| Abbreviation | Definition |
|---|---|
| NEB | Non Energy Benefits |
| NECB | National Energy Code of Canada for Buildings |
| NECE | National Energy Center of Excellence |
| NECS | National Energy Control Services |
| NECSA | Nuclear Energy Corporation of South Africa |
| NECSC | National Energy Center for Sustainable Communities |
| NEDA | Natural Energy Decomposition Analysis |
| NEDD | Nexus of Energy Data Design |
| NEDO | New Energy and Industrial Technology Development Organization (Japan) |
| NEDO | New Energy Development Organization |
| NEE | National Energy Equipment |
| NEE | New Energy Economy |
| NEEC | New England Energy Controls |
| NEED | National Energy Education Development |
| NEED | Network of Energy Excellence for Development |
| NEEDS | Nauru Energy Efficiency Demand Side |
| NEEDS | New Energy Externalities Development for Sustainability |
| NEEDS | New Energy Externalities Developments for Sustainability |
| NEEI | National Extension Energy Initiative |
| NEEI | Northwest Energy Education Institute |