| Clue | Source | Date |
|---|---|---|
| Encircle foremost electrical circuit (4,4) | Puzzler Cryptic | 07 Aug 2026 |
| Circuit in margin? (4,4) | ||
| Call sea a source of power? | ||
| Syndicate staff installing current power source | The Times Cryptic | 10 Mar 2016 |
| Electrical supply | The Times Concise | 01 May 2015 |