If you already have solar panels and are looking to get more from your system, you might be wondering if you can you add a battery after the original installation? The answer is yes. In fact, adding solar battery storage is one of the best ways to increase your energy independence and make better use of the energy you’re generating.
At West Coast Electrical, we install solar battery storage for homes across Lancashire. This includes areas such as Blackpool, Poulton-le-Fylde, Lytham St Annes, and Thornton-Cleveleys.Whether you installed your system recently or several years ago, adding battery storage helps you keep and use more of your solar energy.
How Solar Battery Storage Works
A solar battery stores excess electricity produced by your solar panels during the day. Instead of exporting this unused energy back to the grid, a battery allows you to hold onto it and use it when you actually need it – such as in the evenings or during periods of low generation.
With the right setup, this can significantly reduce the amount of electricity you draw from the grid. Over time, that means lower bills and a more sustainable way of living.
Retrofitting Battery Storage to an Existing System
If you’ve already installed solar panels, you can still add battery storage later – a process known as retrofitting. How your system is set up will influence the process, but in most cases, we can integrate a compatible battery without replacing or upgrading the entire setup.
We’ll usually assess the type of inverter you have. Some systems are designed with hybrid inverters that are battery-ready. Others might need a separate AC-coupled battery solution – which is still very effective and commonly used for retrofits.
What Brands and Batteries Do We Recommend?
At West Coast Electrical, we tailor each solar battery installation to suit the property. However, we often recommend the AlphaESS SMILE-G3 hybrid model due to its reliability and flexibility.
The AlphaESS SMILE-G3 offers:
• 5kW nominal output
• Modular capacity ranging from 3.8kWh to 15.4kWh (single phase)
• Expandable to up to 60.5kWh for three-phase systems
• 95% depth of discharge for maximum usable energy
• LFP battery chemistry (known for safety and longevity)
• IP65 rating for outdoor installation
• 10-year warranty
We also install other well-known battery brands, including Tesla Powerwall, depending on your needs and existing system setup.
How Much Does It Cost to Add a Battery?
The cost of adding battery storage to your existing solar system varies depending on the battery brand, capacity, and your current setup. While it’s an investment, many customers find it’s well worth it in the long run.
Please note: While solar battery storage can contribute to long-term energy savings, financial returns will vary depending on usage patterns, energy tariffs, and system performance.
Can I Add EV Charging Too?
If you drive an electric vehicle or are thinking about switching to one, battery storage can work hand in hand with an EV charger. Charging your car using energy stored from your panels can help reduce your reliance on the grid even further. This is especially useful in the evenings when electricity prices tend to be higher.
Our most popular home EV charger is the Hypervolt Home 3 Pro. It can be integrated with solar and battery systems for efficient smart charging. We also regularly install Ohme chargers, which are another reliable and user-friendly option.
Ready to add battery storage to your solar system?
We’ve completed hundreds of successful installations across Lancashire and are happy to advise on the best retrofit options for your home. Whether you’re based in Blackpool, Lytham St Annes, Poulton-le-Fylde, or further afield, our experienced team can guide you through every step.
Get in touch to arrange a free, no-obligation assessment.
