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Constellation Energy Resources, LLC

    Service Provider
  • 800 Boylston Street
    Boston, Massachusetts
    USA 2199
    (877) 977-9995

Constellation, an Exelon company, is a leading competitive supplier of power, natural gas, renewable energy and energy management products and services for homes and businesses across the continental US. We provide integrated energy solutions—from electricity and natural gas procurement and renewable energy supply to demand-side management solutions—that help customers strategically buy, manage and use their energy. More than 100,000 commercial, industrial, public sector, government and institutional customers, including two-thirds of the Fortune 100, and more than 1 million residential customers rely on our commitment to innovation, dependability, transparency and service. That is the kind of value you and your communities can expect from Constellation.



Primary Location

800 Boylston Street
Boston, Massachusetts
USA 2199
(877) 977-9995