Variable rate
Variable rate means a per-MWt fee factor applied to all bundled units on site with a licensed thermal power rating less than or equal to 2,000 MWt. For the first bundled unit on a site with a licensed thermal power rating greater than 250 MWt and less than or equal to 2,000 MWt, the variable rate is based on the difference between the maximum fee and the minimum fee, divided by 1,750 MWt (the variable fee licensed thermal rating range). For additional bundled units with a licensed thermal power rating less than or equal to 2,000 MWt, the variable rate is based on the maximum fee divided by 2,000 MWt.