Understanding battery storage options is essential, whether you’re considering standalone systems or pairing them with solar panels. While a solar and battery combination is often the ideal solution for maximum savings and energy independence, standalone battery storage systems also offer significant benefits for many UK households.
In this guide, we’ll explore how standalone batteries work, their costs, benefits, and why some people opt for battery-only systems.
Can You Have a Storage Battery Without Solar Panels?
Yes, you absolutely can. Storage batteries, also known as battery energy storage systems (BESS), are versatile devices designed to store electricity for later use. While solar panels are a common pairing, batteries can also store electricity from the grid or renewable sources like wind.
Standalone batteries are particularly popular with those who don’t have the roof space, budget, or inclination to install solar panels but still want to take advantage of lower energy costs or backup power during outages.
How Do Battery Storage Systems Work Without Solar Panels?
Battery storage systems are designed to store electricity for later use. Without solar panels, these systems rely on the grid or alternative renewable energy sources, such as wind or hydroelectric power, to charge the battery. The core function remains the same: to store electricity when it’s available and release it during times of higher demand or when grid electricity is more expensive.
When installing a standalone battery system, your installer will determine the best location for the battery, typically in an outdoor area or a garage, in line with modern safety guidelines. An inverter, either built into the battery or installed separately, is essential to convert stored electricity into a usable form for your home. This setup also includes a communication cable that links the battery to your electricity meter, allowing it to interact with the grid and any associated apps for monitoring and control.
The Benefits of Standalone Battery Storage
While batteries are often paired with solar panels for maximum efficiency, standalone systems still offer substantial advantages:
1. Reduced Energy Costs
With a time-of-use tariff, you can charge your battery during off-peak hours when electricity prices are lower. This stored energy can then be used during peak times, reducing your reliance on expensive daytime rates.
For example, during the October 2024 price cap, Economy 7 tariffs allowed consumers to access electricity for as little as 13.19p per kilowatt-hour (kWh) during off-peak hours. Using this strategy, households can significantly cut their energy bills, even without solar panels.
2. Backup Power During Outages
Many batteries come equipped with an Emergency Power Supply (EPS) feature, providing backup electricity during power cuts. While power outages are rare in the UK, this can be a lifesaver for those relying on essential medical equipment or simply seeking peace of mind.
3. Compatibility With Future Solar Installation
If you’re considering solar panels down the line, standalone batteries are an excellent starting point. Many systems can be easily integrated with solar panels later, allowing you to future-proof your energy setup.
Grants and Incentives: What’s Available?
Unfortunately, grants and incentives for standalone battery systems are limited. However, UK homeowners can benefit from the 0% VAT rate on battery installations, whether installed with or without solar panels. This relief is set to continue until at least March 2027. Some mortgage providers, including Barclays and Halifax, offer cashback schemes for energy-efficient upgrades, but these are exceptions rather than the rule.
For households considering solar panels, schemes such as ECO4 and the Home Upgrade Grant provide funding for solar and battery systems in eligible properties. While these programmes are primarily aimed at low-income households or off-grid properties, they underscore the financial and environmental advantages of combining solar panels with battery storage.
Standalone Batteries vs. Solar and Battery Systems
While standalone batteries are a fantastic option for many, it’s worth exploring the added benefits of pairing them with solar panels:
- Lower Energy Costs: Solar panels generate free electricity, significantly reducing your reliance on grid power. Combined with a battery, you can store excess solar energy for use during evenings or cloudy days.
- Faster Payback Period: A solar and battery system typically pays for itself more quickly than a standalone battery, thanks to the free electricity generated by the panels and export tariffs.
- Reduced Carbon Footprint: Solar panels drastically reduce your household’s carbon emissions, making your home greener and more sustainable.
That said, standalone batteries remain an excellent choice for those who cannot install solar panels or wish to prioritise flexibility.
Cost of Standalone Batteries
Standalone battery systems are an investment. A typical 5kWh battery costs around £5,000, while larger 10kWh systems can cost up to £7,000. As battery technology is changing all of the time making system prices change too, it’s always best to speak to a battery storage expert, to ensure you are getting the best possible system for your property and energy usage and have the latest prices.
Although the upfront costs are higher without solar panels, standalone batteries still provide value over time through reduced electricity bills and backup power capabilities.
If you’re planning to add solar panels later, it’s often more cost-effective to install both at the same time, as this reduces labour and equipment costs.
Are Standalone Batteries Right for You?
Standalone battery systems are ideal for those looking to reduce their reliance on peak-time electricity or gain backup power without the commitment of solar panels. They are especially useful for homes on time-of-use tariffs or those who may add solar panels in the future.
While combining solar panels with a battery maximises savings and environmental benefits, standalone systems still offer a practical and effective solution for many UK households.
Considering Battery Storage? Let Solar Xpress Help
At Solar Xpress, we offer tailored energy solutions, including standalone batteries and solar & battery systems. Whether you’re ready to install a battery-only system or want to explore the benefits of adding solar panels, our expert team is here to help.
Get in touch with us today to learn more about how we can help you reduce your energy costs and contribute to a more sustainable future.
