2 North American 4 You

Ok, so that's really a major difference here...

In the EU we have heavily liberated energy markets, which let me choose between dozens of different electricity suppliers, each with its own specific value proposition.
In many cases this means that they just compete with each other to deliver the lowest price, but there are also specialized suppliers, e.g. offering custom time or volume based rates.
In my case it is a supplier that is a Greenpeace-originated consumer-owned cooperative (yes, I am one of the owners of the company supplying me with electricity:-) ), specializing in regenerative energy.

These supply companies then pay a part of their revenue to the local providers, reimbursing them for the use of their physical infrastructure.