| Similarity | Rank | |
|---|---|---|
| solar | 0.748 | 2460 |
| renewable | 0.743 | 6153 |
| cogeneration | 0.736 | 76666 |
| inverters | 0.735 | 49071 |
| electricity | 0.733 | 3160 |
| solar-powered | 0.732 | 50900 |
| photovoltaic | 0.730 | 22415 |
| photovoltaics | 0.729 | 66103 |
| PV | 0.719 | 14682 |
| gas-fired | 0.715 | 70372 |
| inverter | 0.708 | 27906 |
| renewables | 0.702 | 27442 |
| geothermal | 0.701 | 21905 |
| energy-efficient | 0.682 | 24948 |
| hydropower | 0.681 | 38989 |
| hydro-electric | 0.681 | 98559 |
| low-voltage | 0.667 | 82876 |
| hydroelectric | 0.663 | 35239 |
| biogas | 0.662 | 44510 |
| high-efficiency | 0.662 | 53165 |
| turbines | 0.659 | 14713 |
| heaters | 0.657 | 15430 |
| megawatts | 0.656 | 34528 |
| kilowatt | 0.656 | 45080 |
| Inverter | 0.647 | 90729 |