ST. PAUL — The public has a chance to weigh in on Xcel Energy’s proposed rate increase at upcoming hearings across the state in September. ADVERTISEMENTXcel is Minnesota’s largest electric utility, with about 1.3 million electric customers in the state. “We are committed to meeting our state’s growing demand for electricity, maintaining reliable service, working toward a cleaner energy future and keeping costs low for our customers,” Xcel said in a statement. If the Public Utilities Commission approves a final rate that’s lower than the interim amount, customers will receive a refund. ADVERTISEMENTThe Minnesota Public Utilities Commission has scheduled public hearings on the proposed rates, beginning Monday night in Stillwater.