| Abbreviation | Definition |
|---|---|
| ESNL | Energy Science and Nanotechnology lab |
| ESNL | Energy Science and Nanotechnology Laboratory |
| ESOS | Energy Saving Opportunities Scheme |
| ESOS | Energy Saving Opportunity Scheme |
| ESOS | Energy Savings Opportunites Scheme |
| ESOS | Energy Savings Opportunity Scheme |
| ESOT | Energy Solutions of Texas |
| ESOU | Energy Sector Own Uses |
| ESP | Energy Savings Plus |
| ESP | Energy Smart Performance |
| ESPC | Energy Saving Performance Contract |
| ESPC | Energy Savings Performance Contract |
| ESPC | Energy Savings Performance Contracting |
| ESPC | Energy Savings Performance Contracts |
| ESPF | Energy Saver Prefs File |
| ESPI | Energy Services Provider Interface |
| ESREM | Enhanced Sustainable Regional Energy Market |
| ESS | Energy Savings Scheme |
| ESS | Energy Select Sector |
| ESS | Energy Storage Solutions |