as zero?
No. A zero factor is appropriate only when the applicable source and accounting method explicitly support it. Lifecycle factors can remain above zero, and market-based claims may require qualifying contractual evidence.
How to use Electricity CO₂ emissions calculation effectively
Choose the right factor
Start with the emission factor required by your supplier, regulator, or reporting method. Use location-based and market-based factors consistently; do not mix them in the same comparison.
Keep units explicit
Enter energy in Wh, kWh, or MWh and choose whether the factor is kg CO₂/kWh or g CO₂/kWh. The calculator converts units before multiplying, so a unit mismatch is easier to spot.
Compare scenarios
Run one baseline, then change only energy use, the factor, or the target emissions. The reverse modes estimate allowable energy use or the required factor for a target.
Reporting caution
Treat preset factors as examples. For reports, use the published factor for the electricity plan, region, inventory year, and CO₂ or CO₂e boundary you need.
Related tools
- Geology/Environment (Environmental Engineering (Diffusion/Chimney/Noise/CO₂))
- AQI: Measured value → index/class display (method selection)
- Gaussian plume diffusion (point source, stability, equal concentration)
- Noise: dB addition/distance attenuation (simple)
- Nutrient load (N/P): Concentration x flow rate x time → load amount