Residential and Business Energy Solutions
We power some of America's largest companies. 
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Constellation SENIOR PLAYERS Championship
solar project in Emmitsburg Maryland
Constellation has been a proud sponsor of the Constellation SENIOR PLAYERS Championship since 2003 and we look forward to returning to Pittsburgh and Fox Chapel Golf Club, June 27-30. Learn more and buy tickets by clicking the link below:
About Constellation
Constellation, an Exelon company, is a leading competitive energy supplier, offering electricity, natural gas, solar and renewable energy products and services to homes and businesses across the United States and Canada. Constellation provides integrated energy solutions that help customers buy, manage and use energy. Over 1 million US residents and businesses rely on the Constellation family of companies for their energy supply. In addition, more than 90,000 commercial, industrial, public sector and institutional customers, including two-thirds of the Fortune 100, have selected us to help strategically manage energy.