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Public Service Enterprise Group is the holding company for a regulated utility (PSE&G) and other nonregulated businesses such as nuclear power generation and clean energy projects. PSE&G provides regulated gas and electricity delivery services in New Jersey to a combined 4.2 million customers. Public Service Enterprise Group also operates the Long Island Power Authority system. In 2022, the company sold its gas and oil power plants in the mid-Atlantic, New York, and the Northeast.
Monolithic Power Systems is an analog and mixed-signal chipmaker, specializing in power management solutions. The firm's mission is to reduce total energy consumption in end systems, and it serves the computing, automotive, industrial, communications, and consumer end markets. MPS uses a fabless manufacturing model, partnering with third-party chip foundries to host its proprietary BCD process technology.