Reliability Report -- 1999 - Pennsylvania Public Utility Commission

The graph below shows the distribution of causes of service outages
occurring during 2005 as a percentage of total outages. Equipment failure was
responsible for 24.4% of incidents, 27.9% of customers affected and 25.7% of
interruption minutes. Lightning caused 14.4% of the incidents, 14.7% of
customers affected and 17.4% of interruption minutes.
Metropolitan Edison Company
2005 Outage Causes
Wind
Vehicle
Vandalism
Unknown
UG Dig-Up
Trees - Preventable
Trees - Not Preventable
Switching Error
Previous Lightning
Overload
Other Utility - Non-Electric
Other Electric Utility
Object Contact With Line
Line Failure
Lightning
Ice
Human Error - Non-Company
Human Error - Company
Forced Outage
Fire
Equipment Failure
Customer Equipment
Contamination
Bird
Animal
Customer Minutes Interrupted
Customers Affected
Number of Incidents
0% 5% 10% 15% 20% 25% 30%
Percent of Outages
Pennsylvania Electric Company
Penelec’s reliability performance summary was filed as a joint report
submitted on behalf of the three Pennsylvania operating companies of
FirstEnergy: Met-Ed, Penelec and Penn Power.
On May 26, 2004, FirstEnergy filed a Petition for the Amendment of
Benchmarks. 24 On February 17, 2006, the Commission entered an Order
modifying the benchmarks and standards for the three FirstEnergy companies.
Penelec’s CAIDI benchmark was increased from 115 minutes to 117 minutes;
24 Docket No. P-00042115.
Electric Service Reliability in Pennsylvania 21