Is a battery worth it in 2026?
Sometimes yes, sometimes genuinely not. The honest test comes down to two numbers, and any installer who says yes before asking for them is guessing.
Battery storage has moved from a luxury to a mainstream option, helped considerably by the federal discount. That does not mean it is right for every property. Here is the test we actually apply.
The two numbers that decide it
First: how much power do you use after dark? A battery earns its money by letting you avoid buying expensive grid power in the evening. If most of your consumption happens while the sun is up, a battery has less work to do.
Second: what is your feed-in tariff? The value of storing a kilowatt-hour is the difference between what you pay to import and what you are paid to export. When feed-in rates are low, that gap is wide and storage looks good. If you are on a legacy premium tariff, exporting may still be worth more.
What the rebate changed
The Cheaper Home Batteries Program takes roughly 30% off the upfront cost, applied as a discount at the point of sale rather than a payment you chase later.
The important detail is that since 1 May 2026 the rate tapers by size. The first 14 kWh of usable capacity attracts the full rate. Capacity between 14 and 28 kWh attracts 60%. Between 28 and 50 kWh it drops to 15%. Beyond 50 kWh, nothing.
The practical effect: for most homes, sizing somewhere near the top of the full-rate band gives the best value per dollar. Buying a very large battery to "maximise the rebate" no longer works the way it once did.
Backup is a separate decision
Many people assume a battery keeps the lights on in a blackout. It only does so if it has been specifically configured for backup, which requires particular equipment and wiring, and usually covers selected circuits rather than the whole property. If outages matter to you, say so early — it changes the design.
When we say no
If your usage is overwhelmingly daytime, your feed-in rate is high, and you have no plans for an electric vehicle, we will tell you a battery is hard to justify on economics alone. Plenty of people still choose one for resilience or independence, which is a perfectly good reason — it is just not a financial one.
The battery calculator applies the current tiers to your numbers, and the residential rebates page explains the scheme in full.
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