When analysing the M matrix in Exiobase v.3.8.2 for GHG emissions with 2019 as reference year, I realized there is a difference of one orders of magnitude between the "product by product" and the industry by industry" matrices, for the sector of Production of electricity by solar thermal in Spain. Is anyone aware of this ? Which could be the cause for such a difference ?
This is the code used with the pymrio package, where like='Electricity' when working with the pxp matrix:
exio3_2019.impacts.M.loc['GHG emissions AR5 (GWP100) | GWP100 (IPCC, 2010)']['ES'].filter(like='Production of electricity', axis=0)/1e06
This gives 30.122842 kg CO2 eq/€ for the matrix "industry by industry" and 3.027458 kg CO2 eq/€ for the matrix "product by product".
Thank you very much for yours insights ! Gonzalo