| Abbreviation | Definition |
|---|---|
| EMRL | Energy Materials Research Laboratory |
| EMS | Energy Maintenance Services |
| EMU | Energy Matter Unit |
| EMU | Energy Monitoring Unit |
| END | Energy Never Dies |
| ENE | endless networks of energy |
| ENE | Entertainment New Energy |
| ENE | environment and energy |
| ENEC | Emirates Nuclear Energy Corporation |
| ENI | Energy Needs Ireland |
| ENOM | Energy Network Object Model |
| ENOUGH | Energy Needed Offshore Under Gas Hikes |
| ENRE | Energy Natural Resources and the Environment |
| ENS | Energy Not Supplied |
| EOC | Energy Outreach Colorado |
| EOCM | Energy Opportunities Capital Management |
| EOD | Explosive Ordnance Disposal |
| EOIZ | Energy Open Innovation Zone |
| EOL | ENERGY ONE LIMITED |
| EON | Energy Observatory Network |