Energy Management Information System with Automated System Optimization

By combining siloed building systems data with external information sources, like weather, into a single integrated platform, an energy management information system (EMIS) can provide real-time situational awareness and increase building efficiency.

Researchers found that using machine learning to optimize air handling units (AHUs) informed by weather and occupancy saved between 5% and 11% of whole-building energy. As buildings become more complex, an EMIS with ASO can simplify building management and provide ongoing energy savings. View full-size infographic. [PDF - 330 KB]

GPG Findings 050, September 2022, ENERGY MANAGEMENT SYSTEM WITH AUTOMATED SYSTEM OPTIMIZATION. Opportunity: How much energy
  can be saved with
  smart building
  control? UP TO 30%. ENERGY USE IN COMMERCIAL
  BUILDINGS CAN BE SAVED WITH
  AUTOMATED SYSTEM OPTIMIZATION. Technology: How does an energy management information system (EMIS) with automated system optimization
  (ASO) work? Aggregates historical and real-time data with
  machine learning and thermal modeling to optimize
  building performance. EMIS collects data from sensors, meters and IoT devices and integrates them. Data analytics transmits actionable information to the building engineer. Reports track improvements and measure savings. ASO uses machine learning to dynamically control and optimize building systems based on weather and occupancy. Where did M and V occur? NATIONAL RENEWABLE ENERGY LABORATORY assessed the impact
  of an EMIS with ASO provided by Prescriptive Data at four testbeds
  representative of a range of GSA facility types and operating conditions. Results: How did the EMIS
  with ASO perform
  in M&V? 5-11%
  WHOLEBUILDING
  ENERGY
  SAVINGS. from controlling AHU
  fan speeds based on
  weather and occupancy. 95%
  ACCURATE
  PREDICTED
  DEMAND
  WAS WITHIN
  5% OF
  MEASURED
  DEMAND. VISIBILITY
  INCREASED
  WITH MULTIPLE DATA STREAMS4
  INTEGRATED DASHBOARD
  REVEALED OPERATIONAL ISSUES
  POSITIVE USER ACCEPTANCE. GSA Market Analysis for Automated System Optimization. At 5% annual savings, 90 out of 504 GSA buildings show positive cash flow. At 7.5% savings, 223 GSA buildings have positive cash flow. At 10% savings, 322 buildings have positive cash flow and at 12.5% savings, 424 buildings have positive cash flow. Deployment: Where does M&V
  recommend
  deploying an EMIS
  with ASO? BUILDINGS WITH HIGH ENERGY COSTS
  An EMIS with ASO can simplify building management and should be considered for
  deployment across the portfolio. Prioritize buildings with high energy costs. [PDF - 330 KB]


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Last Reviewed: 2022-09-25