Water meter on yellow pipework
Airside and campus utilities

Airport utility monitoring, from the central plant to the gate and the water mains

Airport utility monitoring covers the central utility plant, the preconditioned air and ground power at gates, and the water mains that serve a campus that never closes. Aqueduct measures chiller and boiler efficiency, PCA and GPU use per gate, and a live water balance across terminals, cargo and support buildings, then finds losses, routes fixes and verifies results at the meter.

Powered by aQ WaterGuard, aQ EnergySmart and aQ PredictIQ, built on aQ Core
Water balance · live
42.6Supply=36.1Floors+4.2RO+2.3Loss
Unaccounted loss rising on line CW-4
Demo data
Bill validation · September
Supplier billed184.2 MWh
Metered176.9 MWh
Difference7.3 MWh
Demo data
Problem

Why airport utilities are hard to see

01

A central plant nobody benchmarks

Chillers and boilers serve every terminal, but plant efficiency is a commissioning figure, not a weekly measurement.

02

Gate equipment left running

Preconditioned air and ground power units keep running after the aircraft has pushed back.

03

Water mains with no balance

Water spreads across terminals, cargo and support buildings through aging mains, read manually or not at all.

04

No downtime for change

Nothing can be shut down to install a new system, so anything new must work over what is already there.

Coverage

Airport utilities Aqueduct measures

SystemMeasuredWhat Aqueduct derives
Central utility plantChiller and boiler power and fuel, BTU meters, pump and tower power, make-up waterkW per ton, plant efficiency, delta T and tower water use
Chilled and hot water distributionSupply and return temperatures and flow by buildingWhich buildings drive the plant, and low delta T at each
PCA and GPU at gatesPower per unit, run status, gate occupancy where sharedUnits running at empty gates, energy per turn where data allows
Water mains and servicesFlow at supply points, building and zone meters, pressureA live campus water balance with unaccounted loss by zone
By the numbers

What the numbers say.

6%+

of a facility’s water use can be lost to leaks.

Source: EPA WaterSense, getting started
0.5 gpm

from one leaking toilet wastes 21,600 gallons a month.

Source: EPA WaterSense at Work
Sources2 references cited on this page
  1. EPA WaterSense, getting started
  2. EPA WaterSense at Work
Questions

Common questions

By metering supply points and building or zone meters, then reconciling supply against use continuously. When the balance stops closing, the gap is unaccounted loss with a location. Aqueduct runs this live across the campus instead of waiting for manual reads.

Preconditioned air, or PCA, supplies conditioned air to a parked aircraft, and a ground power unit, or GPU, supplies electrical power, so the aircraft can avoid running its auxiliary power unit. Aqueduct meters both per gate and flags units left running at empty gates.

Yes. Aqueduct calculates kW per ton and plant efficiency from chiller, pump and tower power against cooling delivered from BTU meters, and tracks delta T by building so the loads that drive the plant are visible.

Yes. Aqueduct tracks chilled water supply and return temperature and flow for each building, so buildings returning water too cold are listed. Low delta T forces extra pumping and more chillers online, which shows up as rising kW per ton at the plant.

See Aqueduct on your own facility.

Bring a site, a utility bill or a question. We will show you where the loss is.