NRG Energy, Inc., together with its subsidiaries, operates as an energy and home services company in the United States and Canada. It operates through the Texas, East, West/Other, Vivint Smart Home, and Corporate Activities segments. The company offers retail electricity, energy management, demand response and virtual power plant programs, carbon offsets, smart home security, and automation services. It also offers system power, distributed and backup generation, energy storage, energy management, renewable and low-carbon products, and carbon management solutions for large business and commercial customers; a cloud-based home platform, including hardware, software, sales, installation, customer service, technical support, and professional monitoring solutions; and generation portfolio incl…