Table 3. Unscheduled and Preventive Maintenance Costs

Year No. of U & PM
Visits/Year
 		Burdened Labor
Cost
 		Burdened
Parts Cost
 		U & PM Cost/WT
 		U & PM Cost/WT
(cents/kWh)
 		U & PM Cost for
Fleet (in millions)
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
 		4
4
3.75
3.5
3.25
3
2.75
2.5
2.25
2.25
-
 		$6,336
$6,336
$5,940
$5,544
$5,148
$4,752
$4,356
$3,960
$3,564
$3,564
-
 		$3,750
$3,750
$3,516
$3,281
$3,047
$2,813
$2,578
$2,344
$2,109
$2,109
-
 		$10,086
$10,086
$9,456
$8,825
$8,195
$7,565
$6,934
$6,304
$5,673
$5,673
-
 		0.55
0.55
0.51
0.48
0.45
0.41
0.38
0.34
0.31
0.31
-
 		$0.7
$2.7
$6.2
$11.7
$20.5
$31.8
$43.4
$54.9
$67.2
$81.4
$89.0

Back to Article