NRG does own power generation, including substantial coal-fired, but also is moving away from that space. They provide retail electricity/gas service centered in Houston Texas (Reliant Energy) that is much more what would be called a utility. Power generation provides output to serve their retail customers in Texas providing a natural hedge. But the coal-fired generation is very old and dirty and will be retired. That exposes them to more electric market risk. They did make a large acquisition in 2023 to become a leading "smart home" provider. That business is both green and has considerable growth potential.