| Abbreviation | Definition |
|---|---|
| GELF | Green Energy Loan Fund |
| GEM | Gibbs Energy Minimizer |
| GEM | Global Energy Monitor |
| GEMI | Gutierrez Energy Management Institute |
| GEMS | Green Energy Maintenance Systems |
| GENE | General Electric Nuclear Energy |
| GENI | Global Energy Network Institute |
| GENI | Global Energy Network International |
| GEO | Green Energy Ohio |
| GEO | Green Energy Options |
| GEP | Global Energy Perspective |
| GEPR | Global Energy Policy Research |
| GERC | Green Energy Regional Center |
| GERC | Green Energy Research Centre |
| GERL | Geo Energy Resources Ltd |
| GESA | Global Energy Storage Alliance |
| GESA | Guaranteed Energy Savings Act |
| GESC | Global Energy Supply Corporation |
| GESI | Green Energy Sol Ind |
| GESI | Green Energy Solutions Industries |