Around 600,000 UK energy customers who still rely on Radio Teleswitch Service (RTS) meters have been warned of potential electricity supply disruptions as Ofgem confirms that these meters will be phased out by 30 June 2025.
The RTS system, introduced in the 1980s, was designed to manage electricity supply by using radio signals to switch between peak and off-peak tariffs.
Following the shutdown, energy suppliers will no longer be able to support these meters, meaning that customers who have not switched to an alternative metering system may lose access to electricity.
The industry regulator has stated that new licence conditions will be put in place to ensure that affected customers receive fair treatment and are provided with an alternative metering system before the shutdown date. Energy suppliers are required to ensure a smooth transition for customers still using RTS meters.
What will happen after RTS shutdown?
From 30 June 2025, RTS meters will no longer function, meaning customers who have not upgraded to a modern metering system will be at risk of supply interruptions. According to Ofgem, electricity suppliers must take proactive steps to ensure that all affected customers are transitioned to alternative meters before this deadline.
New electricity supply licence conditions introduced by Ofgem outline key obligations for suppliers :
- Suppliers must replace RTS meters within 30 working days when a customer switches supplier.
- All reasonable measures must be taken to ensure that customers are not financially disadvantaged when transitioning to a new metering system.
- Energy suppliers must ensure that all affected customers are informed about the need for a meter replacement and the steps required for a seamless transition.
RTS meter replacement rates have been lower than anticipated, and Ofgem has emphasised that failure to upgrade before the shutdown date could result in customers experiencing electricity supply issues.
How to Check if You Have an RTS Meter
RTS meters can often be identified by a “Radio Teleswitch” label, which may be located on the switch box near the meter or directly on the meter itself. In some cases, these meters are referred to as Dynamically Teleswitched (DTS) meters, a term that may be useful when speaking with an energy supplier.
Customers who are unsure whether they have an RTS meter are advised to contact their energy provider as soon as possible to verify their meter type. Suppliers are expected to notify affected customers in advance, but those who have not yet received any information are encouraged to reach out proactively.
Electricity suppliers must ensure that all affected customers are transitioned to alternative meters before the RTS service ends. Failure to upgrade in time could result in disruptions to electricity supply once the system is decommissioned.
Next Steps for Affected Customers
With the RTS shutdown deadline approaching, Ofgem has stressed the importance of replacing outdated meters in a timely manner. Suppliers are required to assist customers in the transition process to prevent last-minute service disruptions.
Customers using RTS meters are advised to contact their energy supplier as soon as possible to arrange for a meter replacement. Electricity providers must ensure that replacements are carried out within the required timeframe and that customers are offered fair and appropriate tariffs after transitioning from RTS meters.
For those concerned about potential higher energy costs, Ofgem has confirmed that suppliers must take all reasonable steps to ensure customers do not face higher bills as a result of switching meters.
Ofgem is also engaging with consumer groups, charities, and industry stakeholders to finalise the new electricity supply licence conditions. The public consultation will remain open until 11 March 2025, allowing interested parties to provide feedback before the changes are formally implemented.
