What Happens to Your Power Supply During a Smart Meter Installation

If you've noticed a new device on your wall or received a notice from Tenaga Nasional Berhad (TNB), you're likely part of the nationwide push to modernise Malaysia's electricity grid. As of August 2026, over 5 million homes have already been fitted with smart meters, with the utility provider aiming to reach 10.4 million installations by 2028 .

What exactly is a smart meter?

Unlike traditional meters that require manual readings, a smart meter is a digital device that records your electricity usage and communicates it directly to TNB via a secure network . This system, known as Advanced Metering Infrastructure (AMI), allows for two-way information exchange, which helps eliminate estimated billing and provides you with more accurate, timely data on your energy consumption [source](https://www.researchgate.net/publication/392991167_Malaysia's_Advanced_Metering_Infrastructure_AMI_A_Regulatory_Review).

Is the installation free?

Yes, the smart meter and its installation are completely free of charge for all customers . You will typically receive an installation notice by mail about a month before the scheduled work in your neighbourhood. During the process, which usually takes between 30 and 60 minutes, a certified technician in an orange uniform will need to temporarily turn off your power supply .

How can you track your usage?

Once your meter is active, you can link your account to the myTNB app. This allows you to monitor your daily and monthly electricity usage, set an energy budget, and receive alerts if you are nearing your spending threshold . By keeping a closer eye on these patterns, you can make informed decisions about your energy habits, which is the most effective way to manage your monthly costs [source](https://www.researchgate.net/publication/392991167_Malaysia's_Advanced_Metering_Infrastructure_AMI_A_Regulatory_Review).