There are 1 repository under loadflow topic.
Convenient Power System Modelling and Analysis based on PYPOWER and pandas
An open source loadflow based on PowSyBl
A powerful 3-phase load flow solver, by Roseau Technologies
Python notebooks demonstrating PyPowSyBl features
Toolbox for power system analysis
Load Flow analysis in Scilab 6.0.0
MatPowerImport - MATPOWER case converter to RastrWin format
The algorithm uses the newton raphson method to obtain the states of the power system and also the power injection and flows using the Jacobian matrix (partial derivates of V and Theta). The program has two menus, one to choose the power system to analyze, and another one to show the solutions.