Your simple guide to SMETS2 smart meters in the UK

Your simple guide to SMETS2 smart meters in the UK
Published on 7 Apr 2026

Understanding your smart meter can help you make better decisions about your energy usage and bills. This guide explains how SMETS2 smart meters work, why they're different from older models, and how they support modern energy tariffs.

Take the stress out of meter readings and billing for good. With Fuse Energy, you can choose between typing in your meter reading or taking a photo of it in our app if you don't have a connected smart meter and we'll handle the rest. Get clear bills, real-time half-hourly usage data, 24/7 human customer support, and a modern energy experience designed around you. Switch to Fuse Energy today in as little as 3 minutes, save annually on your bills, and see how simple energy can be.

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A quick checklist for checking your SMETS2 meter

What is a SMETS2 smart meter?

A SMETS2 smart meter is the latest generation of smart meter in the UK. It automatically sends your electricity and gas readings to your supplier, ensuring accurate billing without the need for manual readings.

SMETS1 vs SMETS2

SMETS1 meters were often linked to a specific supplier, which meant they could lose functionality when you switched. SMETS2 meters connect via a national network (DCC), so they continue working regardless of which supplier you choose.

Why SMETS2 meters stay connected

SMETS2 meters are designed to work across all suppliers through the DCC network. This means they continue sending readings automatically even after you switch, removing the risk of your meter losing connectivity.

What to expect with Fuse Energy

Fuse Energy fully supports SMETS2 smart meters and uses their functionality to provide a seamless modern energy experience.

Tariff eligibility

SMETS2 smart meters enable access to advanced tariffs. EV tariffs and time-of-use tariffs require a connected smart meter because they rely on precise, time-based usage data. If you already have a connected SMETS2 meter, you can access these tariffs without needing an upgrade.

Why Fuse Energy may be the better option

Managing your energy shouldn't feel like a chore. With Fuse Energy, you get real-time, half-hourly usage data in the app and website if you have a connected smart meter, so you can see exactly how much you're using and stay in control of your usage. Our 24/7 human support team is always on hand with fast response times of under 5 minutes whenever you need help. Switch to Fuse Energy in as little as 3 minutes and find out about our mission.

Frequently asked questions about SMETS2 smart meters

Will I be charged for a SMETS2 smart meter installation?

No. If a SMETS2 smart meter installation is required, this is carried out by Fuse Energy completely free of charge.

How can I switch to Fuse Energy?

Switching to Fuse Energy is simple and can be done in as little as 3 minutes by completing the online onboarding process here.

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.

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