Version 4.2 unlocks Variable Refrigerant Flow and Ground Source Heat Pump systems. on the platform along with several quality of life enhancements. With v4.2 engineers can now filter all lists to more easily find items and name previous runs.

New Filter function is available for lists of Room Templates, Schedules, Air Systems, and Mechanical Plants

All tables, including inputs and results now have a locked header. This makes working with large projects even easier!

Full customization of VRF units, or Autosize!

Version 4.2 adds new high performance systems in VRF and GSHP. We have also taking on user feedback to improve the interfaces and workflows. In the drawing.tool users can now see more clearly which templates are default and which are custom, making assignment even easier.

Version 4.0 unlocks Ventilation Calculations on the platform along with several quality of life enhancements. With v4.0 engineers can now track their previous runs via Simulation History, view warnings direct from EnergyPlus that may be impacting their results, all with a quicker run time thanks to our server parallelization.

Version 4.0 opens up new reporting for engineers using the platform. For projects that require reporting of their ventilation calculations to authorities having jurisdiction (AHJ) or certifications like LEED can use the new Ventilation Calculation Reports. The Ventilation Calculation Tool also connects directly to the Load Model allowing engineers to size systems based on highly detail calculations! When running complex model, engineers now get actionable warnings direct from the EnergyPlus engine, reducing troubleshooting time significantly. With the Simulation History, the tedious task of tracking project performance over time is handled automatically!

Version 3.0 unlocks Mechanical Plant Sizing on the platform. Sizing for this final piece of mechanical equipment within a HVAC system provides the complete range of reports engineers need to select equipment and complete their designs! Mechanical Plants include Heating and Cooling types denoting the sources these plants can be assigned to on Air Systems.

Version 3.0 provides three level of result reporting: Zones, Air Systems and Mechanical Plants. This allow engineers to size the zone level equipment such as VAV boxes and FCU, central equipment such as AHU and DOAS, and central mechanical plants such as boilers and chillers. With an all-in-one solutions teams can deliever load results faster and proceed to other design tasks sooner. Automation built into the platform allows for early loads to be completed with ease, then as project progresses detail can be added to produce construction documentation level sizing reports!

Version 2.5 comes with a lot of additional functionality, performance and flexibility improvements for modeling Air Systems. Including 7 new Zone Terminal Units, 9 new Zone Equipment, 20 new Default Templates and several additional system control parameters. Air Systems are now modeled as Central or Local systems denoting if the system is a central air handling unit or a local piece of equipment such as a PTAC. Air Systems created before the release will need to be upgraded by bringing in a new Default template and removing the old system from a project. loadmodeling.tool v2.5 is now live for all projects!

Version 2.5 allows for a wide range of air-side equipment to be auto-sized with the platform. The Project Input Report closes the loop between results and inputs for design reviews and submissions. The automated early design workflow allows teams to get quick answers with high detail, but minimal clicks!

Version 2 comes with a lot of additional functionality and performance improvements to further improve the HVAC design experience. Of course since loadmodeling.tool is an online platform there is no software to download or file to upgrade, everything is live on your projects today!

Version 2 allows for even more sizing to completed directly in the platform and brings projects closer to completion.

If you are using the .osm and .idf files included with the Building Analysis Model export these have been upgraded to version 3.2.1 and 9.5 respectively. In order to work with these files on your local machine you'll need to install the 1.2.1 version of the OpenStudio application (don't worry this comes with the required version of EnergyPlus). You can access the latest version on openstudio.net.

Room results are now Zone results. This is a large part of the version 2 upgrade and aligns the tool with both standard practice and the functional behavior of EnergyPlus. When running the simulation rooms are assigned to zones, for which the result peak loads are reported. With the new Project Data Editor, zones can be explicitly defined as groups of rooms that make them up. If results are required in the a one zone = one room fashion, this can be accomplished by creating zones from rooms automatically.