Modelica Buildings Library 6.0.0 and BuildingsPy 2.0.0 Released

LBNL released the Modelica Buildings library 6.0.0, which is based on the Modelica IBPSA Library (, and it released BuildingsPy 2.0.0 that helps automating Modelica simulations and development.

The Modelica Buildings Library 6.0.0 is a major new release that contains various new packages, new models and improvements to existing models.

The following major changes have been done:

  • Various new packages have been added, such as:
    • A package for simulating occupancy and occupancy that resulted from IEA EBC Annex 66.
    • A package with models for geothermal borefields.
    • A package with blocks for control of shades and of outdoor lights.
    • A package with blocks that allow generating time series and scatter plots, and writing these plots to one or several html files.
    • A package with blocks for for unit conversion.
  • Various new control blocks have been added to Buildings.Controls.OBC.CDL to support OpenBuildingControl (see release also improves various existing models.

The library has been tested with Dymola 2019FD01, Dymola 2020, and with JModelica (revision 12903).

For a detailed list of changes, see

For more information and download, visit

The development sites are and


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