Don’t Get Left Behind
In June 2025, the UK will mark a major shift in energy infrastructure as the Radio Teleswitching (RTS) system is officially retired. This is more than just a technical update—if your business still relies on an RTS meter, it’s time to take action.
Once the signal is switched off, these meters will no longer be able to switch between peak and off-peak rates automatically. That could disrupt your tariff schedules, affect billing accuracy, and ultimately increase your energy costs if not addressed in time.
At Black Sheep Utilities, we’re here to make the transition seamless. Instead of navigating this change alone or chasing suppliers, let us guide you through what it means—and how to upgrade with minimal disruption.

What Are RTS Meters?
RTS meters have been used for decades to support multi-rate tariffs such as Economy 7 or Economy 10. These meters receive radio signals to control when certain appliances (like storage heaters) switch on or off, allowing users to benefit from cheaper off-peak electricity rates.
While once cutting-edge, the technology behind RTS meters is now outdated and difficult to maintain. The network powering these signals is being turned off, and with it, RTS meters will stop functioning as intended.
Why Is RTS Being Switched Off?
The RTS system simply doesn’t meet the needs of today’s smarter, more sustainable energy market. It’s being retired in favour of modern, connected solutions—namely, smart meters.
Rather than spend hours researching metering options or chasing suppliers, let Black Sheep Utilities take the pressure off. We’re already supporting clients through this change, ensuring they avoid disruptions and take full advantage of what comes next.

What Does This Mean for Your Business?
If you’re still using an RTS meter, the clock is ticking. But this isn’t just about compliance—it’s an opportunity to modernise your energy setup and cut long-term costs.
When you partner with Black Sheep Utilities, you can expect:
Real-time usage insights that help you reduce waste
Accurate billing thanks to automated meter readings
Access to new, more flexible tariffs that suit your business better
We’ll handle the switch from start to finish—no need for you to manage it internally or negotiate with suppliers.
Not sure if you’ve got an RTS meter?
You’re not alone—and that’s where we come in. We’ll carry out a free audit to check and let you know if you’re affected. No hassle, no jargon.
Here’s how we help:
- Free Audit
We’ll confirm if you’ve got an RTS meter and advise on the best upgrade path. - Ongoing Support
Once you’re upgraded, we stick around—helping with tariff reviews, usage monitoring and more, so you get the most from your meter.

Why Upgrade with Black Sheep?
Switching away from RTS meters isn’t just ticking a box—it’s a chance to take control of your energy future. When you upgrade through Black Sheep Utilities, you gain:
Efficiency: Get a clear picture of your usage and cut unnecessary costs.
Savings: Access cost-effective tariffs and avoid being rolled onto default rates.
Sustainability: Join the move toward a smarter, greener energy grid.
Need Help Navigating the Switch?
At Black Sheep Utilities, we specialise in helping businesses stay ahead of energy changes. We’re here to ensure your energy setup works smarter—not harder.
GET IN CONTACT WITH US
What is an RTS meter and why does it matter for the RTS Meter Switch-Off in June 2025?
An RTS (Radio Teleswitching) meter uses radio signals to control off-peak electricity usage, typically for tariffs like Economy 7 or 10. When the RTS system is switched off in June 2025, these meters will no longer function correctly—potentially disrupting your tariff timings and increasing your energy bills.
What’s happening in June 2025 during the RTS Meter Switch-Off?
The UK’s RTS system will be permanently shut down in June 2025. After this, any meter that relies on this signal will lose its ability to switch between peak and off-peak rates automatically.
Why is the RTS Meter Switch-Off happening, and what’s replacing it?
The RTS system is outdated and no longer supports the needs of a modern energy grid. It’s being replaced by smart meters, which offer real-time usage tracking, flexible tariffs, and remote readings.
How do I know if I’m affected by the RTS Meter Switch-Off in June 2025?
If you’re unsure whether your meter relies on RTS, Black Sheep Utilities offers a free audit to confirm your meter type and guide you through your options before the switch-off.
Why should I handle the RTS Meter Switch-Off with Black Sheep Utilities?
We offer expert guidance, billing accuracy, tariff optimisation, and ongoing support—ensuring your business transitions smoothly and avoids costly surprises after the switch-off.