Open mabijkerk opened 2 years ago
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Background According to the ETM documentation emissions are assigned to the sector energy is used in, rather than the location of emissions.
This means that by default the primary emissions of e.g. hydrogen produced by SMR are not allocated to the simulated country if all the hydrogen is exported. Consequently, the emissions should be allocated to the importing country, which is why the default carbon intensity for hydrogen import is nonzero (see below for a blank nl2019 scenario):
Problem For EU datasets we have set the carbon intensity of imported electricity and imported heat to 0 kg/MJ. This does not align with the standard way of calculating emissions in the ETM. Effectively this means that EU countries that import electricity get carbon-free electricity and we underestimate the emissions.
Solution If we want to add nonzero carbon intensity for imported electricity and imported heat the following points should be discussed:
What values to take?
Do we want to update nl2019 as well?
Should we implement a migration?
Which clients should be consult?
Notifying @AlexanderWirtz @marliekeverweij