KiCad vs PowerWorld Simulator

KiCad is a free, open-source electronic design automation suite for schematic capture and PCB layout. Its electrical rules checker flags schematic connection issues such as output-pin conflicts, missing drivers, and unconnected pins. For board routing, the PCB editor offers collision-highlight, shove, and walkaround modes that respect design rules. An integrated 3D viewer displays board designs with a library of 3D models and supports ray tracing. Schematic netlists can be exported as Pspice, Cadstar, PcbNew, or generic XML. KiCad can import schematic work from Altium tools, CADSTAR, EAGLE, EasyEDA, and LTSpice, as well as PCB designs from a wider range that includes Allegro, Fabmaster, P-CAD 200x ASCII, and SolidWorks. The project aims to serve professional designers while staying approachable to new users. Downloads are listed for Windows, macOS, and Linux, plus Docker; the stable Linux release is an x86-64 AppImage. Most source code uses GNU GPL version 3 or greater, and libraries use CC-BY-SA 4.0. KiCad was first released in 1992 and is managed by the KiCad Development Team.

PowerWorld Simulator is desktop software for interactively simulating high-voltage power-system operation over periods from minutes to days. Its full package solves power-flow systems of up to 250,000 buses. The base package provides contingency analysis with automatic batch processing, full power-flow or fast linearized analysis, and result views organized by contingency or impacted facility. Visualization includes animated diagrams, automatic diagram creation and modification, contoured displays, and a model explorer. Optional add-ons cover ATC, OPF, SCOPF, reserves optimization, SimAuto, transient stability, GIC, and integrated topology processing. SimAuto allows an external program to extend Simulator. The product lists industry-standard file-format compatibility and GIS support. It runs on 64-bit Microsoft Windows 7/Server 2008 R2 and newer; no other operating systems are supported. A free evaluation version is limited to 13 buses. The first commercial base-package license costs $11,000 as a one-time purchase and includes one year of upgrades and support.