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Competitive Efficiency: A Ranking of U.S. Electric Utilities

Fortnightly Magazine - June 15 1997

Power, Midwest Power,

MidAmerican * 93.38% 5.71%

30 Dayton Power and Light Co. 93.05% 2.08%

31 Carolina Power & Light Co. 92.91% 2.32%

32 Wisconsin Public Service Corp. 92.81% 3.31%

33 Empire District Electric Co. 92.65% 0.68%

34 Kansas City Power & Light Co. 92.51% 8.31%

35 Public Service Co. of Colorado 92.48% 1.53%

36 Gulf States Utilities Co. 92.39% 4.22%

37 Pennsylvania Pwr. & Light Co. 92.33% 2.84%

38 Cipsco,

Central Illinois Public Service * 92.32% 9.05%

39 Potomac Electric Power Co. 92.06% -0.27%

40 Interstate Power Co. 91.90% 0.98%

41 Illinois Power Co. 91.87% 8.34%

42 Florida Power Corp. 91.66% 0.81%

43 Iowa-Illinois Gas & Electric Co. 91.59% 1.48%

44 Consumers Power Co. 91.57% 0.90%

45 Nevada Power Co. 91.51% -0.18%

46 Otter Tail Power Co. 91.50% 4.50%

47 Detroit Edison Co. 91.25% 2.93%

48 Tampa Electric Co. 91.10% -0.58%

Relative

Efficiency

Relative Change from

Rank Utility Efficiency '90 to '95

49 Commonwealth Edison Co. 91.01% 2.83%

50 Ohio Edison Co. 90.95% 1.77%

51 Baltimore Gas and Electric Co. 90.74% 6.79%

52 Central Illinois Light Co. 90.64% 3.21%

53 Central Louisiana Electric Co. 90.57% 2.32%

54 Delmarva Power & Light Co. 90.41% 4.35%

55 NIPSCO Industries 90.10% 3.98%

56 St. Joseph Light & Power Co. 89.71% 4.25%

57 Utilicorp United 89.65% 3.45%

58 Iowa Electric Light & Power Co.,

IES Utilities* 89.04% 12.13%

59 New York State

Electric & Gas Corp. 88.83% 1.35%

60 Philadelphia Electric Co.,

PECO Energy Co. * 88.75% 6.73%

61 General Public Utilities Corp. 88.60% 0.98%

62 Public Svc. Enterprise Group 88.42% 1.32%

63 Arizona Public Service Co. 88.27% 1.73%

64 Niagara Mohawk Power Corp. 87.75% 0.52%

65 MDU Resources Group 87.23% 1.34%

66 Centerior Energy Corp. 86.86% 5.50%

67 Duquesne Light Co. 86.84% 4.30%

68 Pacific Gas and Electric Co. 86.77% -0.67%

69 Sierra Pacific Power Co. 86.71% 0.32%

70 Northwestern Public Svc. Co. 86.33% 5.90%

71 Public Svc. Co. of New Mexico 86.26% 9.38%

Relative

Efficiency

Relative Change from

Rank Utility Efficiency '90 to '95

72 Cent. Hudson Gas & Elec. Corp. 85.98% 0.61%

73 Tucson Electric Power Co. 85.82% 6.44%

74 So. California Edison Co. 85.78% 1.37%

75 El Paso Electric Co. 85.77% 4.87%

76 New England Electric System 85.45% 0.45%

77 Commonwealth Energy System 85.25% 5.02%

78 San Diego Gas & Electric Co. 85.22% 1.54%

79 Green Mountain Power Corp. 85.18% -2.17%

80 Northeast Utilities 85.13% 3.38%

81 Rochester Gas & Electric Corp. 84.99% 1.37%

82 Black Hills Corp. 84.90% 0.67%

83 Long Island Lighting Co. 84.60% -3.68%

84 Cent. Vermont Public Svc. Corp. 84.30% 4.73%

85 United Illuminating Co. 83.88% 3.54%

86 Orange and Rockland Utilities 83.41% 7.63%

87 Consolidated Edison Co.

of New York 83.25% 3.25%

88 Boston Edison Co. 82.97% 1.75%

89 Central Maine Power Co. 82.87% 2.08%

90 Hawaiian Electric Co. 81.31% -1.78%

91 Eastern Utilities Associates 80.85% 5.42%

92 Maine Public Service Co. 80.08% 0.83%

93 Upper Peninsula Energy Corp. 78.44% 1.39%

94 Bangor Hydro-Electric Co. 78.32% -1.29%

Average Efficiency 90.49% 2.47%

*Companies merged.

Table 2. Comparison of Top and Bottom Performers

Variable Top 3 companies Bottom