As Mesa residents continue to experience high temperatures into October, the financial impact of cooling their homes has led to nearly $4 million in unpaid electricity bills. In a city where temperatures often exceed 100 degrees, many homeowners and renters are facing challenges with high utility bills. According to a report by 12 News, around 1,500 customers of the City of Mesa Utilities are behind on payments, with the total amount owed approximately $3.94 million.