OppoRTUnities Abound

Research output: Contribution to journalArticlepeer-review


According to the U.S. Energy Information Administration, HVAC accounts for approximately 38 percent of U.S. commercial buildings' primary energy consumption and a slightly higher percentage of their greenhouse-gas emissions. We have seen incredible gains made with lighting, going from incandescent and T12 fluorescent bulbs to high-efficiency LEDS, but there are even greater advances to be made with HVAC. Gains of 20 percent to 30 percent easily can be made by replacing older degraded equipment with new high-efficiency equipment. Even more savings are possible with an integrated engineering approach yielding optimized system designs combined with highly efficient controls.
Original languageAmerican English
Pages (from-to)16-17
Number of pages2
JournalHPAC Heating, Piping, AirConditioning Engineering
Issue number1
StatePublished - Jan 2017

NREL Publication Number

  • NREL/JA-5500-70149


  • design
  • HVAC
  • operation
  • savings
  • thermal performance


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