Utility regulators have declined to deviate from an already established schedule for consideration of Mississippi Power Co.'s application for a planned $2.2 billion power plant in Kemper County.
Mississippi Power in June specifically asked the Public Service Commission to determine by Dec. 31 if it could bill pre-construction costs to its customers.
The PSC, in an order made public Friday, declined to do so.
The commissioners said they would consider pre-construction costs as part of the overall application review.
The PSC has already laid out a timetable by which it plans to make a final decision on the plant by May 1, 2010.