| Similarity | Rank | |
|---|---|---|
| sustainable | 0.827 | 3070 |
| renewable | 0.816 | 6153 |
| renewables | 0.786 | 27442 |
| environment-friendly | 0.763 | 74445 |
| energy-intensive | 0.755 | 95480 |
| energy-saving | 0.755 | 35516 |
| environmentally-friendly | 0.747 | 47015 |
| biofuels | 0.744 | 26111 |
| fossil-fuel | 0.733 | 91442 |
| market-based | 0.733 | 53093 |
| energy-efficient | 0.728 | 24948 |
| energy-efficiency | 0.723 | 70696 |
| biofuel | 0.715 | 33305 |
| bioenergy | 0.707 | 65798 |
| sustainability | 0.706 | 5513 |
| cogeneration | 0.705 | 76666 |
| carbon | 0.700 | 3087 |
| environmentally | 0.699 | 8558 |
| market-oriented | 0.699 | 85499 |
| emissions | 0.695 | 4569 |
| photovoltaics | 0.689 | 66103 |
| carbon-based | 0.680 | 97409 |
| greener | 0.680 | 19233 |
| non-renewable | 0.678 | 56124 |
| feed-in | 0.678 | 67440 |