SPOKANE, Wash. (AP) -- Avista says natural gas wholesale prices are on their way back up after hitting record lows in 2012, so the Spokane-based utility is asking state regulators to approve a 9 percent rate hike for its customers in Washington.
The average residential monthly bill would increase about $5 to more than $63.
Avista also is seeking a 2 percent increase in residential electricity rates, which would increase the average monthly bill nearly $2 to more than $81.
Avista has asked for similar rate hikes for its customers in Idaho.
Avista has 340,000 electrical customers and 300,000 natural gas customers in Eastern Washington and Northern Idaho.