Field Validation of a Building Operating System Platform

Research output: NRELTechnical Report


The U.S General Services Administration's (GSA's) Green Proving Ground program, in partnership with the National Renewable Energy Laboratory. completed a large pilot study of an Energy Management Information Systems (EMIS) with Automated System Optimization (ASO). Four test bed facilities, each with different building characteristics and systems, were chosen for the implementation of cloud-based EMIS with ASO. Depending on functionality, this tool can be extremely effective in energy management and energy optimization in buildings. The capabilities evaluated in the pilot ranged from energy savings and energy consumption predictions to evaluations of user acceptance, operability, and ease of installation. This report presents the methodology, lessons learned and best practices, and deployment recommendations for the GSA's portfolio of commercial office space, comprising more than 8,500 properties.
Original languageAmerican English
Number of pages94
StatePublished - 2022

NREL Publication Number

  • NREL/TP-5R00-83236


  • automated system optimization
  • building automation systems
  • building management systems
  • cost-effectiveness
  • energy efficiency
  • energy management information system
  • energy optimization
  • energy savings
  • Green Proving Ground program
  • GSAlink
  • operability
  • peak demand prediction


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