Should you install solar panels only, or solar with a battery? It is the most common question we hear from Melbourne and Victorian homeowners. This guide compares the savings, so you can decide what is right for your household and budget.
The short version
- Solar only lowers your daytime bills and earns a small feed-in credit for exported power.
- Solar plus a battery lets you store daytime solar and use it at night, cutting far more off your bill.
- A battery also gives blackout backup, which solar alone cannot provide.
How solar-only saves money
Solar panels generate electricity during the day. When your home uses that power directly, you avoid buying it from the grid. Any excess is exported and earns a feed-in tariff, which in Victoria is relatively low. The catch is that most households use the majority of their power in the morning and evening, when solar generation is low or zero, so a lot of cheap daytime solar gets exported for a small credit while you buy expensive power at night.
How adding a battery changes the maths
A battery stores your surplus daytime solar instead of exporting it cheaply. In the evening, your home runs on that stored energy rather than buying from the grid at full price. For a typical Melbourne family who uses most of their power at night, this shifts a much larger share of the bill onto free solar, which is why battery households often see their bills drop close to zero.
Blackout protection
Solar alone shuts down during a grid outage for safety reasons. A battery configured with backup keeps your essential circuits running during a blackout. For homes in storm-prone parts of Victoria, this is often reason enough on its own.
Which saves more?
In pure bill terms, solar plus a battery saves more than solar alone for most Victorian households, especially those with high evening usage. Solar-only has a lower upfront cost and still delivers savings, so it can suit budget-conscious buyers or homes that use most of their power during the day. With current federal and Victorian rebates, the gap in upfront cost between the two has narrowed significantly.
Our recommendation for Victorian homes
If you already have solar, adding a battery is usually the fastest way to cut your remaining bill. If you have neither, a solar and battery package installed together lets you generate, store and save from day one, and maximises the rebates you can claim. Use our free savings calculator or request a quote and we will show you the numbers for your home.
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