Alt HAN: improving smart meter connectivity

Smart meters are fundamental to modern energy management, enabling accurate billing and access to smart tariffs. However, their full potential can be hindered by connectivity issues in some homes. This is where Alt HAN (Alternative Home Area Network) steps in, an industry initiative designed to extend the reach and reliability of smart meter communication across the UK.

Understanding how Alt HAN improves smart meter connectivity can help you make the most of your energy. Fuse Energy offers clear pricing, real-time usage data, and 24/7 human customer support, all designed to give you a modern energy experience. Signing up is quick and easy, so you can take control of your bills from day one. Click here to switch to Fuse Energy today and start managing your energy effectively.

What is alt HAN?

Alt HAN is a technical solution developed for the UK energy sector to overcome connectivity challenges that prevent smart meters from reliably communicating with the wider energy network. This ensures more homes can benefit from smart metering, regardless of their location or property characteristics.

The home area network (HAN) explained

Your Home Area Network (HAN) is the local wireless network created by your smart meter's communications hub. It allows your smart electricity meter, gas meter, and in-home display (IHD) to communicate with each other. It's similar to your home Wi-Fi, but specifically for your energy devices. This network is crucial for sending meter readings and for your IHD to show you real-time energy usage.

Why alt HAN was developed

The standard HAN operates on a low-power radio signal, which works well in most properties. However, in some homes, this signal struggles. Thick walls, basements, or meters located far from the IHD can all create "not-spots" where the HAN signal is weak or non-existent. This leads to smart meters going offline, estimated bills, and customers missing out on the benefits of smart tariffs. Alt HAN was developed as an industry-wide solution to bridge these communication gaps and ensure universal smart meter coverage across the UK.

How alt HAN improves smart meter connectivity

Alt HAN works by providing alternative communication pathways for smart meters, especially in challenging environments. It's not a device you buy, but an underlying infrastructure solution that energy suppliers can utilise.

Addressing signal challenges

The core problem Alt HAN addresses is poor signal strength within the home. It uses different radio frequencies or communication technologies that can penetrate obstacles more effectively or transmit over longer distances. This means that even if your smart meter is in a difficult-to-reach location, it can still reliably send data.

Extending smart meter reach

By overcoming signal limitations, Alt HAN extends the effective range of smart meter communication. This is particularly important for properties where the electricity and gas meters are far apart, or where a meter is located in an outbuilding or a deep cellar. It ensures that the entire smart meter system - including the electricity meter, gas meter, and in-home display - can consistently stay connected.

Ensuring reliable data flow

Reliable data flow is the ultimate goal. When your smart meter is consistently offline, it can't send accurate readings to your energy supplier. This often results in estimated bills, which can be frustrating and inaccurate. Alt HAN aims to minimise these outages, ensuring that your energy usage data is captured and transmitted regularly, leading to more precise billing and better insights into your consumption.

Benefits of reliable smart meter data

Consistent smart meter connectivity, enabled by solutions like Alt HAN, unlocks significant advantages for you and the wider energy system.

Accurate billing and usage insights

With reliable data flowing from your smart meter, your energy supplier receives actual readings, not estimates. This means your bills are accurate, reflecting precisely how much energy you've used. Furthermore, access to real-time usage data through your in-home display or energy app allows you to understand your consumption patterns, identify energy-saving opportunities, and manage your budget more effectively. For more details on how your bill is calculated, you can refer to our guide on understanding your energy bill.

Access to smart tariffs

Many modern energy tariffs, known as smart tariffs, rely on half-hourly meter readings to offer variable pricing throughout the day. These tariffs can be significantly cheaper during off-peak hours, allowing you to save money by shifting your energy use (e.g., charging an electric vehicle overnight). Without a reliably connected smart meter, you can't access these innovative tariffs and their potential savings.

Enabling a modern energy experience

Reliable smart meter data is foundational for an effortless energy experience. It allows for seamless integration with energy management tools, supports the transition to a smarter, more flexible grid, and empowers you with greater control and insights into your energy use. This aligns with a future where energy is abundant and easy to manage, freeing you from constant worry about bills and usage.

Do you need an alt HAN solution?

If your in-home display often shows a "no signal" message or your energy bills are frequently estimated, you might be experiencing smart meter connectivity issues that an Alt HAN solution could help resolve.

Identifying connectivity issues

The first step is to check your in-home display (IHD). If it consistently shows that it's not connected to your smart meter or isn't displaying up-to-date information, that's a clear sign of a problem. You might also notice that your energy supplier is sending you estimated bills rather than ones based on actual readings. Many households in the UK are estimated to have smart meters that struggle with connectivity.

What to do if your smart meter is offline

1. Check your in-home display (IHD): Look for its current connectivity status. It might just need a restart or to be moved closer to your meter.
2. Contact your energy supplier: If your smart meter is consistently offline or not sending readings, your energy supplier is your first point of contact. They can diagnose the issue remotely and advise on next steps.
3. Discuss alt HAN: Ask your supplier whether an Alt HAN solution might be relevant for your property's connectivity challenges. They can assess if your home is in an area that could benefit from this technology.
4. Ensure you have a modern smart meter: Make sure your property has a modern smart meter (SMETS2). These meters are designed to work with the latest technology and industry solutions, including Alt HAN. A smart meter upgrade is typically free for eligible homes.
5. Explore smart tariffs: Once your smart meter connectivity is stable and reliable, you can explore smart tariffs and energy management tools to optimise your energy usage and potentially save money.

The role of your energy supplier

Your energy supplier plays a crucial role in addressing smart meter connectivity. They are responsible for installing and maintaining your smart meter, and for ensuring it communicates effectively. If you're experiencing issues, they can investigate, offer troubleshooting advice, and, if appropriate, arrange for an engineer visit or consider deploying an Alt HAN solution if your property qualifies. The Radio Teleswitch Service (RTS) for legacy meters is being phased out, with a switch-off starting 30 June 2025, necessitating smart meter upgrades for many homes.

The future of smart metering and alt HAN

The ongoing development and deployment of Alt HAN are key to achieving universal smart meter coverage and unlocking the full potential of a modern energy system in the UK.

Industry-wide collaboration

Alt HAN is a testament to industry-wide collaboration, with energy suppliers, network operators, and technology providers working together to overcome shared challenges. This collective effort ensures that the benefits of smart metering - from accurate billing to smart tariffs - can be extended to as many households as possible, fostering a more efficient and responsive energy market.

Ensuring universal smart meter coverage

The ultimate goal of Alt HAN is to ensure that every eligible home in the UK can have a functioning smart meter, regardless of its location or construction. By addressing connectivity "not-spots," Alt HAN helps to create a truly inclusive smart energy infrastructure, empowering more people with the data and tools they need to manage their energy effectively. This supports a future where energy is easy to understand and control, aligning with a vision of energy abundance and effortless management.

Fuse Energy is committed to providing a seamless and reliable energy experience. By supporting industry-wide solutions like Alt HAN, we ensure that our customers can always benefit from accurate smart meter data, access to smart tariffs, and the peace of mind that comes with 24/7 human customer support. Ready to experience the difference? Switch to Fuse Energy today.

Take the stress out of managing your energy. With Fuse Energy, you get clear pricing, real-time usage data, 24/7 human customer support, and a modern energy experience designed around you. Signing up takes just a few minutes, so you can take control of your bills from day one. Click here to switch to Fuse Energy today and start saving.

Managing your energy bills should be clear and easy to understand. Fuse Energy focuses on straightforward pricing, so you can see exactly what you're paying without unnecessary complexity. If you have a smart meter, you can view detailed usage data through the app or website, helping you understand how you can lower your bills. If you don't have a smart meter, Fuse Energy can upgrade your non-smart meter, completely for free. This can make it easier to track spending and make informed decisions about your energy use. Our 24/7 human support team is always on hand with fast response times of under 5 minutes whenever you need help. Click here to switch to Fuse Energy today. Find out about our mission by clicking here.