Electricity Carbon Footprint Calculator

Convert your electricity use into CO₂ using your grid’s carbon intensity.

Result

CO₂ (kg/month)

110.0

CO₂ (kg/year)

1,320

CO₂ (tonnes/year)

1.32

How it works

CO₂ = kWh × grid intensity (≈ 0.05 to 0.80 kg CO₂/kWh)

The same kilowatt-hour can carry a very different climate cost depending on how it was generated. A grid dominated by hydro or nuclear emits around 0.05 kg CO₂ per kWh; the European average is near 0.25; the world average around 0.44; and a coal-heavy grid can reach 0.80 — a sixteen-fold spread. Multiply your monthly consumption by your grid’s intensity and the footprint appears: 250 kWh per month on the world average is about 110 kg of CO₂ monthly, roughly 1.3 tonnes a year. Two levers cut the number: use fewer kWh (efficiency, LED lighting, insulation) and make each kWh cleaner (green supplier, rooftop solar). The factors here are order-of-magnitude figures — your utility may publish the exact intensity of your local grid.

Advertisement

Frequently asked questions

What is grid carbon intensity?

The average CO₂ emitted per kWh generated, determined by the energy mix: hydro, nuclear, wind and solar are near zero; gas is moderate; coal is the highest.

Which grid type should I pick?

Choose the profile closest to your country’s mix. If your utility publishes an official kg CO₂/kWh figure, that is the most accurate reference.

What reduces my electricity footprint the most?

Efficiency first — LED lighting, efficient appliances, insulation. Then greener supply: a renewable tariff or your own solar panels shrink the per-kWh factor itself.

Advertisement

Related calculators