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add dummy generator for glpk
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@lisazeyen
lisazeyen committed Mar 7, 2024
1 parent 573cad1 commit 709fd98
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13 changes: 13 additions & 0 deletions scripts/prepare_sector_network.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1752,6 +1752,19 @@ def adjust_endogenous_transport(n):
"land transport fuel cell": cost_FCE,
"land transport oil": cost_ICE,
}

# add dummy generator only needed for solving with glpk with higher solver tolerance
n.add("Carrier", "dummy transport", color="#dd2e23", nice_name="Dummy transport")
buses_i = n.buses[n.buses.carrier=="land transport demand"].index
n.madd(
"Generator",
buses_i,
" load",
bus=buses_i,
carrier="load",
marginal_cost=1e5,
p_nom=1e9,
)

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@FabianHofmann

FabianHofmann Mar 7, 2024

Contributor

can't this be covered by the already implemented load shedding instead?

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@lisazeyen

lisazeyen Mar 7, 2024 •
edited
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Could be, but the costs would need to be adjusted and it should be only applied to land transport nodes, since we want to make sure in the test that everything else is working.

It would be nice to reduce the solver tolerance with glpk to 1e-6 but that does not seem to be possible from the terminal. The thing is that with the endogenous transport we fix the profiles following the transport demand with p_max_pu and p_min_pu which seems to be numeric challenging if there is not an expensive dummy generator

for car_type, cost in costs_car_type.items():
car_i = n.links[n.links.carrier == car_type].index
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