| Abbreviation | Definition |
|---|---|
| FBES | Flow Battery Energy Storage |
| FCEM | Forward Clean Energy Market |
| FCHEA | Fuel Cell & Hydrogen Energy Association |
| FCRPS | Federal Columbia River Power System |
| FDED | Flux Density Energy Distribution |
| FDEO | Frequency Domain Energy Operator |
| FEAC | Fusion Energy Advisory Committee |
| FEBI | Focus Energy Balance Indicator |
| FEC | Fuel and Energy Consumption |
| FECE | Foundation for Energy Climate and Environment |
| FED | Food Energy Direction |
| FED | Forecasting of Electricity Demand |
| FEDS | Facility Energy Decision System |
| FEE | Fabric Energy Efficiency |
| FEE | Fair Energy Exchange |
| FEED | Field Emission Energy Distribution |
| FEEL | Fusion Energy Engineering Laboratory |
| FEES | Field Electron Energy Spectroscopy |
| FEF | Future Energy Forum |
| FEP | Forum Energy PLC |