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Update (June 2025)

We previously stated that RTS technology was due to be switched off on 30 June 2025. However, Ofgem and the Department for Energy Security and Net Zero (DESNZ) have recently taken the decision to phase out the RTS signal shutdown over a longer timeframe than previously stated, to minimise the risk of potential detrimental impacts on some customers. This means that your RTS meter may no longer lose its functionality as soon as previously advised.

Ofgem and DESNZ still require electricity suppliers and Meter Operators (MOPs) to replace these meters as soon as possible, and urge that whilst the signal phase out may be longer than expected, this should not reduce the effort or focus on the meter exchanges that are required.

Please be aware that failure to replace your RTS meter before the RTS signal switch off will mean heating and hot water within affected sites will not work or may be permanently switched on.

If you have an RTS meter, we therefore need you to work with us, or your contracted MOP, to agree an appointment date to exchange your meter as soon as possible, and in any event prior to the signal being phased out for your meter.

What is the RTS?

Introduced in the 1980s, the RTS uses a radio signal to tell some electricity meters when to switch between peak and off-peak rates.

RTS was also used for some traditional multi-rate meters to support customers who use electricity for their heating and hot water, including electric storage systems, panel heaters or immersion heaters in water tanks – some of which typically charge up overnight.

As RTS is now reaching the end of its natural operational life, the equipment that produces the radio signal can’t be adequately maintained anymore.

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When will the RTS be shut down?
The RTS system will be phased out from 30 June 2025 across the energy industry. After this date, meters that use the RTS may lose critical functionalities. For example, depending on your meter type, off-peak timing might cease to operate, potentially resulting in the loss of heating and hot water services.
 
The impact of these lost functions will be felt by all non-domestic customers with an RTS meter, irrespective of their energy provider. The switch off applies to all electricity suppliers, and we are proactively reaching out to affected customers to provide them with a meter upgrade before the RTS service concludes.
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How will I know if I have an RTS meter?

If you're uncertain about having an RTS meter, keep an eye out for these signs:

  • Look for a separate switch box near your meter labelled with 'Radio Teleswitch'
  • If your property is heated using electricity or storage heaters
  • In areas without a gas supply (including rural homes or high-rise flats)
  • If you benefit from discounted electricity rates at various times of the day, possibly on Economy 7, Economy 10, or Total Heat Total Control tariffs

If you're still unsure about having an RTS meter, please contact us.

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How will the RTS switch off affect me?

If you don't arrange to have your RTS meter exchanged before your service is disconnected, your meter may stop functioning properly and become inoperable. 

This means your meter won't be able to switch between peak and off-peak rates, resulting in your hot water not working as expected. It could also lead to your heating being on or off at all times. This could impact your energy invoices and the amount you pay for your energy.

To arrange a meter exchange, please contact us.

What alternatives are available to me?

Automated Meter Reading (AMR) and Smart meters offer a diverse array of advantages for your business. By sending your energy data directly to us, the hassle of manual meter readings is removed, allowing your valuable resources to be redirected to other areas of your business. With precise energy consumption readings, you can avoid the uncertainties of estimated invoicing, ensuring that you are only invoiced for the energy you actually use.

What happens next?

We are currently reaching out to all customers with an RTS meter to arrange an exchange.

If you believe you have an RTS meter and may be impacted by this ending, and haven't heard from us yet, please get in touch.

Contact Us

New quote or renewal please call

0330 912 7611 0330 912 7611 0330 053 3356 0330 912 1036

Existing customers please call:

0330 912 4754 0330 912 4754 0330 912 4754 0330 912 4754

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