City of Lethbridge The City of Lethbridge is the default electricity retailer for residential, small business, and farm consumers in Lethbridge. ResidentialRate of Last ResortElectricity$0.09975/kWhSmall BusinessRate of Last ResortElectricity$0.09975/kWh Compare retailer plans in our Cost Comparison Tool. Compare Rates Phone (403) 320-3111 Toll free View Website