Chicago, IL

Washington, DC

Conectiv Energy Supply, Inc.

Pepco Energy Services, Inc.

Cogenex Corporation

Constellation Energy Projects & Services Group Advisors, LLC

Constellation Eg, LLC

Luminace Solar Texas, LLC

Water & Energy Savings Corporation

Exelon Generation Company, LLC

Energy Performance Services, Inc.

New York, NY

Allentown, PA

Baltimore, MD

Cpower, Inc.

Cpower Energy, Inc.

Xe Acquisition Corp.

Constellation Energy Resources, LLC

Constellation Energy Group, Inc.

Consumerpowerline

Allentown, PA

Williamstown, MA

Powerplay, Inc.