Concerning the modeling of CCS in TEMOA, with particular reference to the database US_1R_TS (
https://github.com/TemoaProject/oeo/blob/master/US_1R_TS.sql) I am facing some issues in understanding the correct meaning of some values associated to emission activities for technologies involved in the CCS chain. While those associated to electricity /hydrogen production technologies (E_BECCS_N, NG_SMR_CSS, E_NGACC_CCS_N, E_NGACC_CCS_ZERO_N
) clearly represent fractions of CO2 emissions avoided per PJ of burnt fuel thanks to CCS, which is the rationale behind the choice of values for CCS_EA_fuel (1.0), CCS_fuel_BLND
(1.0), CO2_Capture_fuel (-1.0) and CO2_Capture_ground (-1.0)?