SMETS2 Smart Meters: A Simple Guide

Smart meters are the next step in managing your energy use. They track how much gas and electricity you use in real time, helping you save money and reduce waste. But not all smart meters are the same. In the UK, there are two main types: SMETS1 (first-generation) and SMETS2 (second-generation). In this blog, we’ll explain everything you need to know about SMETS2 meters, how they’re different from SMETS1, and why they’re better for most households.

What Are Smart Meters?

Smart meters are devices that replace your old gas and electricity meters. They automatically send your energy usage data to your supplier, so you don’t have to take manual readings. They also come with a handy in-home display that shows you how much energy you’re using in pounds and pence, helping you spot ways to save.

Two smart electric power meter counter measuring power usage.Close-up of modern smart grid residential digital power supply meter.Indoors shot.Selective focus.

The Evolution of Smart Meters: SMETS1 to SMETS2

  • SMETS1 (First-Generation Smart Meters):
    These were the first smart meters rolled out in the UK. While they were a big step forward, they had a major downside: if you switched energy suppliers, your SMETS1 meter might lose its “smart” features and stop sending automatic readings.

  • SMETS2 (Second-Generation Smart Meters):
    SMETS2 meters were introduced to fix the problems with SMETS1. They work with all energy suppliers, so you can switch providers without losing functionality. They’re also more reliable and use a secure network to send your data.

What Does a Newer Meter Look Like?

SMETS2 meters look similar to SMETS1 meters. They’re small, boxy devices usually installed where your old meter was (e.g., under the stairs or in a cupboard). The main difference is inside—SMETS2 meters use better technology to communicate with your energy supplier.

Types of Smart Meters

There are two main types of smart meters in the UK:

  1. SMETS1: The older version, which may not work if you switch suppliers.

  2. SMETS2: The newer version, which works with all suppliers and keeps its smart features no matter who provides your energy.

 SMETS1 vs. SMETS2: What’s the Difference?

Here’s a simple breakdown of the key differences:

FeatureSMETS1SMETS2
Works with all suppliers?No, may lose functionality when switching.Yes, works with all suppliers.
Data communicationUses older technology.Uses a secure, modern network (DCC).
ReliabilityLess reliable after switching.More reliable and consistent.

Benefits of SMETS2 Smart Meters

Upgrading to a SMETS2 meter comes with several advantages:

  • No more manual readings: Your meter sends data automatically.

  • Switch suppliers easily: SMETS2 meters keep working no matter who your energy provider is.

  • Accurate bills: No more estimates—you only pay for what you use.

  • Help the environment: By tracking your energy use, you can reduce waste and lower your carbon footprint.

Common Questions About SMETS2 Meters

Here are answers to some frequently asked questions:

  • Can I upgrade from SMETS1 to SMETS2?
    Yes, many suppliers are upgrading SMETS1 meters to SMETS2 for free. Contact your supplier to check.

  • How do I know if I have a SMETS2 meter?
    Ask your energy supplier or check your meter’s model number. SMETS2 meters are usually installed after 2018.

  • Is installation free?
    Yes, most suppliers install SMETS2 meters at no cost to you.

  • What happens to my SMETS1 meter if I switch to SMETS2?
    Your old SMETS1 meter will be replaced with a SMETS2 meter, which will work with any supplier.

 How to Get a SMETS2 Smart Meter

Getting a SMETS2 meter is easy:

  1. Contact your energy supplier (e.g., Octopus Energy, OVO Energy, British Gas).

  2. Ask if they’re installing SMETS2 meters in your area.

  3. Book an appointment for installation—it usually takes about an hour.

Most suppliers are now installing SMETS2 meters by default, so you might not even need to ask!

The Future of Smart Meters

The UK is working towards a fully smart energy system. SMETS2 meters are a big part of this plan, helping households and businesses use energy more efficiently. In the future, smart meters could even help balance the grid and support renewable energy sources like solar and wind power.

SMETS2 smart meters are a big improvement over the older SMETS1 models. They’re more reliable, work with all energy suppliers, and help you take control of your energy use. If you haven’t already, it’s worth contacting your supplier to upgrade to a SMETS2 meter. It’s free, easy, and could save you money in the long run.