[herewego]

Distributed energy resources eliminate a large portion of the transmission cost, leaving only the distribution grid in an idealized/future-state scenario (as I assume you’re talking about). In the summer, you lower the solar output so as not to overload the s distribution grid.

Also, batteries come in several long-term flavors. Thermal sand batteries are able to provide many months of energy storage today. A mid-term future will surely include even longer term storage as we develop improved storage technology. LiPo batteries are a bridge storage solution.