The Louisiana Public Service Commission is scheduled to vote Wednesday on a formula that would result in a refund for Entergy Corp. electricity customers.

If approved by the five elected regulators at a special meeting being held in the Louisiana Supreme Court building, in the French Quarter of New Orleans, the refunds would appear as credits on regular monthly electricity bills.

PSC Commissioner Foster Campbell, of Bossier Parish, wants the refunds to be paid in one month.

“Bills could remain high in October based on September electricity usage,” Campbell said.

“A one-time refund makes more sense here than spreading the refunds over several months,” he said.

How much a particular customer would receive is based on how much electricity is bought each month. A typical residential customer of Entergy Gulf States Louisiana, L.L.C., would receive about $15, Campbell said.

Entergy Gulf States services parishes roughly between Baton Rouge and the Texas border along Interstate 10.

Typical residential customers of Entergy Louisiana, LLC, which covers much of the area from suburban New Orleans to north Louisiana, would receive about $8 on upcoming bills.

The refunds stem from recalculation of prior-year refunds already awarded to Louisiana Entergy customers by the Federal Energy Regulatory Commission, called FERC.

The PSC asked FERC to correct flawed refund calculations made by Entergy for 2007, 2008 and 2009.

FERC ordered refunds to Entergy Louisiana of about $18.9 million and to Entergy Gulf States of about $17.2 million.