> If you keep reading to the next few sentences I point out that the utility has sunk costs, so I understand you point quite well already.

It's not that they have sunk costs, it's that they have ongoing costs. The grid cost does not drop when you send excess solar to a neighbor. To actually avoid grid costs you need to reduce your max watts in a way that the power company can rely on.

> Transmission savings are the big thing with distributed solar and storage. And transmission is the bottleneck for most projects looking to connect to the grid right now. Not only is it expensive, it's slow to build.

Storage can save on transmissions but it has to be set up the right way. Solar and storage working together can do even better, but also have to be set up the right way. Solar by itself doesn't make a big difference in peak transmissions.