So far so good, except this is what Rifkin means by a distributed network. There will still be electric companies as hubs but their function will change to more of a being a service provider and less of being a power provider, given the nature of the smart grid. And the node of fossil fuels will not immediately be eliminated but there will be competing hubs in the renewable energy sector, thus diminishing oil's dominant hub. And depending on governmental hubs and which policies are enacted, this will determine to what degree and on what timetable this transition occurs.
Rifkin notes this is a process of democratizing the economy, making it distributed capitalism, where a major regime of attraction, energy, is put more directly in the hands of the people when they can generate their own electricity. Yes, this form of democracy still requires the hubs of representatives in government, managers in offices, and energy companies as hubs that monitor and distribute the energy created by individuals. There are still hubs in the network but those hubs are transformed into more equitable hubs intent on fair distribution instead of unfair accumulation at the top 1%. One would think Rifkin would be an exemplar for Bryant's democracy of objects, instead of apparently some form of "anarcho-communist fantasy." Tell that to the EU, which is implementing this fantasy into a reality as we speak.
Note: A search of Bryant's blog for Rifkin reveals zero hits. So I'm not saying he directly criticizes Rifkin but rather apparently the type of distributed networking he promotes. He can prove me wrong if he so chooses.