Building Energy Software Tools Directory

The DOE Building Energy Software Tools Directory is in the process of being migrated. The information will be managed by an industry partner, the International Building Performance Simulation Association (IBPSA). To add your tool to the directory, submit requests to IBPSA at

This directory provides information on 417 building software tools for evaluating energy efficiency, renewable energy, and sustainability in buildings. The energy tools listed in this directory include databases, spreadsheets, component and systems analyses, and whole-building energy performance simulation programs. A short description is provided for each tool along with other information including expertise required, users, audience, input, output, computer platforms, programming language, strengths, weaknesses, technical contact, and availability.

Please read the disclaimer.

Also see Software Tools sponsored by the U.S. Department of Energy.