powerio

powerio parses power system case files into a typed Network, writes retained source text back to the same format, and converts between MATPOWER, PSS/E, PowerWorld, PowerModels JSON, and egret JSON. Display artifacts such as PowerWorld .pwd use parse_display_file instead of parse_file.

use powerio::{TargetFormat, parse_file};

let parsed = parse_file("case14.m", None)?;
let net = parsed.network;
let converted = net.to_format(TargetFormat::PowerModelsJson);
std::fs::write("case14.json", converted.text)?;

The workspace README covers the CLI, Python package, C ABI, matrix builders, and validation suite: https://github.com/eigenergy/powerio.