Transcript Watt Wize

Wattwize at Dunbarton
2006-2010
Where Does Wattwize Fit?

Grade 9 Science – Electricity
-Audits of classrooms and
offices.

Environmental Club
- Audits of “the commons” –
utility rooms, hallway lighting,
computers.

Co-op
- co-op student attached to
Urban Watershed Science.
EcoSchools Part II. Energy
Conservation
Guiding Question: How does your school
make decisions, and follow daily routines
and operational practices, that significantly
reduce its impact on the environment?
At DHS:
 Initial Electrical Use Audit (October 2008) –
80 classrooms audited.
 Lighting Energy Conservation Program for
renovated classrooms (coming in March
2009).
 Lighting Energy Conservation Strategy for
school offices, utility rooms, etc. (To be
presented to DDSB Facility Services March
10 2009)
 Automatic Computer Shutdown Study (April
2009)
 Final Electrical Use Audit (March-April
2009) – 80 classroom follow-up.
 Hallway Lighting Load Study (2009-2010)
SNC1D4 Wattwize Initial Findings - 1
December 2006
 What We Know

DHS Annual Electricity Cost:
August 2006)

DHS Annual Consumption
1 674 808 kWh (enough
electricity to run a 100 W light bulb for 1912 years, or the
output of all six operating reactors at the Pickering
Nuclear station for about 35 minutes)
 ***Why
the bill?
$174 797 (year to
is this less than the number from
SNC1D4 Wattwize Initial Findings - 2
December 2006

Lighting
 Total Calculated Lighting Load: 275 404 kWh @
$0.113/kWh= $31 120/year.

Assumptions 34 W bulbs on for 7.5 h/day, 5
days/week, 44 weeks/year.
- number includes all halls and classrooms.
- number excludes storage rooms, gym lights,
outdoor lights, heating system (pumps)….
SNC1D4 Wattwize Initial Findings - 3
December 2006
 Difficulties:
- actual time lights on?
- ballasts in each fixture use from –2W to
25W (not part of our calculations)
- Bulbs being changed to T8 from T12.
2 Lamp FL fixture system comparison
Lamp Lamp Fixt.
Fixt. Lumens
Size watts Watts Current per
lamp
(A)
T12
40
88
.73
3050
Lumens
per
Watt
%
69
T12
34
76
.63
2650
69
-
T8
32
59
.49
2900
98
+ 30 %
T5HO
54
120
1.0
5000
83
+ 17 %
SNC1D4 Wattwize Initial Findings
December 2006






What We Found Out
We measured or calculated:
- electricity consumption for
lighting, computers, pop
machines.
- actual DHS metered
consumption for the week of Nov.
28 to Dec. 5.
Focus On:
Lighting and Phantom Load –
these can be controlled by student
and teacher behaviour.
WattWize Utility Room
Audit Survey
Summary of Findings
March 2009
Summary – to identify potential
electrical savings by installing motion
sensitive light switches in all offices,
washrooms, gymnasiums, change rooms
and storage rooms in the Dunbarton North
Campus.
 Project
Survey:


59 rooms were identified
78 individual light switches were in these
rooms
 These switches controlled 34W light bulbs.
 Assumptions
 each light bulb is on for 9 hours each day
(8am to 5 pm)
 all bulbs are 34W
 motion sensitive switches would cut power
use in these rooms between 25% and 50%.
Why Do We Want to Do this?
Why Rely on Artificial intelligence, should we not be trying to make our
society appreciate the environment?
Yes, as a school we are doing other initiatives in order to make our school
realize the environment should come first. However, the work rooms are
rooms that is the responsibility of everyone and no one. This is an issue
that many school may have where everybody can take responsibility
because it is an undesignated zone, the issue is that no one ever does.
This the reason we would like to rely on Artificial intelligence to control our
electrical usage in these rooms that are not being taken care of by students
or staff.
Where has our Information Come
From ?

A group of Grade 9 science
classes along with over 30
member of Dunbarton's
environmental club over 2
years have all had the
opportunity to survey
Dunbarton’s electrical usage. It
has left us with over 13 pages
of raw data this is being used
to make calculations as to how
we can reduce our electrical
consumption
Dunbarton High School
Wattwize Data
Room #
Room Type
#
switche
s
#
bulbs/switc
h
x 34
W/bulb
100s
Level
100s
girls'
bathroom
2
6
34
100s
boys'
bathroom
2
6
34
137
science office
1
10
34
137
●science
office
1
20
34
cafeteria
right side
1
58
34
cafeteria
bottom
1
56
34
cafeteria
bottom
2
32
34
cafeteria
bottom
4
28
34
cafeteria
bottom
1
26
34
Doing the work
This project has been a culmination of two years
of research and raw data. To the left is a
member of the Electrical Team recording the
number of light switches and how many bulbs
each switch controls.
The team also takes notice of the number of bulbs
in each light bank and how many light banks there
are per room. All of these factor into calculating
the Kilo Watt usage for each room
100's Electrical Consumption
The 16 rooms in the 100 area
had an overall Kilo Watt
consumption of just over 135
Kilo Watts an Hour each day
40000
34272
35000
25000
19584
17748
17136
20000
Series1
15000
12240
7956
4896
10000
6120
5000 183618363060
With Motion sensors and a 50 %
reduction in electrical use in these
rooms the Kilo Watt usage by the
100’s area would be just below 68
KwH
4896
612 122412241224
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Room Number
This shows a money saving of
around of around 8 dollars a day.
This means that all 59 rooms will
be reducing their emissions from
373 KwH to just above 186 KwH
With all motion sensors put in
Dunbarton will be saving daily just
above 22 $
100's 50% Reduction
40000
35000
30000
Watt Hours
Watt Hours
30000
25000
20000
Series1
15000
10000
5000
0
1
2
3
4
5
6
7
8
9
10
Room Number
11
12
13
14
15
16
The yearly output has Dunbarton putting out 74 000 KwH a year, (200 school days)
With sensors and a 50 % reduction we reduce that number to 37 000 KwH for the
entire year.
This also means that we are saving just under 4000 $ annually.
Our CO2 output is also much less. We are putting out approximately 10.3 metric
tons less of CO2 gasses throughout the year
However if we save around 50%, we are
then able to use the excess money to maybe
move to something like Bullfrog power. An
alternative energy company that may cost
more but uses completely green energy from
wind turbines and solar power.
Quick View
Heath Zenith
Heath Zenith Occupancy Motion
Sensor Wal...
Store SKU #
1000512067
$29.99
COMPARE
Details
At the local Home Depot
motion sensitive light switches
are priced at 30$ after tax is
34 $
59 rooms = 34 X 59 = 2006 $
for all of the lights to be
covered and installed. This is
assuming we only need one
sensor per room.
Even at an electrical savings of
only 25% we basically cover
our cost within the first year.
In Conclusion

Here at Dunbarton in North Campus we have 59
work rooms with manual switches
 We have an annual kilowatt consumption of 370,014
kilowatt hours
 With the introduction of automated light switches we
can reduce this by 18,300 kilo watt hours
 This will give us a money saving of 5000 $ and it will
cost us 3000 to install meaning we will make our
proposed cost back within less than a year.
 We will save ……. Trees
 We will take 3232 tons of CO2 out of our earths
atmosphere.
 Which is the equivalent of driving a .. For estimated
number of hours.
What We Want

Although we are asking for this, it is not our ultimate
goal.
 We are asking that you allow us to be a pilot school.
Allow us to be environmental leaders within the
Pickering, Ajax and the surrounding Durham region.
 Allow us have motion light switches, allow us to create
green roofs on our newly constructed roofs.
 Allow us to explore geothermal heating and allow us
harness the power of our sun in order to run our school
rather than relying on power that ultimately destroys our
Earth.
 Allow us to switch to Bull frog Power. This money could
come from the savings produced by the sensors.
 We want our initiatives to be supported this is ultimately
what we are asking for.

We are asking that you allow us to be truly
environmental and explore the opportunities of
renewable energy, waste reduction and green
roofs. We are asking that you support Change.
“You must be the change you wish to see in the world”
Mahatma Ghandi
EcoSchool Co-op Student
Andrew Graham
Duties:
 Energy and Waste Follow up Audit.
 Renovated Classroom Project.
 Computer Shutdown Study.
 EcoSchool Presentation
for Feeder Schools.
 Look for him Wednesday and
Thursday afternoons.
Hallway Lighting Audit
 Count
all hallway light bulbs.
 Estimate and calculate lighting load.
 Identify overlit areas.
 Remove bulbs
 Add educational material.
DHS Conservation Plan
2008-2011
Goals
Develop data based room specific programs to enable
conservation behaviour in all room users.
Educate staff and students on the importance of energy
conservation and train room users in conservation
behaviours for the rooms they use.
Identify needed infrastructure changes that if implemented
would reduce electricity consumption in the school.
Engage Facilities Services and School Administration in
education and discussion about how to implement
infrastructure changes.
Monitor electricity consumption in the school for two years.
Reduce electricity consumption by 10% in each of our
buildings from 2008 levels by June 2010.
How? – The Commons
Area 1: The Commons

areas of the school that are “un-owned” by any particular individual or group.

storage rooms, gymnasiums, hallways, some staff workrooms, washrooms and photocopy rooms.

The main use of electrical energy in these rooms is for lighting.

There is therefore no easily identifiable “owner” of these spaces who can be educated on energy
conservation behavioural change.
Strategy:

Identify all “commons” rooms.

Determine lighting energy consumption in each of these rooms (see attached spread sheet).

Identify potential savings if lighting use reduced (see attached power point presentation)

Deliver data and strategy to Board officials (February 2009). Ask for the installation of motion and
sound sensitive switches to automate “lights off” in these areas (except hallways).

Success (see letter indicating approval for the installation of ten of these switches).

Fall 2009 – Initiate a study of hallway lighting use with a view to reducing the use of lights in
hallways.


How? – Owned Spaces
•

stable and predictable occupancy throughout the school year.
educating users to reduce electrical consumption through
behavioural change.
Type 1: Newly Renovated Rooms (Science, Math and 2 Computer Labs),
South Campus

Identify opportunities in the design of the newly installed light
switches.

Calculate potential $ and CO2 and kWh savings of each switch
combination.

Develop a poster and deliver an annual presentation to explain
potential savings.
Type 2: Rooms With Computers (Library, Computer Labs)

Use the Wattwize program to audit energy use in each of these
rooms.

Each room will receive a poster and a presentation identifying
achievable behavioural changes

Our Wattwize/ Ecoschools student will begin a study of nighttime
computer shut-off.
Type 3: All Remaining Classrooms, Main Office

Use the Wattwize program to audit energy use in each of these
rooms.

Each room will receive a poster and a presentation identifying
achievable behavioural changes.
DHS Conservation Plan Outcomes









Analysis of possible savings from reduced electrical use in commons. (Fall 2008)
Development and delivery of presentation to Board Facilities Services staff on data
related to potential savings in commons areas. (Spring 2009 - complete)
Installation of motion and sound sensitive switches in commons areas. (Approved for
Fall 2009)
Development and delivery of energy conservation posters and short presentations to
classrooms and offices (two formats, depending on newly renovated room or not).
(Spring 2009 – complete)
Analysis of computer shut-off data. (June 2009)
Development of presentation to Board Facilities Services staff on results of computer
shut off study and implementation of any needed strategies. (Fall 2009)
Analysis of hallway lighting consumption and identification of areas for conservation
of electricity used for this lighting.(Fall 2009)
Development and delivery of presentation to school Principal of the proposed hallway
lighting conservation plan.(Spring 2010)
The school actually uses less power!
Solar Project Coming to Durham Public
Board
January 05, 2010
“money for green pilot projects at Dunbarton
High School in Pickering and the unnamed
Lynde Shores public school in Whitby. The
program, which received almost $95,000, will
see solar technology installed at the locations to
heat water, said superintendent David Visser.”
 "I look forward to seeing the solar panel at
Dunbarton at work this spring," said Pickering
Trustee Sherry Croteau.
