State regulators are scheduled to decide this week whether to grant Mississippi Power Co.’s request for a 9.2 percent fuel adjustment increase.

The 9.2 percent requests is for residential customers. It is higher for business and industrial users.

Company spokeswoman Cindy Webb says the increase is not the utility’s largest annual fuel adjustment. That was 10 percent in 2006. In 2008 Mississippi Power customers paid a 4 percent fuel-adjustment increase, and Webb says there were decreases in 2002 and 2003.

“It depends on the fuel markets,” she said.

Regulators say the dollar-for-dollar “pass-through,” in a regulated market such as Mississippi’s, allows the utility to pass on the cost of doing business to the customer.