Your electric bill may soon be going DOWN. The drop is due to an unusually wet summer, according to the TVA.

John McCormick, Tennessee Valley Authority’s vice president for river operations, said in a statement that the rain kept the utility’s hydroelectric dams, which provide the cheapest source of energy, working in overdrive. The end result, lower electric bills because there was no need to purchase expensive energy sources outside of the Volunteer State.

The rainfall has led to a record-setting year for TVA’s 29 hydroelectric dams, which produced more energy in 2013 than at any other time in the past 80-years. 

The TVA electric production rate factors into the cost of local electricity because places like Middle Tennessee Electric purchase electric power from the Tennessee Valley Authority.