Understanding Your NMI Number: The Key to Managing Your Electricity in Australia

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When you move home in Australia, understanding your NMI is an important part of making sure your electricity gets connected on time and without delay. The NMI meter number (National Meter Identifier) is a unique 10 or 11-digit code assigned to every electricity meter in the country, making sure your home is accurately matched to your bill and enabling distributors to run their metering and billing processes. In this blog, we will learn about the importance of NMI numbers and discover their role in moving houses, switching electricity providers and accurate billing. 

On this page

  • What is an NMI number?
  • When are NMI Numbers Needed?
  • How to Find the NMI Number on Metres
  • Who to Contact For Your NMI-related Queries

What is NMI Number?

You might not have heard of electricity NMI numbers, but they are a crucial part of Australia’s electricity infrastructure. It is a unique identification number assigned to every electricity meter across the country. Think of it as a digital address for your meter, so that your energy retailer can accurately track and bill your electricity consumption.

Your NMI meter number is a 10 or 11-digit code that signals important information about your meter, including where it is located. These are the several different components of the NMI number on meters:

  • Distributor ID: The first two digits of the NMI meter number identify your electricity distributor. This is the company responsible for the distribution of electricity in your area.
  • Meter Configuration ID: The next three digits of the NMI number on meters show the specific metering setup and characteristics associated with your meter, such as if it is an analogue or smart meter.
  • Checksum Digit: The last digit of electricity NMI numbers is a checksum to ensure data integrity and the accuracy of the code.

By using the NMI number electricity retailers and distributors can track your usage, reconcile billing and contribute to the operations of the National Electricity Market (NEM). For customers, this means switching providers, moving home and paying bills is a breeze!

What is NMI Number

When are Electricity NMI Numbers Needed?

As a customer, there are several situations when you will need your number.

  • Moving Home

When you move to a new house, you will need to provide your NMI meter number to disconnect your electricity from your current home and reconnect it at your new place. Your electricity retailer will use the unique identifier to issue your final bill based on the meter reading conducted by the electricity distributor. Providing your number accurately helps to avoid potential billing errors or complications during this process.

  • Switching Electricity Providers

When the time comes to switch to a new electricity provider, the electricity NMI number plays a crucial role in making sure the switch goes off without a hitch. Before changing providers, it’s important to provide your new electricity retailer with your number to make sure they have an accurate meter reading to issue your first bill. By providing this unique identifier, your new electricity provider can take over your electricity supply with no disruption to your power.

  • Challenging Electricity Bills

Although uncommon, your unexpectedly high electricity bill may be the result of a billing error or inaccurate meter reading. Electricity NMI numbers can be your key to resolving the issue. By contacting your provider with your number, you can double-check the accuracy of the meter reading and make sure that you have been billed correctly. If there has been a mistake, your retailer will credit the difference to your next bill.

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How to Find the NMI Number on Meters

Locating the NMI number on meters is easy if you know how. 

  • Analogue Meter: On most traditional meters, the number can be found on a metal plate or sticker attached to the front or side of your meter. It is typically labelled with “NMI” followed by the 10-digit code. 
  • Smart Meter: For smart meters, your number may be accessible through the digital display on the meter or through the app provided by your retailer. Take a look at your electricity provider’s instructions or give them a call to find out how to find your smart meter NMI.

Remember, your number is a unique identifier, so it is important to accurately record and provide the entire 10-digit code when required to avoid bill discrepancies, delays and confusion.

Who to Contact For Your NMI-related Queries

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If you have any questions or concerns about your NMI or electricity bills, you should reach out to your electricity provider. They can provide accurate and up-to-date information about your meter or arrange for maintenance or readings to be taken by the electricity distributor in your area. You should not contact your distributor directly.

To contact your electricity provider, you can find their contact details on their website or your most recent bill. Simply explain that you have an NMI number electricity inquiry and provide them with the necessary details so that they can assist you. Some common NMI number electricity questions included connecting or disconnecting your electricity supply, updating your account information, or resolving any discrepancies with billing or meter readings.


Understanding electricity NMI numbers is essential for effectively managing your electricity in Australia. This digital code is a unique identifier for your electricity meter, allowing for accurate usage tracking and precise billing. Whether you’re moving homes, switching electricity providers, or challenging your bills, the electricity NMI number plays an important part in avoiding errors and complications.

Now that you know what your number is and where to find it, remember to provide it when needed, such as during a move or when switching providers. This will make sure your electricity service can be provided with ease. 

If you’re looking for affordable electricity options and want to save on your bills, don’t forget to reach out to CheapBills. Our friendly team of energy experts can compare energy plans from our panel of providers and help you find the best deal for your home or business. Contact CheapBills today to take control of your electricity bills and start saving.

Important Note: All the rates, plans and offers stated in this article are subject to change at the provider’s discretion and might not be updated after the publish date unless stated otherwise. We try our best to update all the rates mentioned in our blogs as soon as possible. All articles updated will have the update dates mentioned. Thank you for your patience!