| Clue | Source | Date |
|---|---|---|
| Lorde song with the lyric "But when the heat comes, something takes a hold" | ||
| Energy obtained from a source more than ninety million miles away | ||
| Green juice? | New York Times | 05 Jul 2024 |
| Modern source of energy (2 wds.) | ||
| Energy provided from the sun's rays (5,5) | ||
| Cheap energy source | Universal | 12 Jun 2021 |
| Ecological concept worse with polar melting? | The Telegraph Toughie | 02 Mar 2017 |
| ''Green'' electricity source | Newsday | 26 Sep 2016 |
| Clean source of energy | ||
| Type of energy | ||
| Clean source of energy |