Headquartered in Baltimore, Constellation is Exelon's competitive retail and wholesale energy business. Constellation provides integrated energy solutions that help residential and business customers buy, manage and use energy, from electricity and natural gas procurement to renewable generation and conservation. The company provides products and services in natural gas, retail power, wholesale power, load response, energy efficiency and solar.

Constellation is the industry-leading retail and wholesale platform with
portfolio management and load management expertise that is unparalleled in the industry. Constellation is helping to drive a transformational shift in the commercial U.S. power sector as customers increasingly embrace — and demand — innovative tools to help them better manage energy
purchasing and consumption.

Constellation optimizes the company's generation portfolio through all commodity cycles and weather events to ensure an uninterrupted flow of power to meet demand.