Incentivizing Advanced RTU Control Retrofits
This toolkit includes resources to assist utilities and efficiency programs in understanding and incentivizing advanced RTU control retrofits. Reference guidance on various considerations including a decision tree on when to retrofit units, RTU inventory and evaluation checklists, procurement specifications, case studies, and M&V methods.
TOOLSThis decision tree guides the reader through the challenging task of determining how to manage existing rooftop units with easy to follow evaluation questions and links to additional resources for more information.RTU Inventory Spreadsheet GuidanceUse the RTU Inventory Spreadsheet to gather basic information (i.e., number, size, age, condition, etc.) about your RTUs. Use the detailed fields to gather additional information (i.e., controls, usage patterns, features, etc.) for additional analysis of the RTUs identified for retrofit, replacement, or further analysis.Advanced RTU Controller Specification SpecificationThis specification lists potential important features and best applications for advanced rooftop unit controllers.RTU Measurement and Verification Guidance Fact SheetThis fact sheet explains the variety of benefits from rooftop unit (RTU) replacements by validating energy and cost savings and other improvements through measurement and verification (M&V) methods.JC Penney pursued a pilot program for RTU variable frequency drive (VFD) technology. Following the successful pilot program, JC Penney retrofitted 1,330 rooftop units in 130 stores with the VFD solution and reported saving $5 million and 48 million kWh, a 22% reduction from before the VFD retrofit.