| Subcategory | |
| Bioenergy | |
| Electrical | |
| Electrician | |
| Energy Efficiency | |
| Geothermal Energy | |
| Natural Gas | |
| Nuclear Energy | |
| Nuclear Safety | |
| Oil | |
| Power Generation | |
| Renewable Energy | |
| Solar Energy | |
| Telecommunications | |
| Water Heaters | |
| Wind Energy |
Illuminating Communication Between Cultures
Firefly Linguistics 