FAQs – Batteries

A home battery system stores excess electricity, usually generated by your solar PV system, for use later when energy can’t be generated, such as at night or during poor weather. This reduces reliance on the grid and helps lower electricity bills while increasing the use of renewable energy.

Homeowners consider batteries to increase self-sufficiency, run electric vehicles on stored solar energy, reduce peak-time grid demand, ride through power cuts (with compatible systems), and store cheaper off-peak electricity for later use.

A home battery stores electricity generated when demand is low and releases it when demand is higher, such as evenings or night-time. This allows you to use solar energy before drawing power from the grid.

No. Existing feed-in-tariff payments are not affected by installing a home battery system and will continue for the remainder of the contract term.

Home batteries can be either AC or DC coupled. Both types can be installed with existing solar PV systems when designed and installed correctly by an experienced installer.

This depends on battery size and household demand. High evening usage or multiple high-load appliances may drain smaller batteries more quickly. Systems should be sized to match your usage.

Battery size depends on household energy use and solar generation. Typical systems range from 2.5–15 kWh. Systems are usually sized to cover evening and night-time usage while matching solar output.

Most home batteries come with warranties of around 10 years and are designed to last significantly longer, with gradual capacity degradation over thousands of charge cycles.

Yes. All reputable home battery systems include warranties, typically around 10 years, covering performance and capacity retention.

Costs vary by battery size, brand, and installation complexity. Combining battery installation with solar or EV charging can reduce overall costs.

Home battery systems should be installed by experienced renewable energy installers to ensure correct integration with solar PV and compliance with safety standards.

Some home batteries can be installed outdoors, depending on the model. Outdoor installations must be protected from debris, flooding, and extreme conditions.

Savings vary by usage and generation. Batteries can improve solar payback by increasing self-consumption and allowing use of cheaper off-peak electricity.

Some battery systems can supply power during outages, but not all models include this capability. System selection is important.

Yes, some batteries can be charged from the grid alone, allowing you to store cheaper off-peak electricity and use it during peak times.