| Filed by Xcel Energy Inc. | ||
| Pursuant to Rule 425 under the Securities Act of 1933 | ||
| Subject Company: NRG Energy, Inc. | ||
| NRG Energy, Inc.’s Commission File No. 001-15891 |
| Filed by Xcel Energy Inc. | ||
| Pursuant to Rule 425 under the Securities Act of 1933 | ||
| Subject Company: NRG Energy, Inc. | ||
| NRG Energy, Inc.’s Commission File No. 001-15891 |