Natural Gas Carbon Tax (NGCT)

Rate of tax

  • From 1 May 2020 a rate of €5.22 per megawatt hour applies. This rate is based on a carbon charge of €26 per tonne of CO2 emitted when natural gas is combusted.
  • Previously, from 1 May 2012 to 30 April 2020, a rate of €4.10 per megawatt hour applied. This rate was based on a carbon charge of €20 per tonne of CO2 emitted when natural gas is combusted.

The rate of €5.22 per megawatt hour is based on net calorific value (NCV). Where the quantity of gas supplied is measured using gross calorific value (GCV), the GCV rate is calculated by multiplying the NCV rate by a conversion factor of 0.9028. This gives a GCV rate of €4.71 per megawatt hour.

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