JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. OpenBuildings™ Energy Simulator What is OpenBuildings Energy Simulator? Conceptual Design for Preliminary Simulation of Energy Performance Modeling Tools Global Changes Globally change window type in rooms of a zone Analytical Space Model (ASM) Energy Settings & Validation Shading Calculations Data Managers Calculations Utilities Using Project Data Parent topic: OpenBuildings Designer 2023 Help