Energy Department releases Updated EnergyPlus and OpenStudio building energy modeling tools

May 2, 2018


The U.S Department of Energy (DOE) and the U.S. National Labs released updated versions of open-source whole-building energy modeling tools: the EnergyPlus engine and the OpenStudio software development kit (SDK) and application.

EnergyPlus 8.9.0 includes the ability to accept input in a JSON (Java Script Object Notation) format called epJSON. epJSON is derived from the existing IDF format and shares its object structure.

The JSON key-value structure supports schema validation as well as faster object and field lookups, and should make EnergyPlus schema evolution (e.g., the addition and deprecation of fields) simpler, DOE says.

Read More on BDCNetwork