Electric kettles are one of the most commonly used appliances in South African homes. During loadshedding, many households rely on backup power systems such as inverters to keep essential appliances running.
However, kettles use a significant amount of electricity, which raises an important question: can a kettle run on an inverter during loadshedding?
In this guide we explain the power requirements of kettles and whether they can run on typical inverter systems.
How Much Power Does a Kettle Use?
Most electric kettles use between 1800W and 2200W of power.
Typical example:
| Appliance | Power Usage |
|---|---|
| Electric kettle | 1800W – 2200W |
Because kettles heat water quickly, they draw a large amount of electricity over a short period.
You can learn more in our guide on how much electricity a kettle uses in South Africa.
Can a Kettle Run on a Small Inverter?
Small inverter systems are usually designed to power low-energy devices such as:
- WiFi routers
- laptops
- lights
- televisions
These systems typically provide between 300W and 1000W of power.
Since kettles require up to 2200W, most small inverters cannot run a kettle.
What Size Inverter Is Needed for a Kettle?
To run a kettle, an inverter generally needs to provide at least:
2000W – 3000W
However, running high-power appliances on battery systems can drain batteries quickly.
For this reason, many households avoid using kettles on inverter systems unless they have a large battery setup.
Why Kettles Drain Batteries Quickly
Even though kettles operate for only a few minutes, their high wattage can consume a large amount of battery power.
Example:
2000W kettle × 3 minutes ≈ 0.1 kWh
This can significantly reduce the available battery capacity for other devices.
Better Alternatives During Loadshedding
Instead of running a kettle on battery power, many households use alternative options during loadshedding such as
- gas kettles
- portable gas stoves
- insulated flasks with pre-boiled water
These options reduce electricity usage and help preserve battery power.
Final Verdict
Electric kettles use a large amount of electricity and usually require 2000W or more to operate. Because of this high power demand, most small inverter systems cannot run a kettle during loadshedding.
Households with large inverter systems may be able to power a kettle, but it can drain battery capacity quickly.
For most people, it is better to use alternative methods for boiling water while saving inverter power for essential devices such as routers, lights, and laptops.
Explore More Electricity & Loadshedding Guides
If you want to understand how other appliances perform during loadshedding, you may also find these guides helpful:
These guides explain electricity usage and help you choose the best appliances for managing power during outages.
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