| Clue | Source | Date |
|---|---|---|
| Photovoltaic device | Universal | 24 Aug 2025 |
| Sun-powered device | ||
| Sun-powered energy device | Universal | 30 Dec 2023 |
| Photovoltaic device (... letter 5) | Universal | 20 Oct 2020 |
| Converter of sunlight to electric power | The Times Concise | 15 Apr 2015 |
| Photovoltaic device | ||
| Photovoltaic device | ||
| Sun-power source | ||
| Optoelectric device | ||
| Battery type |