Solar batteries are quickly becoming one of the most popular upgrades for Australian homes with rooftop solar. With electricity prices rising and new battery incentives available, many households are asking the same question:

What size solar battery do I actually need?

Choosing the right battery size matters. Too small and it may run out before the night is over. Too large and you might pay for storage capacity you rarely use.

The ideal battery size depends on several factors including your household energy usage, the size of your solar system, and whether you plan to power things like electric vehicles or backup circuits during blackouts.

This guide breaks down the key things that influence battery sizing so homeowners can make a more informed decision.

When people think about solar, they usually picture panels on the roof or maybe a battery on the garage wall. But there’s one piece of equipment doing the real heavy lifting behind the scenes… the solar inverter.

Often overlooked, the inverter is the heart and brain of your solar system. It determines how efficiently your system runs, how much energy you actually use, and whether your setup can grow in the future with batteries, EV chargers, or backup power.

Since the Cheaper Home Batteries Program launched in July 2025, Australia has been in the middle of a full-blown home battery boom. What was expected to be a steady, decade-long rollout has instead turned into one of the fastest-moving energy programs the country has seen.

In this guide, we’ll break down how popular the rebate has been so far, what the numbers actually look like, why the funding may not last to 2030, and what this means if you’re thinking about adding a battery to your solar system.

The demand for Electric Vehicles in Australia and around the world has surged in recent months and is only being hindered by availability. In Australia, EVs have even overtaken their ICE (Internal Combustion Engine) competitors on the most popular passenger vehicles charts. As COVID induced manufacturing and transport delays continue to ease, the presence of EVs will continue to grow.

SunPeople's managing director and co-owner Dave Love chats all things solar and business with Trever Molenaar from Molenaar + Mcneice real estate agency for Episode #4 of the Illawarra Business Leaders Interview, Series 2.