KNOXVILLE (AP) — Tennessee Valley Authority residential customers will pay a lower fuel cost on September bills, with the decrease ranging from 50 cents to $1.50.

The Knoxville-based utility said in a statement Monday that the lower monthly fuel cost is largely due to reduced demand.

TVA's fuel cost raised average monthly bills in August for residential customers by up to $1, due mainly to higher expenses for coal and purchased power during June.

The utility in July added up to $6 to bills in response to the severe weather in late April.

TVA supplies power to about 9 million people in Tennessee, Kentucky, Alabama, Mississippi, Georgia, North Carolina and Virginia.