| Answer | Crossword Clue |
|---|---|
| ELECTRONVOLT | Unit of energy (not potential) |
| KILOWATTHOUR | Unit of energy (not power or time) |
| ERGAL | Potential energy. |
| ERGAL | Potential energy, in physics. |
| COALBIN | Place for a potential energy source |
| COALBIN | Where potential energy may be stored |
