average utility cost tempe
1 The average commercial electricity rate in Tempe is 8.84Â¢/kWh. 2  This average (commercial) electricity rate in Tempe is 7.24% less than the Arizona average rate of 9.53Â¢/kWh.  The average (commercial) electricity rate in Tempe is 12.39% less than the national average rate of 10.09Â¢/kWh.