Bridgit Bowden/WPRJenny Peek/WPRA fire at a Madison power substation knocked out power to thousands, forcing closures and traffic snarls through much of the day Friday, July 19, 2019. Jenny Peek/WPRJenny Peek/WPRJenny Peek/WPRThick, black smoke blanketed Madison’s east side after an explosion at Madison Gas and Electric at about 7:40 a.m. Friday, July 19, 2019. Jenny Peek/WPRJenny Peek/WPRJenny Peek/WPRJenny Peek/WPRJenny Peek/WPRJenny Peek/WPRFestival Foods on East Washington Avenue hands out bottles of water to Madison emergency workers during the fire at Madison Gas and Electric. Jenny Peek/WPRJenny Peek/WPRMadison firefighters and Madison Gas and Electric staff after a fire was put out at the utilities substation on North Livingston Street on Friday, July 19, 2019. Jenny Peek/WPR