| reach the earth | 0.69 |
| hit the earth | 0.64 |
| use solar panels | 0.58 |
| generate electricity | 0.54 |
| fall on the earth | 0.53 |
| reduce energy costs | 0.51 |
| heat the air | 0.50 |
| provide electricity | 0.49 |
| save money | 0.47 |
| reach the earth’s surfa… | 0.46 |
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| the power | 0.43 |
| many benefits | 0.34 |
| tax incentives | 0.32 |
| small environmental imp… | 0.29 |
| con | 0.25 |
| many advantages | 0.24 |
| technical, geographical… | 0.16 |
| free | 0.69 |
| renewable | 0.58 |
| clean | 0.56 |
| intermittent | 0.55 |
| beneficial | 0.55 |
| practical | 0.51 |
| abundant | 0.47 |
| unpredictable | 0.47 |
| friendly | 0.47 |
| simple | 0.46 |
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| energy | 0.69 |
| primary form of energy | 0.31 |
| free source of energy | 0.30 |
| the cleanest form of en… | 0.24 |
| produced by the sun | 0.65 |
| used to produce electri… | 0.64 |
| absorbed | 0.61 |
| wasted in the process | 0.59 |
| produced | 0.59 |
| used to heat water | 0.58 |
| converted into electric… | 0.57 |
| utilized | 0.57 |
| absorbed by ocean | 0.55 |
| used in home | 0.54 |
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