https://www.breitbart.com/europe/2019/08/10/uk-energy-firm-says-power-cut-was-not-caused-cyberattack/

two plants shut down simutaneously, after which others went off line to avoid "problems

power was shut off to whole parts of the country

1 million without power - including ie subways

conspiracy theory was that the power stations were using UBUNTU and MS WINDOWS10 and were hacked which is the only way 2 stations could go offline "at the same exact time" ... but the power company denies it happened that way

Thank you for posting this in the Fairfax section, it is completely relevant.