Building Management Hawaii - (Page 38)
Managing PV Energy Consumption
Maintenance and inspections are critical to efficiency
BY FRED BROOKS
EnErgy MAnAgEMEnt
P
hotovoltaics once was an off-the-beaten-path term
in Hawaii but is now a mainstream term in daily
conversation. One topic of conversation that has not been
as mainstream has been the maintenance issues on the
systems after they have been installed.
From a standpoint of energy management and cost
analysis this is the easiest thing that can be done to keep
the system performing at its peak efficiency and knowing
if a problem is going to arise, and if a problem does
arise the downtime of that system is kept at a minimum.
Downtime of a photovoltaic system is a direct correlation
to lost energy and lost money.
One of the approaches that should be taken toward an
installed photovoltaic system is that it is an extension of
the equipment on the property and as with all equipment
there should be a maintenance schedule set. The main
pieces of equipment on the system, the panels and the
inverters all come with an installation guide, and inside
that guide there is always a maintenance section.
One piece of equipment that can be of the most vital
is the monitoring system and the understanding of how
the monitoring system works. Most monitoring systems
come with a comparison marker formula and a tracking
system so you can follow the systems performance and
ensure it is operating where it needs to be. These pieces
of equipment like all equipment on a property should be
scheduled for routine servicing and inspection, and at
the minimum should be followed what is stated in the
installation guides.
Inverters should have the intake and exhaust screens
cleaned and inspected on a regular basis. If the inverter
does not get to cool down to its best temperature with
proper airflow, you can be losing efficiency due to
heat issues and as a result losing energy that could be
Doing regular walk-through
inspections and a minimum
of annual cleaning of the system
is the best thing that can be done
to keep your system up and
operational at its peak performance.
harnessed. To keep a piece of equipment operating and
performing well is easy to do as long as there is a routine
check on the system.
The slow degradation of a system will occur because,
just as with any kind of systems, they do not just shut
down but have a slow progression of loss of efficiency
which is not immediately perceived unless it is really
tracked and understood what is happening. With a
maintenance schedule and a knowledgeable person
tracking the system these items can be avoided. With
the tracking of the system performance and keeping it
on a maintenance schedule this can be the easiest way to
get the most out of your system for the 20-plus years it
should be operating.
Routine maintenance can be as simple as having
someone do a walk-through on the system on a regular
basis to see if there is dirt build-up, birds nesting or any
other animal issues that can occur on the panels. When
doing the walk-through you should check the piping runs
as these hold the wires that are carrying the electricity that
your system is producing. Without these wires and path
you do not get to utilize the energy that is being produced.
The visual inspections include checking the system for
38
February-March 2015
BMH
www.buildingmanagementhawaii.com
http://www.buildingmanagementhawaii.com
Table of Contents for the Digital Edition of Building Management Hawaii
Editor’s Note: Energy Management
Insider’s Guide to Picking a Security Company for Your Property
Industry News
Dealing with Graffiti and Glass Damage
Hawaii’s High-Tech Roofing Products
Building and Management Expo Set
Installing New & Improved Windows
Window Film Cuts Glare, Energy Bills
Reassessing Hurricane Preparedness
An ESA Can Deliver Peace of Mind
Checking a Building’s Energy Score
Managing PV Energy Consumption
The Ultimate Energy-Efficient Building
What to Know About Chiller Plants
New Trends Emerge in HVAC Systems
Walk-throughs Vital to Engineers
Trapped in the Web of Act 326
Faces: The IREM Banquet
Building Management Hawaii
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