The state's Public Service Commission will hear testimony next week on how much money Georgia Power has spent on what is expected to be a $14 billion project. The Southern Co. subsidiary says the project remains on schedule and under budget.

The commission decided last year that Georgia Power needed two more nuclear reactors at the site to meet the state's future electricity needs. But federal regulators are at least months away from deciding whether the project can proceed.

Georgia expanded its monitoring of construction costs after the last reactors at Plant Vogtle were built late and went over budget