We're going to be making this even better but there are some limitations on what measures are fully mapped. Our goal is to make this 100% automated so comments and questions are appreciated!

The .osm file is provided as-is and you will need to closely check all the inputs in OpenStudio. We have done our homework, but it is the engineer’s responsibility for the accuracy, completeness, or usefulness of the data within the model. Questions and support on OpenStudio need to be answered by the NREL team (we are not affiliated with OpenStudio). We will be upgrading the capabilities of this export, so we will update, revise or otherwise change the data exported in the .osm file from time to time. Documentation will be updated when that happens. Once it leaves our system to OpenStudio we cannot guarantee or endorse the results generated using the .osm file. You will want a licensed engineer or qualified energy modeler to check the results before using them.

Parameters Mapped

Roof R-Value

Envelope Heat Capacity

Wall R-Value

Wall Emissivity

Glazing U-Value

Ground Floor Area

Glazing SHGC

Fan flow control factor

Skylight SHGC

Daylight Sensors

Occupancy Sensors

Integrated Part Load Value


Total Occupants (Occupied Hours)

Lighting (Unoccu. Hrs)

System Type

Exterior Lighting Power (Watts)


Appliance Use

Ventilation Control

Appliance Use (Unoccu.)

Solar Panel Surface Area, Solar Panel Module Location, Solar Panel Module Type

DHW Gen, Hot water distribution system

Occupancy Schedule

Heat Recovery System

Heating/Cooling Setpoints

Parameters you will need to edit in OpenStudio

  1. Electricity/Natural Gas Utility rate - manually input these values

  2. SHW Collector - Functionality unavailable

  3. Metabolic Rate - Assigned based on the building type

  4. Blinds/Curtains/Shades - Customize the shading types inside OpenStudio

  5. Ground Floor and Below grade values - Customize these values

  6. Ventilation type - Based on System type selection

  7. People Outdoor Air rate/ Area Outdoor air rate - Autosized based on ASHRAE 62.1

  8. Domestic Hot water demand - Autosized based on people and schedules

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