Direct Opposite:
* Non-electrician: This is the most literal opposite, but not very useful in most situations.
Based on Function:
* Plumber: If you're talking about trades, plumber is an opposite as they work with water instead of electricity.
* Carpenter: This is another trade opposite, focusing on wood instead of electrical systems.
* Mechanic: This refers to someone who repairs machinery, rather than electrical systems.
Based on Skill:
* Unskilled worker: This emphasizes the lack of specialized knowledge.
* Amateur: This emphasizes the lack of professional training.
Based on Responsibility:
* Customer: If you are thinking of someone who uses electrical services rather than provides them.
The best antonym will depend on the specific situation and what you are trying to communicate.