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C19 Ecologically sustainable development


Sustainable Schools Initiative

The Australian Sustainable Schools Initiative (AuSSI) is a partnership between the Australian Government and states and territories to help schools achieve a sustainable future. In the ACT, AuSSI is managed by the Environment and Sustainable Development Directorate (ESDD) and is supported by the Directorate and non-government schools. AuSSI is now being implemented in all 128 ACT schools.

The partnership previously developed between ESDD and the Directorate to conduct water audits and provide water efficiency reports to all ACT public schools was continued this reporting year with nine public schools receiving a water audit in 2011-12, bringing the total to 75 schools. Each of these schools received a report recommending water saving initiatives based on the audit findings.

During 2010-11, the sustainability handbook 'What is a Sustainable School?' and Sustainability Action Kit were distributed to ACT schools. During 2011-12, AuSSI ACT conducted a professional development workshop to support the introduction of the handbook and Kit.

The Directorate and AuSSI ACT also continued to work together during 2011-12 to provide all ACT public schools with assistance to reduce energy consumption and to accredit schools that demonstrated the sustainable management of energy.

Water consumption

Water consumption across all ACT public schools in 2011-12 totalled 291,222 kilolitres which was an increase of 3.3 percent. Water consumption data for the three years from 1 July 2009 to 30 June 2012 is graphed in Figure C19.1. Water reduction measures implemented by the Directorate are discussed in Section C20.

Figure C19.1: Water consumption in public schools, 2009-10 to 2011-12

Graph showing water consumption in ACT public schools,2009 2010 to 2011 2012.

Source: Schools Capital Works Branch

Energy consumption

All ACT public schools have received an energy audit. The energy audits established baseline energy performance data and identified recommendations to improve the efficiency of each school and provided schools with an analysis of electricity consumption and site specific recommendations on how to reduce the consumption.

The whole of government electricity supply contract increased the amount of green power purchased to 37.5 percent by ACT agencies including ACT public schools in 2011-12. This was an increase from 32.5 percent in 2010-11.

Electricity consumption across all schools was steady, showing a slight increase of 1.7 percent. However, gas consumption increased by almost 8.3 percent compared with 2010-11. This resulted in an overall increase in energy consumption by 3.9 percent. This increase was due to the opening of new schools and new facilities under the Building the Education Revolution and ACT Government capital works programs during 2011-12. Despite the overall increase in energy consumption by schools, the higher proportion of green power energy resulted in a decrease of greenhouse gas emissions of 1,152 tonnes, which is a decrease of 3.9 percent.

In addition, the results of the lighting audit undertaken in 2010-11 continued to identify those schools and locations where less efficient light fittings were installed. Reducing energy consumption was an ongoing issue for schools and to this end lighting in all refurbished areas in ACT public schools continued to be upgraded to energy efficient fittings as part of the standard program of capital upgrades.

Electricity and gas consumption are graphed in Figure C19.2 for three years from 1 July 2009 to 30 June 2012. For further energy reduction measures refer to Section C20.

Figure C19.2: Energy consumption in public schools, 2009-10 to 2011-12

Graph showing energy consumption in ACT public schools, 2009 2010 to 2011 2012.

Source: Schools Capital Works Branch

Office-based sustainability

The information on a range of sustainability indicators for 2010-11 and 2011-12 from four central office sites (Braddon, Stirling, Fyshwick and Higgins) is given in Table C19.1. It does not include non-office (school) data.

The information in Table C19.1 was calculated using data provided by ActewAGL, Territory and Municipal Services Directorate, SITA Environmental Solutions, Sgfleet, Recall, Thiess Services, Cleanaway, JJ Richards Waste Services, Able Organic Recycling and Office Max. The details for office greenhouse gas emissions and transport gas emissions were  calculated with the assistance of ESDD.

The Directorate participated in the Smart Office recycling program from 1 July 2011 to increase the levels of recycling at its primary central office site (220 Northbourne Avenue, Braddon). The program will increase the accuracy of measuring paper recycling levels.

The Directorate is working with ESDD to develop its Resource Management Plan. The plan provides a basis for monitoring and evaluating resource efficiency measures against specific targets in relation to management of water, electricity, gas and transport fuel consumption, waste production and recycling, and greenhouse gas emissions. This will support the Directorate's compliance with the ACT Government's climate change strategy Weathering the Change to reduce emissions by 40 percent from 1990 levels.

Table C19.1: Information on office-based sustainability indicators, 2010-11 and 2011-12

Indicator

Unit

2010-11

2011-12

Occupancy - Staff

FTE

337

334a

Area office space - Net lettable area

Square metres

7,808

6,600a

Stationary energy

Total electricity use (including renewable)

Kilowatt hours

1,296,406

1,192,674b

Renewable energy use (Greenpower & EDL land fill gases)

Kilowatt hours

173,896

437,185c

Percentage of renewable energy used

Percentage

13.4

36.7

Natural gas use

Megajoules

2,719,796

2,941,076

Total energy use

Megajoules

7,386,858

7,234,710

Intensities

     

Energy use per FTE

Megajoules

21,919.46

21,660.81

Energy use per square metre

Megajoules

946.06

1,096.17

Transport

Total number of vehicles

Number

24

19d

Total vehicle kilometres travelled

Kilometres

301,657

198,721d

Transport fuel (Petrol)

Kilolitres

21.49

8.64d

Transport fuel (Diesel)

Kilolitres

2.59

8.34d

Transport fuel (LPG)

Kilolitres

0

0

Transport fuel (CNG)

Kilolitres

0

0

Total transport energy use

Gigajoules

834.97

617.41d,h

Water

Water use

Kilolitres

7,254

2,961e

Intensities

Water use per FTE

Kilolitres

21.53

8.87

Water use per square metre

Kilolitres

0.93

0.45

Resource efficiency and waste

Reams of paper purchased

Number

8,259

8,152

Recycled content of paper purchased

Percentage

98

51f

Estimate of general waste

Litres

690,000

675,000

Estimate of co-mingled material recycled

Litres

1,500

36,300g

Estimate of paper recycledd

Litres

224,400

239,520

Estimate of organic material recycledd

Litres

Not available

313

Greenhouse gas emissions

Total stationary energy greenhouse gas emissions (All scopes)

Tonnes CO2-e

1,378.57

977.68h

Total transport greenhouse gas emissions (All scopes)

Tonnes CO2-e

63

46h

Intensities

Greenhouse gas emissions per FTE

Tonnes CO2-e

4.09

2.93

Greenhouse gas emissions per square metre

Tonnes CO2-e

0.18

0.15

Transport greenhouse gas emissions per FTE

Tonnes CO2-e

0.19

0.14

Source: Finance and Corporate Support Branch

Notes:

a. The results for the 'general' elements are based on the three central office sites at 220 Northbourne Avenue in Braddon, the Hedley Beare Centre for Teaching and Learning in Stirling and Higgins Primary School. The net lettable area figures are lower than last reported due to no central office staff being located at Higgins Primary School or Fyshwick Annex.
b. The results for the environment elements are based on the four central office sites at 220 Northbourne Avenue in Braddon, Hedley Beare Centre for Teaching and Learning in Stirling, the former Higgins Primary School and the Fyshwick Annex.
c. The results for the 'renewable energy use' are significantly higher than 2010-11 due to more comprehensive reporting in the renewable energy area required by ESDD.
d. The results for the 'transport' elements are based on the central office sites which lease/operate Government vehicles. The reduction in 'transport fuel (petrol)' is due to the Directorate leasing more fuel efficient diesel vehicles.
e. The results for the 'water' element are significantly lower than 2010-11 due to there being no major water/plumbing issues during 2011-12.
f. Variation represents a change in methodology.
g. The results for the 'estimate of comingled material recycled (based on bins collected)' is significantly higher than 2010-11 due to the increase in comingled recycling for 220 Northbourne Avenue in Braddon after this site became an ACT Smart Office accredited recycler in 2012.
h. Calculated with information entered into OSCAR.

School-based sustainability

The information on a range of sustainability indicators for 2010-11 and 2011-12 for ACT public schools is given in Table C19.2

Table C19.2: Information on school-based sustainability indicators, 2010-11 and 2011-12

Indicator

Unit

2010-11

2011-12

Occupancy – Students and staff a

FTE

40,804

41,883

Area school space

Square metres

561,356

571,259

Stationary energy

Total electricity use (including renewable)

Kilowatt hours

29,495,974

29,007,835

Renewable energy use (Greenpower) b

Kilowatt hours

9,586,192

10,877,938

Percentage of renewable energy used

Percentage

32.5

37.5

Natural gas use

Megajoules

134,465,411

145,673,636

Total energy use

Megajoules

240,650,917

250,101,842

Intensities

     

Energy use per FTE

Megajoules

5,898

5,971

Energy use per square metre

Megajoules

429

438

Water

Water use

Kilolitres

281,871

291,222

Intensities

Water use per FTE

Kilolitres

6.91

6.95

Water use per square metre

Kilolitres

0.50

0.51

Greenhouse gas emissions

Total stationary energy greenhouse gas emissions (all scopes)

Tonnes CO2-e

29,916

28,764

Intensities

Greenhouse gas emissions per FTE

Tonnes CO2- e

0.73

0.69

Greenhouse gas emissions per square metre

Tonnes CO2- e

0.05

0.05

Source: Finance and Corporate Support Branch and Schools Capital Works Branch

Notes:

a. Figures from February census of students and staff in schools. Preschool students taken as 0.5 FTE.
b. Percentage of Greenpower from whole of government electricity supply contract.


For more information contact:
Director
Schools Capital Works
(02) 6205 3173