snakemake rules prepare approximations of the full model, for which it is computationally viable to co-optimize generation, storage and transmission capacities.
simplify_networktransforms the transmission grid to a 380 kV only equivalent network, while
cluster_networkuses a k-means based clustering technique to partition the network into a given number of zones and then reduce the network to a representation with one bus per zone.
The simplification and clustering steps are described in detail in the paper
- Jonas Hörsch and Tom Brown. The role of spatial scale in joint optimisations of generation and transmission for European highly renewable scenarios), 14th International Conference on the European Energy Market, 2017. arXiv:1705.07617, doi:10.1109/EEM.2017.7982024.