The Smart Case for Adding a Solar Battery to Your Home

November 20, 2025
News,

As more Australian households invest in solar, many are now looking to take the next step: adding a battery. At The Heat Shop, we see first-hand how modern battery technology—such as the Tesla Powerwall and the Sigenergy SigenStor—can transform a standard solar system into a highly efficient, reliable energy solution.

A solar battery allows you to store excess energy generated during the day and use it later, particularly in the evening when household demand is highest. Rather than exporting surplus electricity back to the grid for a minimal feed-in tariff, you can keep more of what you produce. This shift greatly improves the value of your solar system and reduces your reliance on rising electricity prices.

The Tesla Powerwall remains one of the most recognisable options on the market. Known for its sleek design, strong warranty, and easy integration, it offers dependable performance for families seeking long-term savings. Sigenergy’s SigenStor battery, on the other hand, is gaining attention for its flexibility and advanced safety features. It is modular, scalable, and designed with cutting-edge energy management technology—ideal for homes wanting both performance and growth potential.

Beyond the day-to-day advantages, adding a battery gives you improved energy security. During grid outages, a properly configured battery system can keep essential circuits running, maintaining comfort and peace of mind.

While battery rebates differ from solar panel incentives, many customers still benefit from STC (Small-scale Technology Certificate) savings when installing solar panels as part of a new system. These STCs reduce the upfront cost of the solar portion, making a combined solar-and-battery upgrade more accessible.

For households in Victoria and across Australia, a battery paired with solar is a practical, future-focused investment. If you’re considering the move, The Heat Shop can guide you through the options and help design a system suited to your home, your energy use, and your long-term goals.