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PROPERTY, PLANT AND ACCUMULATED DEPRECIATION (Tables)
9 Months Ended
Sep. 30, 2012
Notes To Consolidated Financial Statements [Abstract]  
Schedule of Public Utility Property, Plant, and Equipment [Text Block]

4.       PROPERTY, PLANT AND EQUIPMENT AND ACCUMULATED DEPRECIATION

 

The following tables summarize the NU, CL&P, NSTAR Electric, PSNH and WMECO investments in utility property, plant and equipment:

        
   As of September 30, 2012 As of December 31, 2011
(Millions of Dollars)NU NU
Distribution - Electric$ 11,275.0 $6,540.4
Distribution - Natural Gas  2,198.4  1,247.6
Transmission  5,127.3  3,541.9
Generation  1,147.3  1,096.0
Electric and Natural Gas Utility 19,748.0  12,425.9
Other (1)  432.9  305.1
Property, Plant and Equipment, Gross  20,180.9  12,731.0
Less: Accumulated Depreciation     
 Electric and Natural Gas Utility   (4,990.4)  (3,035.5)
 Other  (166.6)  (120.2)
Total Accumulated Depreciation  (5,157.0)  (3,155.7)
Property, Plant and Equipment, Net  15,023.9   9,575.3
Construction Work in Progress  1,279.9  827.8
Total Property, Plant and Equipment, Net$ 16,303.8 $10,403.1

(1)       These assets are primarily comprised of building improvements at RRR and software and equipment at NUSCO as of September 30, 2012 and December 31, 2011, and telecommunications equipment at NSTAR Communications, Inc. as of September 30, 2012.

  As of September 30, 2012 As of December 31, 2011
     NSTAR          NSTAR      
(Millions of Dollars)CL&P Electric PSNH WMECO CL&P Electric(1) PSNH WMECO
Distribution$ 4,628.1 $ 4,465.6 $ 1,498.0 $ 720.1 $ 4,419.6 $ 4,334.4 $ 1,451.6 $ 704.3
Transmission  2,736.3   1,438.2   570.7   361.8   2,689.1   1,386.9   546.4   297.4
Generation  -   -   1,126.1   21.2   -   -   1,074.8   21.2
Property, Plant and                       
 Equipment, Gross  7,364.4   5,903.8   3,194.8   1,103.1   7,108.7   5,721.3   3,072.8   1,022.9
Less: Accumulated Depreciation  (1,665.4)   (1,524.0)   (935.0)   (252.1)   (1,596.7)   (1,436.0)   (893.6)   (240.5)
Property, Plant and Equipment, Net  5,699.0   4,379.8   2,259.8   851.0   5,512.0   4,285.3   2,179.2   782.4
Construction Work in Progress  370.0   249.0   71.6   406.3   315.4   162.0   77.5   295.4
Total Property, Plant and                        
 Equipment, Net$ 6,069.0 $ 4,628.8 $ 2,331.4 $ 1,257.3 $ 5,827.4 $ 4,447.3 $ 2,256.7 $ 1,077.8

  • NSTAR Electric amounts are not included in NU consolidated as of December 31, 2011.