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For Immediate Release
Utility To Spend $256.5 Million on Reliability Over Next Five Years
WASHINGTON - Pepco today outlined a six-point reliability plan that advances work on existing programs as well as initiates new activities. These programs are intended to increase substantially the reliability of the distribution system across Maryland by reducing both the frequency and duration of outages for our customers. The total cost of this work over the next five years is estimated to be in excess of a quarter billion dollars and increases our expenditures by $100 million over the next five years.
"This is not just Pepco's plan, it's the community's plan,' said Thomas H. Graham, President, Pepco Region. "Pepco realize that reliability enhancement is a critical issue for our customers. This is not a sprint but a marathon. By executing this plan over the next five years, we will further reduce both the frequency and duration of outages. This is our commitment to our customers."
Summary - Pepco Maryland Data is in millions
1. Enhanced Vegetation ManagementEnhanced vegetation management includes tree trimming along public rights of way to obtain increased clearance between the overhead electric wires and existing trees. In addition to tree trimming, Pepco also will work with counties, communities and homeowners to remove trees that are dead, in poor health or would damage the distribution system if they were to fall.
2. Priority FeedersEach year Pepco selects feeders across Maryland that we determine are the least performing feeders. We perform detailed investigations to determine the cause of outages and necessary corrective actions to reduce the number of outages. A feeder is one electric distribution line that supplies electric power to up to 1,100 customers within a specific geographic area. We are expanding this program by 45 percent.
3. Load GrowthEach year Pepco evaluates the need to add or upgrade feeders in order to reliably supply new customers and support increased usage required by existing customers. This program is part of our long-established system planning process that ensures the continued availability of safe and reliable power for our customers.
4. Distribution AutomationDistribution automation involves installing advanced control systems across the distribution system to allow the electric system to identify faults and perform switching automatically. These technologies will automatically isolate the failed pieces of equipment and restore most of the affected customers within minutes of the failure. Pepco was awarded a $15 million Department of Energy Smart Grid Investment Grant to help fund the advancement of this technology.
5. Underground Residential Distribution (URD) Cable ReplacementPepco has a long-standing project to replace cable that generally was installed during the 1970s. This program replaces cable to prevent future failures and increases the reliability of the distribution system for customers supplied from the underground system. Since 2007, Pepco has upgraded more than 1.2 million feet (230 miles) of underground cable across Maryland at a cost of $27 million. We are planning to expand this program by 20 percent.
6. Selective Undergrounding/Substation ImprovementsAs Pepco evaluates the performance of individual feeders, the need to perform more aggressive modification to the system is identified. This approach to improving reliability has produced significant benefits, but, in some cases, still has not achieved the needed level of reliability. In these limited areas that traditional modifications on the overhead system have not produced desired results, we will evaluate the possibility of selectively replacing the overhead system with an underground system.
In addition, measures already are being taken to harden the high-voltage substation supply lines to reduce the number of tree-related outages. By increasing the reliability of the supply lines, we increase the reliability of the substation, which also increases the reliability of 12 to 15 individual distribution feeders supplied by each substation.
Pepco, a subsidiary of Pepco Holdings, Inc. (NYSE: POM), delivers safe, reliable and affordable electric service to more than 778,000 customers in Maryland and the District of Columbia.