End-Use Savings Shapes Measure Documentation: Advanced Rooftop Unit Control

Research output: NRELTechnical Report


This technical report documents the Advanced Rooftop Unit Control End Use Savings Shapes (EUSS) measure, including providing a description of the technology, modeling methods, and the energy savings calculated from applying the measure to applicable across the US commercial building stock using ComStock to quantify its potential. Advanced rooftop unit controls (ARC) generally consist of a supply fan VFD, and controls to implement demand controlled ventilation (DCV) and air-side economizing, as a retrofit to improve energy efficiency of existing rooftop units (RTUs).
Original languageAmerican English
Number of pages41
StatePublished - 2024

NREL Publication Number

  • NREL/TP-5500-89117


  • ComStock
  • energy efficiency
  • HVAC retrofit
  • packaged unit


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