Raised by @ecotillasanchez during our JOSS review:
It is clear from the paper and the examples that the analysis scales well from urban to national networks. For a power systems user, however, it would be good to clarify that building a transmission model with Calliope is different than a traditional power flow analysis (Ybus, generation, demand -> dc or ac power flow equations -> voltage magnitude and angles).
Similarly, perhaps note that the focus is power system planning (as opposed to operations).
Problem description
Raised by @ecotillasanchez during our JOSS review: