Saugeen District Secondary School - Bluewater District School Board

Energy Efficient Vending
Machines
Motion Detecting Light
Switch
Where Advantages Cost Savings
� Common Area Energy Star machines have
more efficient
compressors, fan motors,
and lighting.
The low power mode
option allows the machine
to only use a little power
when in standby mode or
inactive.
More efficient lighting and
power off times when not
in use to eliminate constant
current.
� Classrooms
� Offices
� Washrooms
� Some hallways
(With a few
intermittent lights
that are
constantly on, so
the safety of the
students isn’t
compromised)
Outdoor Lighting Modifications to the
existing lights on the
school property:
� 6 lights on
standards
� 32 lights attached
to the walls
� 9 lamp posts
Power Controlling Device � Best on
appliances made
in the 1990s
� Eliminates lights being
left on and consuming
energy when the
spaces are vacant.
� As life becomes more
convenience-based
they will be very
practical
� Half the wattage of the
old lights
� Dark sky friendly
� Environmentally
friendly – entire light is
recyclable and there is
no Mercury
� Very little maintenance
� Average lifespan of
17.5 years
� New technology would
attract school publicity
� Motor adjusts the 60
cycle sine wave from
the utility to match
changes in the load on
the motor, allowing it
to operate at its peak
efficiency and at a
cooler temp..
The new
components in the
machine that cost
about 200 dollars
will save around
150 dollars per
year
~ $15 dollars
Not every room
would benefit from
these since some
require having the
lights on at all
times like the
larger rooms, such
as the common
room and
gymnasium, so
these would be
best simply in class
rooms and not the
larger rooms.
Hallways can be a
possibility.
Installation:
� ~$75/light
fixture for
standards
(total cost ~
$2,925)
� Wall lights:
$414.19 per
light (total cost
~ $13 254.08)
� Parking lot
lights:
$555.45/ light
(~ $3 888.15)
$30-60 with a
warranty from 10-
15 years
� The lighting of the machine
accounts for 35 percent of
the energy and the actual
refrigeration at 65 percent
so reducing the unnecessary
energy will reduce the
overall consumption.
� (Regular vending machines
will consume about 2,500
kilowatt hours (kWh) to
4,400 kWh of energy per
year, which cost about $200
to $350
� Depending on the number
of light switches that are
being converted will
determine the amount of
savings. (Est. of $4000/yr)
� Estimated reduction of 11.5
metric tonnes of GHG/yr
� The more switches that are
converted will have a
greater impact and for sure
outweigh the costs
extremely quickly.
� The company is will to sell
their lights at cost
� After 2.5 years, savings
would pay off the cost of
the lights
� Payback time is dependent
on: line, voltage, age/
condition, cost of device,
cost of utility electricity.
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