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Union of Concerned Scientists

Geography

As depicted in Figure 4, reactors that have experi- enced year-plus outages can be found from sea to shining sea and plenty of points in-between.

Figure 5 shows that Alabama tops the list of states with the most year-plus reactor outages (six), followed closely by Michigan and New York with five each.

Figure 6 (p. 14) therefore plots the percent- age of a state’s reactors that have experienced year-plus outages. By this measure, Alabama still ranks worst, with a year-plus outage rate of 120 percent—the state’s five nuclear reactors experi- enced a total of six extended outages. Colorado, Maine, Maryland, Massachusetts, and Tennessee share a year-plus outage rate of 100 percent.

As in the case of reactor ownership, the raw numbers of outages by state may be unfair to Alabama because it had a larger fleet of operating reactors than many other states.

As depicted in (Figure 7, p. 15), most year- plus reactor outages have occurred in NRC Region I (Northeast) followed by Regions II (Southeast), III (Midwest), and IV and V

Figure 3. Percent of Reactor Fleet Experiencing Year-plus Outages

250%

200%

200%

150%

150%

150%

100%

100%

100% 100% 100%

100%

100% 100%

100%

100%

100%

66.7%

60%

50%

50% 50%

50% 50%

50%

50%

40%

33.3%

33.3%

33.3%

15.4%

0%

Arizona Public Service Company Baltimore Gas & Electric Boston Edison Carolina Power & Light Company Commonwealth Edison Consumers Power Company

Detroit Edison Company FirstEnergy Nuclear Operating Company

Florida Power Corporation Florida Power & Light Company General Public Utilities

Illinois Power Company

Indiana Michigan Power Company Maine Yankee Atomic Power Company New York Power Authority Niagara Mohawk Power Corporation

Northeast Utilities Philadelphia Electric Company

Power Reactor Development Corporation Public Service Company of Colorado Public Service Electric & Gas Company

Sacramento Municipal Utility District Southern California Edison Company

STP Nuclear Operating Company Tennessee Valley Authority Virginia Electric and Power Company

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