Regulators order end to Kemper rate increase, plan refunds

Regulators on Tuesday ordered Mississippi Power Co. to lower rates later this month and plan for customer refunds by November.

In issuing the order, the Mississippi Public Service Commission voted 3-0 to comply with a state Supreme Court order that found illegal a 2013 rate increase for the $6.2 billion plant.

The unit of Atlanta-based Southern Co. must roll back the 18 percent increase starting with the August billing cycle, which begins July 20. A residential customer using 1,000 kilowatt hours per month in electricity would see monthly bills fall to $121 from $144 currently. The average residential customer uses more power than that, and thus pays more.