Checks eGon100RE

[CarlosEpia]

Here I will post the results of the checks I do on the las version of the eGon100RE scenario.

[CarlosEpia]

We still have a 3% diff in total electricity demand. This should be fixed once a run including the branch #384 is finished.

[CarlosEpia]

Regarding generators here can be observed the capacities given by pypsa_eur vs the actual capacities in eGon100RE:

It is possible to observe 4 different problems:

• A very small difference in run_of_river: 46MW (1,7%). I would say we can ignore this difference
• pypsa_eur network has 1197 MW of oil generators, but eGon100RE has none. Already discussed here
• There are no uban_central_gas_gas_CHP generators. Due to the very small capacity could be neglected. -> see Checks eGon100RE #387 (comment)
• There are no rural_solar_thermal generators. Due to the very small capacity, it could be neglected. -> fixed in Fixes/#388 missing rural heat supply #390

[CarlosEpia]

Regarding links here can be observed the capacities given by pypsa_eur vs the actual capacities in eGon100RE:

It is possible to observe 4 different problems:

• There are 3625 rural_heat_pump links in eGon100RE, but all of them have p_nom = 0 and are not extendable. -> fixed in Fixes/#388 missing rural heat supply #390
• The total capacity of the central_gas_boiler links in eGon100RE in about 59 times the value given by pypsa_eur -> this is not a bug, see Checks eGon100RE #387 (comment)
• There are no rural_gas_boiler links in eGon100RE. -> fixed in Fixes/#388 missing rural heat supply #390
• There are no rural_resistive_heater links in eGon100RE. -> fixed in Fixes/#388 missing rural heat supply #390
• The carrier gas represented OCGT and CCGT. There are no links or gen for that. -> Features/#389 implement ocgt for e gon100 re #393

[CarlosEpia]

For storage_units we have:

[CarlosEpia]

For stores, we have:

[ClaraBuettner]

In district heating grids, gas boilers are used as a backup capacity. Therefore the size is derived from the total heat demand and is not matching the initial target value.
So the high installed capacity of "central_gas_boiler"-links is a desired feature, not a bug.

See the code here:

powerd-data/src/egon/data/datasets/heat_supply/district_heating.py

Lines 386 to 413 in 3f31c0c

	def backup_gas_boilers(scenario):
	"""Adds backup gas boilers to district heating grids.
	Parameters
	----------
	scenario : str
	Name of the scenario.
	Returns
	-------
	Geopandas.GeoDataFrame
	List of gas boilers for district heating
	"""
	# Select district heating areas from database
	district_heating_areas = select_district_heating_areas(scenario)
	return gpd.GeoDataFrame(
	data={
	"district_heating_id": district_heating_areas.index,
	"capacity": district_heating_areas.demand.div(100),
	"carrier": "gas_boiler",
	"category": district_heating_areas.category,
	"geometry": district_heating_areas.geom.centroid,
	"scenario": scenario,
	}
	)

[ClaraBuettner]

Regarding urban_central_gas_CHPs (links):
They are not existing in our dataset because of the very low installed capacity in pypsa-eur (<1MW).
The spatial allocation of CHP plants is done based on existing sizes of CHPs in MaStR. The smallest CHP that can be added is 10MW, so if the target value is smaller than that, no CHP is added.
To me it seems plausible to keep it like this since this very small CHP does not really make sense.

I derived this from this part of the chp-dataset:

powerd-data/src/egon/data/datasets/chp/small_chp.py

Line 166 in 3f31c0c

while additional_capacity > existing_chp.el_capacity.min():

[CarlosEpia]

All the problems mentioned in this issue are already addressed and seem to be corrected in model started on 07.02.25.