| Abbreviation | Definition |
|---|---|
| DEAP | Dwelling Energy Assessment Procedure |
| DEAP | Dwellings Energy Assessment Procedure |
| DEAR | Department Of Energy Acquisition Regulation |
| DEB | Dynamic Energy Budget |
| DEBS | Discipline Energy Beauty Strength |
| DEC | Delaware Electric Cooperative |
| DEC | Direct Energy Conversion |
| DEC | Display Energy Certificate |
| DECC | Department of Energy and Climate Change |
| DECC | Department of Energy and Congenital Cretins |
| DECC | Department of Energy Climate Change |
| DED | Dark Energy Detector |
| DEDI | Department for Energy Development and Independence |
| DEE | Daily Energy Expenditure |
| DEE | Diel Energy Expenditures |
| DEEC | Desert Energy Enterprise Center |
| DEEC | Distributed Energy Efficient Clustering |
| DEED | Demonstration of Energy Efficiency Developments |
| DEED | Demonstration Of Energy Efficient Develop |
| DEED | Demonstration of Energy Efficient Development |