It's worth pointing out the US already does this. For instance, the Tennessee Valley Authority is a Federally-owned utility, and the sixth largest in the count

It's worth pointing out the US already does this. For instance, the Tennessee Valley Authority is a Federally-owned utility, and the sixth largest in the country. There are lots of other examples like this outside of utilities. The US Postal Service, Amtrak, the Export-Import Bank, and many others.