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Generator Emissions Calculator

Estimate CO&sub2;, NOₓ, and particulate emissions from your diesel generator. See the environmental impact and compare to everyday equivalents.

Daily Fuel
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CO&sub2; / Day
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CO&sub2; / Year
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Car Equivalent
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Generator Emissions Explained

Diesel generators produce several types of emissions during combustion:

  • CO&sub2;: Carbon dioxide — the primary greenhouse gas. 2.68 kg CO&sub2; per liter of diesel burned.
  • NOₓ: Nitrogen oxides — contribute to smog and acid rain. Stationary diesel engines emit 10–40 g NOₓ per kWh.
  • PM: Particulate matter — fine soot particles harmful to respiratory health. 0.2–0.5 g PM per kWh.
  • SO&sub2;: Sulfur dioxide — depends on diesel sulfur content. Modern ultra-low sulfur diesel (ULSD) produces minimal SO&sub2;.
Fuel (L/day) = kVA x 0.8 x Load% x 0.26 L/kWh x Hours/Day
CO2 (kg/day) = Fuel L/day x CO2 Factor (kg CO2/L)

The average passenger car emits 4.6 metric tons of CO&sub2; per year (US EPA). A 200 kVA generator running at 70% load for 12 hours daily emits the equivalent of dozens of cars annually.