Thousands of people were suddenly left without power after a "loud bang" was heard and the National Grid apologised for the sudden outage. Hundreds of homes were without electricity after a "high voltage incident" at around 6.40pm in the area of Plymouth . The earlier outage caused some street lights to go out in roads. The National Grid said in a statement: "We are aware of this power cut outage which was raised at 6:40pm this evening and our engineers are working to get the power returned as