| Similarity | Rank | |
|---|---|---|
| Renewables | 0.910 | 55257 |
| Energy | 0.887 | 2769 |
| Biomass | 0.843 | 50798 |
| renewable | 0.834 | 6153 |
| Biofuels | 0.825 | 67613 |
| Fuels | 0.823 | 48822 |
| Energy's | 0.816 | 41046 |
| Geothermal | 0.806 | 51004 |
| Photovoltaic | 0.803 | 65567 |
| RECs | 0.789 | 84981 |
| Emissions | 0.778 | 37744 |
| Efficiency | 0.773 | 18898 |
| Electricity | 0.772 | 20930 |
| renewables | 0.769 | 27442 |
| Solar | 0.763 | 7195 |
| Sustainable | 0.761 | 11223 |
| NREL | 0.757 | 96585 |
| DECC | 0.741 | 73039 |
| feed-in | 0.732 | 67440 |
| CSP | 0.729 | 35309 |
| cogeneration | 0.728 | 76666 |
| Gas | 0.727 | 8205 |
| Turbines | 0.726 | 90319 |
| Cleantech | 0.726 | 79165 |
| Biodiesel | 0.722 | 63631 |