| Answer | Crossword Clue |
|---|---|
| EPA | Energy Star org. |
| EPA | Energy Star program org. |
| EPA | Org. that promotes Energy Star Day |
| EPA | Org. that awards the Energy Star label |
| EPA | Org. that began the Energy Star program |
| NRC | Atomic energy org. |
| AEC | Nuclear-energy org. |
| AEC | Former energy org. |
| OPEC | Energy-focused org. |
| AEC | Former nuclear energy org. |
| OPEC | Org. with lots of energy |
| OPEC | Org. that's got a lot of energy |
