| Energieeffizienz | energy efficiency |
| Ineffizienz | inefficiency |
| Herzinsuffizienz | cardiac insufficiency |
| Energieerhaltung | conservation of energy |
| Energieniveau | energy level |
| energiegeladen | energetic |
| Effizienz | efficiency |
| ineffizient | inefficient |
| Insuffizienz | insufficiency |
| Energieschild | force field |
| kosteneffizient | cost-effective |
| Energiebündel | live wire |
| Energiequelle | energy source |
| Energieträger | energy carrier |
| Energieversorgung | energy supply |
| Energiewende | energy transition |
| Energiezufuhr | energy supply power supply |
| energiereich | high in energy high-energy energy-rich rich in energy resources |
| energierelevant | energy-relevant |
| enervieren | enervate |