| **Exhibit                21(a)**                      |   |                                        |
|-------------------------------------------------------|--------|---------------------------------------------|
| **PPL                Corporation**                    |   |                                        |
| **Subsidiaries                of the Registrant**     |   |                                        |
| **As                of December 31, 2006**            |   |                                        |
|                                                  |   |                                        |
|                                                  |   |                                        |
| **Company                Name**                       |   | **State                or Jurisdiction of** |
| **Business                Conducted under Same Name** |   | **Incorporation/Formation**                 |
|                                                  |   |                                        |
| PPL                Electric Utilities Corporation     |   | Pennsylvania                                |
|                                                  |   |                                        |
| PPL                Energy Funding Corporation         |   | Pennsylvania                                |
|                                                  |   |                                        |
| PPL                Energy Supply, LLC                 |   | Delaware                                    |
|                                                  |   |                                        |
| PPL                Investment Corporation             |   | Delaware                                    |
|                                                  |   |                                        |
| PPL                Global, LLC                        |   | Delaware                                    |
|                                                  |   |                                        |
| PMDC                International Holdings, Inc.      |   | Delaware                                    |
|                                                  |   |                                        |
| PPL                EnergyPlus, LLC                    |   | Pennsylvania                                |
|                                                  |   |                                        |
| PPL                Generation, LLC                    |   | Delaware                                    |
|                                                  |   |                                        |
| PPL                Montana Holdings, LLC              |   | Delaware                                    |
|                                                  |   |                                        |
| PPL                Montana, LLC                       |   | Delaware                                    |
|                                                  |   |                                        |
| PPL                Susquehanna, LLC                   |   | Delaware                                    |
|                                                  |   |                                        |
| WPD                Holdings Ltd.                      |   | United                Kingdom               |