Downed power lines, felled trees, branches, and other debris litter Naples, Fla. Hurricane Irma knocked out power to close to five million customers in Florida as of late Sunday evening, according to outage maps from the state’s utilities, which warned that some people may not regain electricity for weeks, despite billions of dollars in investments to strengthen the power grid in recent years. While Irma’s path has shifted west , Rob Gould, a vice president for Florida Power & Light Co., a subsidiary of NextEra Energy Inc., cautioned customers on the state’s east coast to remain vigilant about downed power lines, the fact their power might still go out and safety issues with home generators. “Let me be perfectly clear: Do not let your guard down, do not become complacent,” Mr. Gould said during a Sunday news conference—which was briefly interrupted because of a loss of power. “This is […]