With energy prices staying high, more UK households are looking at ways to take control of their power use. One of the smartest upgrades alongside solar panels is home battery storage. By storing the electricity you generate, you can use more of your own power, cut grid reliance and increase your savings.

According to the Energy Saving Trust, a well-sized solar battery can help households use up to 80% of their self-generated electricity, compared to around 40–50% without one.

What Is Battery Storage?

A battery storage system allows you to capture the electricity your solar panels generate during the day and use it later, such as in the evening when demand is highest. Instead of exporting your surplus back to the grid at a low rate, you keep it and use it when it’s most valuable.

Some systems can even operate in stand-alone mode by charging from the grid at off-peak times, though the biggest savings come from pairing batteries with solar PV.

Solar-Integrated vs Stand-Alone Battery Storage

  • Solar-Integrated: The most efficient setup, storing excess solar generation for use at night or during cloudy spells.
  • Stand-Alone: Draws electricity from the grid at cheaper times for later use, but doesn’t maximise the value of your solar panels.

For most homes, adding a battery at the same time as installing solar is the most cost-effective option. Industry analysis shows buying a battery separately can add £2,000–£3,000 more compared to a combined installation.

Key Benefits of Home Battery Storage

1. Lower Bills

By storing solar energy, you reduce how much electricity you need from the grid at peak prices.

2. Greater Energy Independence

Use your own power when you want it, not just when the sun is shining.

3. Reduce Wastage

Instead of exporting surplus electricity for pennies, you keep it for maximum value.

4. Backup in Power Cuts

Some battery systems provide power during outages, giving households extra security.

5. Environmental Benefits

Maximising solar usage means less need for fossil-fuelled grid energy, reducing your home’s carbon footprint.

Payback Time and Return on Investment in the UK

The upfront investment in solar panels and a battery is considerably more affordable than just a few years ago and the returns are becoming increasingly more attractive. Independent research (Loop, 2025) suggests a combined solar and battery system can pay for itself in around seven to ten years, depending on household size, energy use and tariff.

Real-World Example

One of our customers in Edgware added a 10kWh battery to their solar panel system. They now run their home almost entirely from self-generated power between March and October, with the battery covering 100% of evening demand. During the winter months, the home is still able to cover over 90% of usage thanks to their eco-friendly battery storage system. The result: significantly lower energy bills!

Why Choose Mummery & Mummery?

We combine decades of roofing expertise with modern renewable energy solutions, ensuring every battery system integrates seamlessly with your panels and your property. Our customers benefit from:

  • Premium solar batteries from trusted brands
  • Expert installation by accredited professionals
  • Exclusive 15-year workmanship guarantee
  • Ongoing aftercare and support

Want to know if battery storage is right for your home?
Book your free, no-obligation survey today and discover how to maximise the value of your solar panels.

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