Plug Load Management System Field Study

Research output: NRELTechnical Report


In 2018, NREL performed a demonstration of the IBIS InteliNetwork(TM) plug load management system, which includes: intelligent socket devices, which plug into existing electrical outlets and collect energy usage information; a gateway, which manages communication between the intelligent sockets and the PLM cloud service; and a PLM network, which is a cloud-based measurement and control network for the entire system. Two retail stores served as the field study sites. The PLM system was found to be effective at reducing plug load energy use, with a projected annual plug load reduction of 11% and 18% at the test locations. Retail staff reported that the hardware was easy to use, but no one used the online data management system, intended to analyze and control the hardware. This PLM solution shows promise as an effective means to monitor, control, and reduce plug load energy use, but the economics of the system need to be improved.
Original languageAmerican English
Number of pages72
StatePublished - 2019

NREL Publication Number

  • NREL/TP-7A40-72028


  • building energy efficiency
  • Building Technologies Office
  • commercial buildings
  • energy efficiency
  • General Services Administration
  • IBIS
  • plug and process loads
  • plug load meter and control devices
  • plug loads
  • technology demonstration


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