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.