In this PR the following changes have been implemented :
Propane is added to the model as a carrier, an import node and a distribution node and a link for the national gas network is added for this carrier.
For the final demand queries: propane is added within the natural gas and derivatives group.
For the primary demand queries: propane is added within the natural gas and derivatives group.
Primary co2 emission queries: Propane is added within the natural gas and derivatives group.
For the graphs that do not calculate their queries based on final or primary demand (such as import/export graphs): Propane is added under “natural gas”.
For the multi year charts, propane is added under natural gas and derivatives.
For the co2-sheets: No changes were needed since the queries are based on network gas.
Furthermore at most places “share_of_natural_gas_in_gas_network” has been replaced by “share_of_fossil_gas_in_gas_network” where fit. At all places “share_of_greengas_in_natural_gas_network” has been replaced by “share_of_sustainable_gas_in_gas_network”.
For the final demand queries: propane is added within the natural gas and derivatives group.
A flat-profile output network gas output curve is added for the network gas production chart, based on the energy_distribution_propane node
In this PR the following changes have been implemented :