.. highlight:: rest .. _introduction: Introduction ============ This user manual explains how to install, and use EnergyPlusToFMU. EnergyPlusToFMU is a software package written in Python which allows users to export the whole building simulation program EnergyPlus as a :term:`Functional Mock-up Unit` (FMU) for co-simulation with `Functional Mock-up Interface` (FMI) for co-simulation `version 1.0 `_ Application Programming Interface. This FMU can then be imported into a variety of simulation programs that support the import of the :term:`Functional Mock-up Interface` for co-simulation. This capability allows for instance to model the envelope of a building in EnergyPlus, export the model as an FMU, import and link the model with an HVAC system model developed in a system simulation tool such as Modelica/Dymola.