For The Years Ended December 31, 1997, 1996 and 1995
 
Note 10. Property, Plant and Equipment
 

A summary of property, plant and equipment by classification as of December 31, 1997 and 1996 is as follows:

 
In Millions 1997  1996 
Electric Plant In Service
  Production $ 7,575.5 $ 7,278.4
  Transmission 1,566.3 1,543.7
  Distribution 4,517.5 4,303.9
  General plant 1,118.6 1,068.3
  Nuclear fuel 643.9 604.8
  Construction work in progress 222.5 389.0
 
    Total electric plant in service 15,644.3 15,188.1
Natural Gas Plant In Service
  Transmission 6,094.4 5,994.1
  Gathering 812.5 643.0
  Processing 502.4 508.4
  Underground storage 488.8 450.6
  LNG facilities and vessels 751.7 751.0
  General plant 310.7 348.7
  Construction work in progress 159.9 126.7
 
    Total natural gas plant in service 9,120.4 8,822.5
Other Property and Equipment 683.4 457.6
Total Property, Plant and Equipment 25,448.1 24,468.2
Less accumulated depreciation (including amortization of nuclear fuel: 1997 - $370.0 million; 1996 - $363.3 million) 9,712.2 9,199.1
 
    Net property, plant and equipment $ 15,735.9 $ 15,269.1
 
 
 

A summary of accumulated depreciation for property, plant and equipment by classification as of December 31, 1997 and 1996 is as follows:

 
In Millions 1997  1996 
Electric Plant In Service $ 6,067.7 $ 5,801.8
Natural Gas Plant In Service 3,602.9 3,365.8
Other Property and Equipment 41.6 31.5
 
    Total Accumulated Depreciation $ 9,712.2 $ 9,199.1
 
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