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Description Unit By the
end of 		By the
end of 		By the
end of 		By the
end of 		2001 Changes (%) in comparison with
1978 1994 2000 2001 1978 1994 2000
1-Generation
Installed Capacity MW 1520 2787 3828 3828 152 4.37 -
Shahid Abaspour Dam MW 1000 1000 1000 1000 - - -
Dez Dam MW 520 520 520 520 - - -
Ramin MW - 945 1890 1890 - 100 -
Modhej MW - 322 418 418 - 30 -
2- Length of transmission and
 subtransmission lines
Length of 400 K.V. lines km/circuit 137 393 684 728 431 4.31 4.6
Length of 230 K.V. lines km/circuit 1094 1706 1930 2030 5.85 6.7 2.5
Length of 132 K.V. lines km/circuit 1040 1679 2309 2453 136 11 2.6
Length of total transmission and
 subtransmission lines 		km/circuit 2271 3778 4923 5210 129 1.12 8.5
3- Number of transmission and subtransmission substations
Number of 400 K.V. substations station 3 4 6 6 100 50 -
Number of 230 K.V. substations station 9 19 22 22 144 8.14 -
Number of 132 K.V. substations station 36 67 89 92 158 12 3.3
Total number of transmission and subtransmission substations station 48 90 117 120 152 9 5.2
4- Capacity of transmission and subtransmission substations
The capacity of 400 KV substations

MVA

 400 1450 2450 2450 512 69 -
The capacity of 230 KV substations MVA 470 4188 5248 5518 666 9.9 1.5
The capacity of 132 KV substations MVA 1089 2937 4693 4836 344 15 3
Total capacity of transmission and subtransmission substations MVA 2209 8575 12391 12804 479 7.9 8.3
5- Distribution Network
Medium Voltage Network Length (33,11 KV) KM 2978 10728 13549 14168 376 32 6.4
Low Voltage Network Length (400 KV) KM 2542 7685 9951 10340 307 34 9.3
Number of distribution transformers
(over head , pad mounted)		 station 4891 17056 21533 22437 359 31 1.4
Capacity of distribution transformers
(over head , pad mounted)

MVA

 1010 4419 5719 5956 489 35 1.4
6- Clients
Residential client 200830 524447 647697 671077 234 1.7 6.3
Public client 8450 12549 25012 27560 226 2.15 2.10
Agricultural client 716 916 1195 2105 194 92 76
Industrial client 1059 2754