The Gainesville Regional Utilities (GRU) Authority unanimously voted Wednesday to change the tier structure and rates for residential electric customers. The changes will, based on 2023 customer data, lower the electric portion of bills for 59% of customers and cause no increase for another 24% of customers. For the 17% of customers who use more than 1,400 kilowatt hours (kWh) of electricity per month, the changes will result in an average increase of $5.52.