NRG Energy, Inc. operates as a major independent power producer and retail energy provider, bridging wholesale power generation and retail electricity sales. The company serves over 7 million retail customers across the United States and Canada, with its largest operational footprint in Texas. NRG's generation fleet boasts approximately 25 gigawatts of capacity, predominantly fueled by natural gas, but also including coal, nuclear, and renewable assets. Beyond traditional energy supply, NRG offers energy management, demand response, and virtual power plant programs. Following its acquisition of Vivint Smart Home, the company has expanded into consumer services, providing smart home security and automation solutions integrated with energy management.