Saugeen District Secondary School - Bluewater District School Board

How Advantages Cost Savings
Solar Panels Photovoltaic cells are made of
semiconductors such as silicon.
When light hits the cell some of it is
absorbed by the semiconductor
allowing the electrons to flow freely.
We harness this current by placing
metal contacts on both sides of the
cell. The cells produce DC and a
converter is needed to convert it to
A/C.
Need 175 to offset our electrical
needs.
Tankless Water Heater These heated coils would be
installed at various locations
across the school, where hot
water is needed
Wind Turbine One roof mounted vertical axis
turbine. (Vbine®)
One wind turbine mounted on a
ground-based standard (Skystream
3.7 ®)
� Panels are flexible and can be installed almost
anywhere.
� Power can still be generated on cloudy days
� Provides and endless supply of non-polluting
power
� If in the height of the schools electricity demands
(June) the total consumption is 119 099.5 kWh,
and our solar panels produced 35 kW we could
potentially produce 126000kWh, which would
more than offset our total energy needs.
� Feed-in-tariff provides a source of revenue (see
Savings)
� Replaces the hot water tank
� hot water on demand”
� This technology doesn’t require the energy
to keep a tank of water hot all the time. It
rather heats the water needed when it is
needed
� Operates with even low wind speed, from
any direction
� Low noise
� Safe for the environment (birds and bats)
� No maintenance (2 sealed bearings expected
to last 20 years)
� Can feed into the grid
175 panels
$140 000
Installation
~$200 000
Inverter
$35 000
Total Cost
$375 000
Each unit costs
approx.. $500
� They will pay themselves off
within 20-25 years.
� Entering into a 20 year contract
with the government yields
$0.80/KW for all the energy
generated
�
Will provide up to a 40% saving
in hater hating costs.
At the Dr. David Suzuki Public
School the VWAT roof-mounted
turbine, “taking into account
energy losses and varying wind
speed, the expected annual
electricity savings generated from
the wind turbine are 4,000kWh”
(DeCoppel et al, 2008, Report)
(Avery et al, 2011, Report)
(Dr. David Suzuki Public School, 2011, http://www.suzukipublicschool.ca/building-features/renewable-energy/wind/skystream.html)
(Dr. David Suzuki Public School, 2011, http://www.suzukipublicschool.ca/building-features/renewable-energy/wind/skystream.html )
(Gibb, 2008, e-mail)
(Stansfield et al, 2011, Report)
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