E-1A1a - Main Activity Electricity and Heat Production
This category can be further broken down for reporting purposes into emissions from:
1A1a.i- Electricity Generation1A1a.ii- Combined Heat and Power Generation (CHP)1A1a.iii- Heat Plants
Emissions¶
Tier 1¶
The tier 1 approach for stationary combustion is to estimate the entire fuel consumption for each type of fuel. This estimate is then combined with a default emission factor for each fuel type.
Emissions for public electricity and heat production are estimated as:
\[Emissions_{GHG,fuel} = Fuel \, Consumption_{fuel} \cdot Emission \, Factor_{GHG,fuel}\]
Where:
\[
\begin{array}{rll}
\text{Emissions}_{GHG,fuel} &=& \text{emissions of a GHG by fuel type} & (\text{kg GHG}) \\
\text{Fuel Consumption}_{fuel} &=& \text{quantity of fuel combusted} & (\text{TJ}) \\
\text{Emission Factor}_{GHG,fuel} &=& \text{default emission factor for GHG and fuel type} & (\text{kg} \, \ce{CO2} \, / \, \text{KJ})
\end{array}
\]
Total emissions for public electricity and heat production can then be calculate as:
\[
Emissions_{GHG} = \sum_{fuels} Emissions_{GHG,fuel}
\]
Tier 2¶
The tier 2 approach expands upon tier 1 by using country-specific emission factor(s) for each fuel type.
Tier 3¶
Emissions for public electricity and heat production are estimated as:
\[Emissions_{GHG,fuel,technology} = Fuel \, Consumption_{fuel,technology} \cdot Emission \, Factor_{GHG,fuel,technology}\]
Where:
\[
\begin{array}{rll}
\text{Emissions}_{GHG,fuel,technology} &=& \text{emissions of a GHG by fuel and technology} & (\text{kg GHG}) \\
\text{Fuel Consumption}_{fuel,technology} &=& \text{quantity of fuel combusted} & (\text{TJ}) \\
\text{Emission Factor}_{GHG,fuel,technology} &=& \text{default emission factor for GHG and fuel type} & (\text{kg} \, \ce{CO2} \, / \, \text{KJ})
\end{array}
\]
Total emissions for public electricity and heat production can then be calculate as:
\[
Emissions_{GHG} = \sum_{fuels} Emissions_{GHG,fuel}
\]