On July 3 from around 00:20 till around 8:00, nearly the whole of Azerbaijan, except Nakchivan (which had its own independent station) and Artsakh (which was not under Azerbaijani control), had a major power outage. The reason was unexpectedly high temperatures which could not be handled by Mingachevir Electric Station (the main electricity supplier of country). Although outage lasted for quite long, it didn't cause any serious problems. Engineers started recovering electric supply immediately, starting from capital city Baku, and soon lights were on again in the country.