oThe European Alliance of Companies for Energy Efficiency in Buildings
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Overview

Assessing the Situation
• Current potential *
• Wider benefits

Finding a Way Forward
• Opportunities and barriers
• Case studies
• Recommendations

Downloads

Index of links

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High-Rise project >> Assessing the Situation > Current potential >

Refurbishment measures Results      
• For each base building Overall            

Warm climate AS3 countries (base building C)

Headline facts and figures

• Broadly representative of Turkey
• 3.5 million dwellings
• 73,000 buildings (theoretical)
• 22% of dwellings in the region
• Energy-saving potential in stock: 25%, equivalent to 1.7% of region’s final energy demand or 2.4 MtCO2 emissions

Predominant construction and heating features

• In situ concrete walls, flat concrete roof and concrete floor, single-glazed, metal frame windows
• Dwelling-based gas central heating (combi-boilers), allowing installation of TRVs and replacement with condensing combi-boilers

Cost effectiveness of energy efficiency investment

Energy savings, investment costs and cost of conserved energy

 

U-value before

U-value after

Energy saved [kWh/m2a]

Annual investment cost [€/m2a]

Cost of conserved energy [€cent/kWh]

Simple payback [a]

Walls

1.20

0.30

51.9

31.9%

0.78

1.5

14.0

Roof

2.17

0.24

20.7

12.7%

0.10

0.5

4.6

Floor

1.20

0.41

8.5

5.2%

0.12

1.4

12.8

Windows

3.00

1.80

23.1

14.2%

0.65

2.8

26.3

Package

1.66

0.60

104.1

63.9%

1.65

1.6

14.7

TRVs

32.6

20%

0.21

0.6

4.6

All of the above combined

115.9

71.1%

1.85

1.6

14.5

+ boiler replacement

126.6

77.7%

2.62

1.9

16.2

DHW effect

12.2

22.7%

Energy savings, costs of energy and of CO2 mitigation

 

Energy saved [kWh/m2a]

Cost of supplied energy [€cent/kWh]

Cost of conserved energy [€cent/kWh]

Net cost of conserved energy [€cent/kWh]

Cost of CO2 mitigation [€/tCO2]

Net cost of CO2 mitigation [€/tCO2]

Walls

51.9

31.9%

1.9

1.5

-0.4

74

-17

Roof

20.7

12.7%

0.5

-1.4

24

-68

Floor

8.5

5.2%

1.4

-0.5

68

-24

Windows

23.1

14.2%

2.8

1.0

139

48

Package

104.1

63.9%

1.9

1.6

-0.3

78

-14

TRVs

32.6

20%

0.6

-1.2

31

-61

All above

115.9

71.1%

1.6

-0.3

79

-13

+ boiler

126.6

77.7%

1.9

1.9

0.0

93

2

DHW effect

12.2

22.7%

Issues

• Nearly all data provided by the Turkish housing ministry is about the housing stock as a whole.
• In terms of climate, Turkey has parallels with France; it is a borderline case between a warm and a moderate climate – it even has few very cold regions – and is likely to have large simultaneous geographical and seasonal climate variability. This is likely to be reflected in a very wide variety of high-rise construction types.
 

EuroACE, Ave. Louise, 375 BTE-4, BE-1050 Brussels, BELGIUM.
T: +32 (0)2 639 10 10 F: +32 (0)2 639 10 15 E: info at euroace dot org

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