Building Management Hawaii February/March 2014 - (Page 14)
EnErgy ManagEMEnt
The New Age Of Energy Metering
Maximizing the benefits of real-time sub-metering.
By Ed Pantzar
T
hrough advancements in
technology the traditional submeter has become obsolete. No
longer is energy data privy to only
the facility manager, who jots down
monthly totals from the depths of
a utility room. We have entered an
era where smart-meter energy data
is available to residents, facility
managers and billing providers-all
in the same moment. Now energy
meters allow each of these entities to
actively utilize information for their
own benefit, and they do.
Apartment residents can now
view energy consumption of their
own apartment through a dedicated
user portal. Using a graphical display
feature makes simple acts such as
turning off all lights a source of
instant gratification. As residents
track their progress they are able to
realize instant cost savings, and all
the while forming their own energy
efficiency standards.
The same system used to measure
a resident's apartment can be a
preventative maintenance tool for
facility managers. Text message
and email alerts are now commonly
included with energy monitoring
packages, and the alerts can be
eGauge main graph screen. Small commercial load profile, plus sub-loads. (Solid red = total
load, shaded red = total energy consumed from grid, gold = lighting circuit, black = server
closet, rightmost column = instantaneous power bar.)
customized to the facility's specific
needs. On a basic level, these alerts
can reduce resident dissatisfaction by
providing a quick response to failure
of high demand amenities, such as
air conditioning.
Advanced sub-metering systems
come outfitted with various forms of
communication protocols to further
a facility's control. The ability to
communicate via BACnet ® (Building
Automation Control Network) is
Second-by-second
graph with sub-loads.
Main feed amperage measurement with
three Current Transformers, 3-phase.
14
February-March 2014
BMH
www.buildingmanagementhawaii.com
http://www.buildingmanagementhawaii.com
Table of Contents for the Digital Edition of Building Management Hawaii February/March 2014
ENERGY MANAGEMENT
Engineered Efficiency: A Holistic Approach
Why Host An EV Charger
The New Age Of Energy Metering
Are You On Island Time?
Time To Stay Cool
Through The Tinted-Glass, And What Savings You’ll Find There
SECURITY
Managing Off-Site
Safe & Secure
HVAC: Top Trends
EDITORIAL Notes
An Industry Unites At Expo 2014
The (Often Overlooked) Success Factor
On Site: Men At Work
Building Management Hawaii February/March 2014
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