Table D.17: Electricity performance indices

Indicator

2005

2006

2007

2008

2009

2010

Electricity performance index

100

102

99

102

104

107

Capacity, access and availability

100

100

99

100

104

110

Generating capacity per capita

100

101

101

102

102

109

Generating capacity per economic unit of output

100

99

97

98

105

111

Asset or capacity utilisation

100

106

103

106

108

114

Peak load as a percentage of generating capacity

100

106

103

106

108

114

Service quality and reliability

100

110

96

104

108

108

Unplanned interruptions per 100 customers

100

105

89

102

108

109

Unplanned minutes lost per customer

100

136

94

115

125

125

Transmission system availability

100

100

100

100

99

100

Reliability of supply of the transmission system

100

100

100

100

100

100

Asset condition

100

100

102

99

95

97

T&D losses as a percentage of total electricity supplied

100

100

102

99

95

97

Carbon emissions

100

95

96

99

107

107

Carbon intensity of electricity generation

100

95

96

99

107

107