Assessing and Reducing Plug and Process Loads in Office Buildings (Brochure)

Research output: NRELBrochure


Plug and process loads (PPLs) in commercial buildings account for almost 5% of U.S. primary energy consumption. Minimizing these loads is a primary challenge in the design and operation of an energy-efficient building. PPLs are not related to general lighting, heating, ventilation, cooling, and water heating, and typically do not provide comfort to the occupants. They use an increasingly largefraction of the building energy use pie because the number and variety of electrical devices have increased along with building system efficiency. Reducing PPLs is difficult because energy efficiency opportunities and the equipment needed to address PPL energy use in office spaces are poorly understood.
Original languageAmerican English
Number of pages9
StatePublished - 2011

Bibliographical note

4/19/13: This June 2011 version has been superceded by the new April 2013 version. This link will now redirect you to NREL/FS-5500-54175.

NREL Publication Number

  • NREL/BR-5500-51199


  • office building
  • plug and process loads
  • PPL


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