| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | electric power distribution grid | Japan | Electric power distribution grids are commonly underground to minimize visual and environmental impact in densely populated areas. | 1 |
| 2 | electricity grid | Japan | Highly efficient and technologically advanced with smart grid systems | 1 |
| 3 | smart grid technology | Japan | Rapid adoption and integration of smart grid technology to enhance energy efficiency | 1 |
| 4 | smart grid technology | Japan | Commonly integrated into cities and urban areas to support advanced energy distribution and consumption monitoring | 1 |