Re Estonia - it is integrated into EU wide power grid, 99% households have smart meters, reliability is 99.99% etc, all of its grid is inspected by drones. The only thing Estonian grid hasn't done is achieved sentience.

https://e-estonia.com/estonia-the-only-country-in-the-world-... https://windeurope.org/news/power-shift-how-the-baltic-synch...