Yeah, been trivial forever. In the US it became a requirement for new all utility scale non-synchronous generators a decade ago. And then a bunch of statewide r

Yeah, been trivial forever. In the US it became a requirement for new all utility scale non-synchronous generators a decade ago. And then a bunch of statewide rules for rooftop solar as well. https://www.ferc.gov/news-events/news/ferc-moves-implement-fast-act-provisions-critical-infrastructure-information https://www.ferc.gov/news-events/news/ferc-moves-implement-f...