PyPSA,PYPOWER
"Object-oriented, data stored in pandas DataFrames",Numpy integer-indexed arrays
Non-linear power flow,Non-linear power flow
Only linear OPF,Non-linear and linear OPF
Optimisation over multiple time points,Single time-point optimisation
"Generators, storage models, hydro, sector coupling",Just generators
Mixed AC-DC modelling,"Just AC, single synchronous area"
Conceived in Python,Port of Matlab-based MATPOWER