As I understand it, generator turbines are synchronized in a region and therefore one can exchange info by modulating the frequency (on the opposite side, on a

As I understand it, generator turbines are synchronized in a region and therefore one can exchange info by modulating the frequency (on the opposite side, on a small scale, there is probably a product on the consumer side: network-over-a-power-plug). https://preview.entsoe.eu/news/2018/03/06/press-release-continuing-frequency-deviation-in-the-continental-european-power-system-originating-in-serbia-kosovo-political-solution-urgently-needed-in-addition-to-technical/ https://preview.entsoe.eu/news/2018/03/06/press-release-cont... https://computer.howstuffworks.com/power-network.htm https://computer.howstuffworks.com/power-network.htm