| Abbreviation | Definition |
|---|---|
| MEPS | Maximum Energy Performance Standards |
| MEPS | Medium Energy Particle Spectrometer |
| MEPS | Minimum Energy Performance Standard |
| MERA | Malawi Energy Regulatory Authority |
| MERA | Mineral and Energy Resource Assessment |
| MERN | Mining and Energy Research Network (UK) |
| MESA | Modular Energy Storage Architecture |
| MESB | Marine Energy Sdn Bhd |
| MESL | Micro Energy System Laboratory |
| MESON | Medium Energy Science Open Network |
| MESP | Maryland Energy Sector Partnership |
| MESP | My Energy Start Page |
| MEST | Master in Energy Science and Technology |
| MEST | Matter Energy Space And Time |
| MET | Material Energy And Toxicity |
| METSS | Monthly Energy Transportation and Storage Survey |
| MEUC | Major energy users council |
| MFE | Minimum Free Energy |
| MFEP | Michigan Farm Energy Program |
| MFEP | Minimum Free Energy Path |