What is a kilowatt-hour (kWh)?

Quick answer

kWh stands for ‘KiloWatt Hour’, which is a unit of energy that measures how much electricity your home has used.

‘kilo’ means 1,000, ‘watt’ is a measure of power and ‘h’ simply stands for hour.

Your home’s electricity usage is recorded in kWh by your electricity meter and passed on to your retailer for billing (that’s us).

Your bill will detail how many kWhs have been used, however bear in mind that sometimes we may need to estimate your usage if your meter is inaccessible for a meter reading.

What’s the difference between a kW and kWh?

It’s fairly common for people to confuse kW and kWh. The core difference is that kW is a measurement of power, while a kWh is a measurement of energy. On the surface that might sound like the same thing, but it’s an important distinction.

An easy way to think about it, is to think of kW as speed and kWh as distance. The faster the speed (kW), the greater the distance you will cover (kWh).

How is appliance use measured?

Appliances are generally described in terms of their wattage, which is the power they require to run.

For instance, if you run a 1,000-watt (1kW) appliance for one hour, then it will use one kWh.

If you run a 3kW air conditioner for one hour, then it would use 3kWh of electricity. One 40-watt light bulb, on the other hand, would take 4 hours to use up one kWh.

What are some examples of kWh usage around the home?

Ever wondered how much energy the appliances around your home use?

From the kitchen to the laundry, our kWh appliance guide will detail your electricity and appliance use; all to help you become a long-term energy saver!

How do kWh work with amaysim’s subscription plans?

For eligible smart meter customers, our subscription energy plans, give you a set amount of kWh to use each month.

They work just like your mobile plan, so you can rollover any unused energy and top-up if you’re close to running out – here’s a complete rundown on how they work.

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