Countries

Year

Overall energy efficiency (%)

Overall exergy efficiency (%)

Reference

China

2005

-

10

[8]

Canada

1986

50

15

[7]

USA

1970

50

14

[7]

Brazil

2001

35

23

[7]

Italy

1990

-

2

[7]

Malaysia

1997-2004

69.32

29.98

[12]

Jordan

2006

66.60

15.40

[14]

Turkey

2004-2005

80.98

22.17

[15]

Norway

2000

-

12

[7]

Saudi Arabia

2004

76

9

[9]

Cameroon

2010

58.15

22.41

-