H2 export

[Constable1819]

For my scenarios, I want to export 10TWh of hydrogen in that year. This is what I did:

policy_config:
hydrogen:
temporal_matching: "no_res_matching"
spatial_matching: false
additionality: false # RE electricity is equal to the amount required for additional hydrogen export compared to the 0 export case ("reference_case")
allowed_excess: 1.0
is_reference: false # Whether or not this network is a reference case network, relevant only if additionality is true
remove_h2_load: false #Whether or not to remove the h2 load from the network, relevant only if is_reference is true
path_to_ref: "" # Path to the reference case network for additionality calculation, relevant only if additionality is true and is_reference is false
re_country_load: True # Set to "True" to force the RE electricity to be equal to the electricity required for hydrogen export and the country electricity load. "False" excludes the country electricity load from the constraint.

export:
h2export: [10] # Yearly export demand in TWh
store: true # [True, False] # specifies whether an export store to balance demand is implemented
store_capital_costs: "no_costs" # ["standard_costs", "no_costs"] # specifies the costs of the export store. "standard_costs" takes CAPEX of "hydrogen storage tank type 1 including compressor"
export_profile: "constant" # use "ship" or "constant"
ship:
ship_capacity: 0.4 # TWh # 0.05 TWh for new ones, 0.003 TWh for Susio Frontier, 0.4 TWh according to Hampp2021: "Corresponds to 11360 t H2 (l) with LHV of 33.3333 Mwh/t_H2. Cihlar et al 2020 based on IEA 2019, Table 3-B"
travel_time: 288 # hours # From Agadir to Rotterdam and back (12*24)
fill_time: 24 # hours, for 48h see Hampp2021
unload_time: 24 # hours for 48h see Hampp2021

However, after my network is solved, this is whats shown:

no h2 export constraint set
INFO:main:no h2 export constraint set
INFO:pypsa.linopf:Total preparation time: 1.2s
INFO:pypsa.linopf:Solve linear problem using Glpk solver
INFO:pypsa.linopf:Optimization successful. Objective value: 4.30e+08

what am I missing?

[ekatef]

@Constable1819 thanks a lot for sharing your questions openly! Currently, the documentation is under active development for the sector-coupled modeling capabilities. Great to have a discussion on that!

Just to be sure that we are on the same page, are you using solve_all_networks or solve_sector_networks rule? The former triggers execution of a power-only model, while the latter runs the whole sector-coupled workflow which is required to deal with H2 exports