When it comes to household electricity use, some devices consume far more power than others.
While many electronics seem harmless on their own, the way we use them—and how often—can significantly impact our energy bills.
Below is a list of the top 10 electronics and appliances that typically use the most electricity in a home.
Being aware of these can help you make smarter, more energy-efficient choices.
1. Air conditioners
Cooling systems, especially older or non-inverter models, consume a significant amount of electricity—especially in warm climates or during summer months.
2. Water heaters
Electric geysers and water heaters are often one of the biggest power consumers, particularly when left on for long periods.
3. Refrigerators and freezers
These run 24/7, so even energy-efficient models can use a lot of electricity over time. Older models use even more.
4. Clothes dryers
Dryers use a heating element that draws a large amount of power. Using them often instead of air drying clothes can spike your electricity bill.
5. Washing machines (Hot water cycles)
Washing machines themselves don’t use much power, but if they heat water internally for hot washes, energy use increases significantly.
6. Ovens and stoves (Electric)
Electric stoves and ovens draw a lot of energy when in use, especially during baking or long cooking times.
7. Dishwashers
They use a mix of electricity and hot water. The heating element inside the dishwasher (for hot water and drying) is the main energy draw.
8. Televisions (Especially large or older models)
Big-screen TVs, especially older plasma models or those used for many hours daily, can consume a lot of power.
9. Computers and gaming consoles
High-performance desktops, gaming PCs, and consoles like PlayStation or Xbox use a considerable amount of energy during long gaming sessions.
10. Lighting (Incandescent or halogen bulbs)
While not an “electronic” per se, inefficient lighting—especially in homes still using incandescent or halogen bulbs—can add up, especially if lights are left on frequently.
Bonus tip:
Many devices continue to draw power even when turned off—this is called “phantom load” or standby power (e.g., TVs, chargers, microwaves, routers). Using a power strip or unplugging them can save energy.
Let me know if you want a version tailored for South African homes with local context or energy-saving tips.
