Exhibit 10.5(b) Facility Site Lease Agreement (Dickerson L2) between Southern Energy Mid- Atlantic, LLC, Dickerson OL2 LLC and Southern Energy MD Ash Management, LLC dated as of December 19, 2000 Facility Site Lease Agreement (Dickerson L3) between...

                                                                 Exhibit 10.5(b)

Facility Site Lease Agreement (Xxxxxxxxx L2) between Southern Energy Mid-
Atlantic, LLC, Xxxxxxxxx OL2 LLC and Southern Energy MD Ash Management, LLC
dated as of December 19, 2000

Facility Site Lease Agreement (Xxxxxxxxx L3) between Southern Energy Mid-
Atlantic, LLC, Xxxxxxxxx OL3 LLC and Southern Energy MD Ash Management, LLC
dated as of December 19, 2000

Facility Site Lease Agreement (Xxxxxxxxx L4) between Southern Energy Mid-
Atlantic, LLC, Xxxxxxxxx OL4 LLC and Southern Energy MD Ash Management, LLC
dated as of December 19, 2000