Over 600,000 homes in the UK are facing an urgent issue. A smart meter upgrade alert has been issued, warning that old electricity meters using the Radio Teleswitch Service (RTS) will become unusable by June 30, 2025. If you don’t act, you could lose control of your heating and hot water.
Let’s break down what this means, who’s affected, and how to prepare.
What Is the RTS? – Smart Meter Upgrade Alert
The RTS (Radio Teleswitch Service) is a decades-old system that uses radio signals to switch meters between different electricity rates. It was mainly used with Economy 7 or Economy 10 tariffs to offer cheaper electricity during off-peak hours.
But this technology is being discontinued. The RTS will shut down completely on June 30, 2025. After that, any meter relying on RTS will no longer work properly.
This is why energy providers across the UK are sending out a smart meter alert.
Who’s Affected by the Smart Meter Alert?
If you have an RTS meter, you’re in the group affected. These meters are often found in:
-
Homes using electric storage heating
-
Flats in high-rise buildings
-
Properties without access to mains gas
-
Rural homes with off-peak electricity plans
You might be using one without even knowing it. If your meter controls your heating or hot water based on time of day, chances are it uses RTS.
What Happens If You Don’t Upgrade? – Smart Meter Alert
Ignoring this smart meter upgrade alert could result in real problems:
-
Loss of heating or hot water: Your meter may stop communicating with your heating system.
-
Higher energy bills: You’ll lose access to cheaper off-peak tariffs.
-
Incorrect billing: Your meter won’t be able to record your usage properly.
As the deadline approaches, the risk of service disruption grows.
Benefits of Taking the Smart Meter Upgrade Alert Seriously
Upgrading to a smart meter has major advantages. It’s not just about keeping the heat on—it’s about smarter, more efficient living.
-
Automatic meter readings: No more manual submissions.
-
Live usage data: Track energy in real time through apps or displays.
-
Fair billing: Pay only for what you use, when you use it.
-
Flexible tariffs: Access to more deals, including cheaper nighttime rates.
By responding to the smart meter upgrade alert, you can gain better control over your energy use.
How to Tell If You Need the Smart Meter Upgrade Alert
You should contact your energy provider if any of these apply:
-
Your electricity bill shows Economy 7 or Economy 10.
-
Your heating or water system uses timers controlled by the meter.
-
There’s a box near your meter labeled “Radio Teleswitch”.
Still unsure? Call your supplier—they can confirm whether you need to upgrade.
What Should You Do Now? – Smart Meter Upgrade Alert
Your energy company will arrange a smart meter installation for free. But don’t wait. The closer we get to June 2025, the fewer appointment slots will be available.
Here’s how to take action:
-
Contact your energy supplier now.
-
Book an installation appointment as soon as possible.
-
Verify installer identity before letting anyone into your home.
And watch out for scams. Real energy companies will never ask for money to replace your meter or request your bank details upfront.
Why the Smart Meter Upgrade Alert Matters
The RTS shutdown may seem like a small technical change, but it affects essential services like heating, hot water, and accurate billing.
By taking this smart meter alert seriously, you’re not just protecting your home—you’re also helping the UK energy system move toward more modern, efficient infrastructure.
Delaying action could lead to stressful, avoidable problems. Acting early gives you peace of mind and ensures a smooth transition.
To recap: if you still use an RTS meter, you must act by June 30, 2025. The smart meter upgrade alert is your notice to upgrade and stay connected.
You’ll enjoy better billing, smarter energy use, and uninterrupted heating. Don’t wait—contact your supplier today.
For more help and updates, visit: www.energy-uk.org.uk
