CO2 emissions (t)#
indexed by: asset, node, technology and test case
Description#
This indicator is used to analyse the CO2 emissions of every asset of the energy system over the entire optimization horizon. The emissions can be positive in the case of an asset that emits atmospheric CO2, or negative in the case of an asset that consumes atmospheric CO2.
From a modelling point of view, all assets except CO2_EMISSIONS are considered in this KPI, as CO2_EMISSIONS assets are modelling assets only used to add a price on the CO2 and to enable the supply-demand balance for the atmospheric CO2 on every node of the system and at each timestep.
Modelling hint
Atmospheric CO2 emissions and atmospheric CO2 consumption due the reserve activation (balancing) are not calculated by this KPI.
Calculation#
All the equations below are valid for any realization and are therefore implicitly indexed by test case. Index Technology is directly deduced from the asset.
Let be \(x_{a, n}\) the value returned by this KPI for a given asset \(a\) and node \(n\). We can then express \(x_{a, n}\) as :
In the equation, \(co_2\) is used for the atmospheric CO2 (as it is modelled such as an energy).
Global variables and parameters notations definitions can be consulted here.
Indexing#
The asset index refers to the name of the asset
The node index of this KPI refers to the node in which the asset emits atmospheric CO2 or consumes atmospheric CO2
The technology index refers to the technology type of the asset
The test case index corresponds the test case of the realization variables and parameters are taken from