ROANOKE, Va. (AP) -- -

Appalachian Power Co. is asking state regulators to approve two separate requests related to transmission line costs and infrastructure improvements.

One of the two requests before the Virginia State Corporation Commission could increase an average residential customer's monthly bill by nearly $4 beginning in May.

The Roanoke Times reports that the other would allow the company to make improvements to an existing transmission line.

Appalachian Power has about 500,000 customers in Virginia. It says the current bill for an average residential customer consuming 1,000 kilowatt hours per month is $111.01.
   Regulators have scheduled a public hearing on Feb. 13 in Richmond on the transmission rate increase request. A public hearing on the transmission line improvements filing has not yet been scheduled.