| Abbreviation | Definition |
|---|---|
| ACEPT | Australian Centre for Energy and Process Training |
| ACER | Agency for the Cooperation of Energy Regulators |
| ACERT | American Clean Energy Resources Trust |
| ACGE | American Coalition for Green Energy |
| ACME | Accelerated Climate Model for Energy |
| ACME | Accelerated Climate Modeling for Energy |
| ACME | Accelerated Computation of Materials for Energy |
| ACNG | America Compressed Natural Gas |
| ACSEP | Americans for Common Sense Energy Policies |
| ADED | All Day Energy Diet |
| ADEW | Adaptive Differential Energy Watermarking |
| ADHERE | Aberdeen Domestic Home Energy Reporting Engine |
| AE | Advanced Energy |
| AEA | Am Energy Alliance |
| AEA | American Energy Alliance |
| AEA | Association for Energy Affordability |
| AEA | Atomic Energy Act |
| AEBF | Asean Energy Business Forum |
| AEBs | Area Electricity Boards |
| AEC | Advanced Energy Consortium |