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