As part of the overall energy savings and renewable energy performance contract project, a 505 kW solar photovoltaic system was installed on the Daily Garage at BWI Marshall Airport. With 47 rows of 12 PV panels on each of the four parking bays, the solar system produces more than 619,000 kWh of electricity each year for the facility.

?Pepco Energy Services was a great partner to the Maryland Aviation Administration throughout the development, design, and installation of the photovoltaic system,? said Wayne Pennell, Maryland Aviation Administration Deputy Director ? Operations and Maintenance. ?We now have a showcase green project at BWI Marshall Airport that demonstrates the economic and environmental value that such projects can achieve.?

The renewable energy produced through the solar canopy reduces the airport?s annual carbon footprint by approximately 380 metric tons, thereby assisting the State of Maryland in meeting its ?going green? goal. In addition, the solar canopy provides for covered parking spaces on the top level of the garage.

The solar portion of the overall project was funded through the EmPOWER Clean Energy Communities grant program, through which the Maryland Aviation Administration received a $500,000 Project Sunburst solar grant from the Maryland Energy Administration.

?All of us at Pepco Energy Services are very proud to have been selected for this award,? said President and CEO, John Huffman. ?Helping our clients reduce the impact of their operations on the environment is one of our major goals when we start a project, and the opportunity to reduce energy use and emissions are two reasons why many of our employees come to work each day? to receive recognition for our efforts makes our jobs that much more gratifying.?

The $20.9 million project called on Pepco Energy Services to design and implement a total of 13 energy conservation measures to improve the overall energy efficiency of more than 30 airport buildings, including the main terminal, which covers more than 9 million square feet. The project saves the Maryland Aviation Administration approximately $2 million each year in energy costs.

The photovoltaic system was commissioned in September 2011, and the balance of the project will be completed in February 2012. The project will reduce the airport?s current energy and water usage by more than 18 percent, while also reducing carbon dioxide emissions by a total of 12,400 metric tons per year.

Pepco Energy Services has also completed similar projects for customers such as the Atlantic City Convention Center, NJ (2.3 MW) and the Pennsylvania Farm Show Complex and Expo Center, PA (120 kW). Pepco Energy Services has saved its clients more than $210 million in energy costs in the last decade alone and continues to help new customers reduce their energy usage.

For information on how Pepco Energy Services can provide similar services for your organization, please contact Patrick Sweeney at psweeney@pepcoenergy.com or (703) 253-1740, or visit the Pepco Energy Services? Web site for a complete list of services.

About Pepco Energy Services, Inc.

Pepco Energy Services, Inc., a wholly owned subsidiary of Pepco Holdings, Inc. (NYSE: POM), provides commercial, institutional, government and industrial customers with competitive energy efficiency services, including renewable energy and combined heat and power projects/plants.

Pepco Energy Services is not the same company as Potomac Electric Power Company (Pepco), the regulated utility; the prices and services of Pepco Energy Services are not set by the Public Service Commission; and you are not required to buy energy or other products and services from Pepco Energy Services in order to receive the same quality service from Pepco.

Information contained in this news release may include forward-looking statements, which should be considered in light of the risks inherent in the business of Pepco Holdings, Inc. and its subsidiaries, as discussed in public documents filed with the Securities and Exchange Commission.