| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | solar cell | Europe | Solar cells are commonly used for renewable energy generation and are often installed on residential and commercial buildings. | 1 |
| 2 | solar cell | Europe | Commonly used to harness renewable energy and reduce carbon footprint | 1 |
| 3 | solar energy | Europe | Increasingly popular as a renewable energy source, with government incentives and widespread adoption of solar panels. | 1 |
| 4 | solar system | Europe | Taught in science education as comprising eight planets, with the ninth planet being a matter of historical debate. | 1 |