| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | power sources | Japan | Significant use of nuclear power for energy production | 1 |
| 2 | renewable energy | Japan | Investment and innovation in different forms of renewable energy, including tidal and geothermal power | 1 |
| 3 | renewable energy sources | Japan | Solar and offshore wind power are key renewable energy sources, contributing to the push for energy self-sufficiency. | 1 |