pypsa-eur/README.md

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# PyPSA-Eur-Sec: A Sector-Coupled Open Optimisation Model of the European Energy System
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**WARNING**: This model is under construction and contains serious
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problems that distort the results. See the github repository
[issues](https://github.com/PyPSA/pypsa-eur-sec/issues) for some of
the problems (please feel free to help or make suggestions). There is
neither documentation nor a paper yet, but we hope to have a preprint
out by autumn 2021. We cannot support this model if you choose to use
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it.
PyPSA-Eur-Sec builds on the electricity generation and transmission
model [PyPSA-Eur](https://github.com/PyPSA/pypsa-eur) to add demand
and supply for the following sectors: transport, space and water
heating, biomass, industry and industrial feedstocks. This completes
the energy system and includes all greenhouse gas emitters except
waste management, agriculture, forestry and land use.
Please see the [documentation](https://pypsa-eur-sec.readthedocs.io/)
for installation instructions and other useful information about the snakemake workflow.
This diagram gives an overview of the sectors and the links between
them:
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![sector diagram](graphics/multisector_figure.png)
Each of these sectors is built up on the transmission network nodes
from [PyPSA-Eur](https://github.com/PyPSA/pypsa-eur):
![network diagram](https://github.com/PyPSA/pypsa-eur/blob/master/doc/img/base.png?raw=true)
For computational reasons the model is usually clustered down
to 50-200 nodes.
PyPSA-Eur-Sec was initially based on the model PyPSA-Eur-Sec-30 described
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in the paper [Synergies of sector coupling and transmission
reinforcement in a cost-optimised, highly renewable European energy
system](https://arxiv.org/abs/1801.05290) (2018) but it differs by
being based on the higher resolution electricity transmission model
[PyPSA-Eur](https://github.com/PyPSA/pypsa-eur) rather than a
one-node-per-country model, and by including biomass, industry,
industrial feedstocks, aviation, shipping, better carbon management,
carbon capture and usage/sequestration, and gas networks.
PyPSA-Eur-Sec includes PyPSA-Eur as a
[snakemake](https://snakemake.readthedocs.io/en/stable/index.html)
[subworkflow](https://snakemake.readthedocs.io/en/stable/snakefiles/modularization.html#snakefiles-sub-workflows). PyPSA-Eur-Sec
uses PyPSA-Eur to build the clustered transmission model along with
wind, solar PV and hydroelectricity potentials and time series. Then
PyPSA-Eur-Sec adds other conventional generators, storage units and
the additional sectors.
# Licence
The code in PyPSA-Eur-Sec is released as free software under the
[GPLv3](http://www.gnu.org/licenses/gpl-3.0.en.html), see LICENSE.txt.
However, different licenses and terms of use may apply to the various
input data.