Collective energy self-consumption, aka "selling electricity to your neighbor"

I believe this is a very good initiative. France is allowing collective self consumption.

It means that in an appartement building or in a neighborhood (up to 2km radius) people can organize in a collective to redistribute electricity to each other. If someone has extra production one day then he can redistribute to other people in the collective. For free or at the price they agreed upon in the collective.

It does not need any extra hardware, it's using the existing installation from the national utility grid.

This is exactly how I imagine a solarpunk community would work.