| Similarity | Rank | |
|---|---|---|
| energy-efficiency | 0.911 | 70696 |
| high-efficiency | 0.881 | 53165 |
| energy-saving | 0.879 | 35516 |
| retrofits | 0.815 | 61075 |
| environmentally-friendly | 0.792 | 47015 |
| retrofitting | 0.791 | 52217 |
| retrofit | 0.790 | 30084 |
| photovoltaic | 0.758 | 22415 |
| environment-friendly | 0.756 | 74445 |
| daylighting | 0.752 | 93864 |
| photovoltaics | 0.749 | 66103 |
| fuel-efficient | 0.732 | 43842 |
| low-carbon | 0.728 | 41607 |
| low-energy | 0.727 | 72889 |
| cogeneration | 0.724 | 76666 |
| renewable | 0.724 | 6153 |
| energy-intensive | 0.723 | 95480 |
| efficient | 0.720 | 2049 |
| heaters | 0.720 | 15430 |
| low-flow | 0.717 | 80266 |
| solar | 0.716 | 2460 |
| heating | 0.715 | 4216 |
| thermostats | 0.714 | 48050 |
| cost-efficient | 0.712 | 44027 |
| tankless | 0.711 | 50304 |