Secure Liberty 100 smart meter explained

Secure Liberty 100 smart meter explained

The Secure Liberty 100 is a common electricity meter found in many UK homes. Understanding how it works, how to read it, and its implications for your energy supply is crucial, especially if you are considering switching providers. This guide demystifies the Secure Liberty 100, explains its place in the smart meter landscape, and outlines your options for maintaining smart functionality.

If you have a Secure Liberty 100 and are looking to upgrade to a modern SMETS2 smart meter, switching to Fuse Energy can make it simple. Click here to see how easy it is to get started.

Enter your address to get a quote and see how much you could save

Understanding your Secure Liberty 100 smart meter

What is the Secure Liberty 100?

The Secure Liberty 100 is a type of electricity meter installed in many UK households. It is designed to measure your electricity consumption and often functions as a smart meter, capable of sending readings automatically to your energy supplier. However, it is typically a first-generation smart meter.

Key features of the Secure Liberty 100

This meter usually features a digital display and buttons for navigating through different screens to view your usage data. While designed for automatic readings, it also allows for manual checks. Its primary function is to record your electricity consumption in kilowatt-hours (kWh), which forms the basis of your energy bills.

SMETS1 vs SMETS2: the Secure Liberty 100 context

Is your Secure Liberty 100 a SMETS1 or SMETS2 meter?

The Secure Liberty 100 is typically a first-generation (SMETS1) smart meter. SMETS stands for Smart Metering Equipment Technical Specifications, which define the technical requirements for smart meters in the UK.

What is the difference between SMETS1 and SMETS2 meters?

SMETS1 meters are first-generation smart meters that may lose smart functionality when you switch suppliers. SMETS2 meters are second-generation, designed to maintain smart features regardless of your energy provider, offering better interoperability and more consistent functionality.

Why SMETS generation matters for switching

The generation of your smart meter significantly impacts your experience when changing energy suppliers. SMETS1 meters, like the Secure Liberty 100, may lose their smart functionality - often referred to as 'going dumb' - if you switch to a new energy supplier. This means you might have to revert to taking manual meter readings, and you could lose access to smart tariffs or detailed energy insights.

How to read your Secure Liberty 100 meter

Even if your Secure Liberty 100 is sending automatic readings, knowing how to read it manually is useful, especially if it loses smart functionality.

Taking an electricity meter reading

To take a reading from your Secure Liberty 100, you will typically need to press one of the buttons on the meter's front panel. Look for a button labelled "A" or "Display". Pressing this button repeatedly will cycle through various screens. You are looking for the screen that displays your total electricity consumption in kilowatt-hours (kWh).

Understanding your meter display

The display on your Secure Liberty 100 can show several pieces of information:

  • IMP kWh: This is your total electricity consumption reading.
  • Date and time: The current date and time.
  • Rate information: If you are on a multi-rate tariff (like Economy 7), you might see separate readings for "Rate 1" and "Rate 2" or "Peak" and "Off-Peak".
  • Credit balance: For prepayment meters, this shows your remaining credit.

Switching energy suppliers with a Secure Liberty 100

Potential loss of smart functionality

As a SMETS1 meter, your Secure Liberty 100 might lose its smart features if you switch energy suppliers. This can be frustrating, as it means you may no longer benefit from automatic meter readings, accurate billing based on actual usage, or access to smart tariffs that require a fully functional smart meter. You would then need to submit readings manually.

Maintaining smart features after a switch

If you have a Secure Liberty 100 and want to ensure continuous smart functionality when switching suppliers, you have a couple of options. Some suppliers can re-establish smart communication with SMETS1 meters, but this is not always guaranteed. The most reliable way to maintain smart features is to upgrade to a SMETS2 meter.

Upgrading to a SMETS2 smart meter

Benefits of a SMETS2 meter

Upgrading to a SMETS2 meter offers several advantages. These second-generation smart meters are designed to remain smart even if you switch energy suppliers, ensuring seamless communication and accurate billing. They provide more granular data on your energy usage, which can be accessed through an in-home display or a supplier's app. This transparency and control can help you manage your energy consumption more effectively and potentially save money. SMETS2 meters also enable access to advanced tariffs, such as those with variable rates based on the time of day, allowing you to optimise your energy usage for cheaper periods.

Getting a free SMETS2 upgrade

Many energy suppliers in Great Britain, regulated by Ofgem, are committed to rolling out SMETS2 meters. If you have an older SMETS1 meter, such as the Secure Liberty 100, and wish to upgrade, you can often get a free SMETS2 smart meter upgrade when you switch to a new supplier. For example, Fuse Energy offers a free SMETS2 smart meter upgrade for eligible homes upon switching, empowering customers to gain full control over their energy usage and access modern tariffs. This ensures seamless smart meter functionality, unlike older SMETS1 meters that can 'go dumb' after switching. Fuse's commitment to modern SMETS2 technology, combined with dedicated customer support, provides clear visibility and control over your energy through the Fuse app.

Managing your energy bills should be clear and easy to understand. Fuse Energy focuses on straightforward pricing, so you can see exactly what you are paying without unnecessary complexity. If you have a smart meter, you can view detailed usage data through the app or website, helping you understand how you can lower your bills. If you do not have a smart meter, Fuse Energy can upgrade your non-smart meter, completely for free. This can make it easier to track spending and make informed decisions about your energy use. Click here to switch to Fuse Energy today. Find out about our mission by clicking here.

Published on 6 Jun 2026

Share

Disclaimer

For the avoidance of doubt, this article is provided for informational purposes only and is not intended to constitute legal or financial advice. The author and/or Fuse Energy shall not be responsible for any losses arising out of any reliance on the information contained herein.

Secure Liberty 100 smart meter explained