Add a Battery to Your Existing Solar System
Already have solar panels? Adding a battery maximises your self-consumption and reduces grid dependency. Federal rebate available.
Add-on battery + solar context (product schedule)
Battery schedule: multiple OEMs with 10-year warranty framing; Tesla 13.5 kWh→216 kWh stack headline; Sungrow 25.6 kWh. Solar panels line: 25-year warranty (PDF). We reconcile existing inverter, DNSP export rules, and chosen OEM before ordering.
Solar PV (PDF)Battery OEM listResult
Panel warranty (PDF)
25 years
Battery warranty (PDF)
10 years (range)
Tesla usable
13.5 kWh / unit
Sungrow (PDF)
25.6 kWh
Retrofit step
Inverter audit
Schedule brands
See PDF battery table
Retrofit Battery Storage to Your Existing Solar
If you have existing solar panels, adding a battery is one of the most effective ways to increase your energy independence. Instead of exporting excess solar energy to the grid at low feed-in tariff rates, a battery stores that energy for use in the evening when electricity prices are highest.
We assess your existing solar system, inverter compatibility, and daily usage patterns to recommend the right battery size and brand for your home.
VEU · Federal · Solar Vic
Government Rebates Available
Reduce the cost of your battery retrofit with available government incentives.
Victorian Energy Upgrades — significant rebates on eligible air conditioning installations
Cheaper Home Batteries Program — up to $372/kWh off eligible home battery systems
Interest-free loans and rebates for solar and battery installations in Victoria