Ben J. Sliwinski Building Research Council School of Architecture University of Illinois at Urbana-Champaign Saving Energy Municipal Buildings and More Overview Introduction – A Little About SEDAC The Language of Energy Technologies for Energy Efficiency Municipal Buildings
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Municipal Buildings and More
$/sf per year (quick and dirty use with caution)
around $1/sf = good
$1 to $2/sf = fair to slightly poor (typical)
$2 to $3/sf = probably room for improvement
$3/sf and above = oink (unless there is a process)
kBtu/sf per year – more accurate than dollar metric – can use TargetFinderBenchmarking (Is it a Hog?)
“Variable air volume (VAV ) terminal units shall be programmed to operate at the minimum airflow setting without addition of reheat when the zone temperature is within the set deadband.”
To meet this requirement, the control system must allow separate heating and cooling setpoints that are at least 5°F apart. If, for example,the cooling setpoint is 75°F, then the control system cannot enable the reheat coil until the space temperature drops to 70°F or below.
Oakland Street lighting – 15 year payback
Supermarket Parking Lot 70 percent savings – 5 year payback