| Abbreviation | Definition |
|---|---|
| AEC | Alternative Energy Club |
| AECB | Afghan Energy Capacity Building |
| AECB | Atomic Energy Control Board |
| AECL | Active Energy Control Ltd |
| AECL | Atomic Energy of Canada Limited |
| AECM | Atomic Energy Commission Manual |
| AECO | Alberta Energy Company Other |
| AECP | Atomic Energy Commission of Pakistan |
| AECT | Auckland Energy Consumer Trust |
| AEDB | Alternate Energy Development Board |
| AEDB | Alternative Energy Development Board |
| AEDC | American Energy Development Corp |
| AEDG | Advance Energy Design Guide |
| AEDG | Advanced Energy Design Guides |
| AEDS | Atomic Energy Detection System |
| AEE | Activity Energy Expenditure |
| AEE | Advanced Energy Economy |
| AEE | Alternative Energy Engineering |
| AEE | Alternative Energy Enterprise |
| AEE | Asymptotic Effective Energy |