https://www.express.co.uk/news/science/1587983/london-power-cut-east-canary-wharf-limehouse-dlr-traffic-lights-internet-down
https://finance.yahoo.com/news/london-power-outage-disrupts-citi-170911808.html
https://www.dailymail.co.uk/news/article-10666793/Londoners-left-without-power-nearly-24-hours.html
h/t solarplex