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Table 4: Indicative cost/benefits for the case study schools

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Building type

Benchmark building capital cost
$/m2

ESD building capital cost
$/m2

ESD building premium (saving)
$/m2

ESD building premium (saving)
%

Annual energy cost savings
$/m2

Annual water cost savings
$/m2

Total annual cost savings
$/m2

Simple payback
(years)

20-year NPV for ESD measures
$/m2

Secondary school

2430

2570

140

5.7

7.5

0.6

8.1

17.3

41

 

 

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