Panels generate
Solar panels generate electricity when sunlight is available.
Solar battery solutions Australia
Solar battery solutions for Australian homes and businesses
Store suitable solar generation for use later with a battery solution shaped around your system, electricity use and backup priorities. Kveto Sunspire helps make capacity, compatibility and next steps clearer.
- New and existing solar systems
- Capacity and compatibility discussion
- Backup requirements considered
Store suitable excess solarKeep some solar generation for use at another time.
Increase self-consumptionUse more of the electricity generated at your property.
Explore backup optionsDefine the circuits and loads that matter during an outage.
Understand eligibilityDiscuss current program assumptions before proceeding.
Solar energy, available later
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How solar panels and batteries work together
A battery can store suitable excess electricity from a rooftop solar system. The property may then use that stored energy when solar generation is lower or electricity requirements are higher.
The property uses solar
Available generation can first supply eligible home or business loads.
The battery charges
Suitable excess generation can charge a compatible battery system.
Stored energy is used
The battery may discharge later according to its settings and available charge.
Start with the reason
01 / LATER USE
02 / SELF-CONSUMPTION
03 / EXPORT LIMITS
04 / RESILIENCE
05 / FUTURE NEEDS
06 / ENERGY PROGRAMS
A solar battery should solve a defined energy need
Battery storage can support different objectives. The appropriate design depends on the result you value, the energy available to charge the battery and the loads it may need to supply.
Use more solar after sunset
Shift suitable solar generation into evening or overnight usage periods.
Purchase less grid electricity
Stored solar may reduce some electricity imported from the grid.
Store otherwise curtailed energy
A battery may capture generation that cannot be exported, subject to design.
Support selected backup loads
Compatible equipment can be designed around defined circuits and power needs.
Prepare for electrification
Discuss future EV charging, electric appliances and changing usage patterns.
Explore VPP participation
Review an eligible Virtual Power Plant program separately before joining.
Important: a battery may not be financially beneficial for every property. Suitability depends on available solar, usage timing, tariffs, system cost, operating settings and the outcome you want.
Choose your starting point
Existing solar
New system
Backup priority
Battery pathways for existing and planned solar
The right pathway depends on what is already installed, product compatibility, the installation site, electrical requirements and whether backup is part of the objective.
Add battery storage
For properties with an operating rooftop solar system.
- Existing inverter review
- Solar capacity and excess generation
- AC-coupled pathway discussion
- Switchboard and location factors
Solar and battery together
For a coordinated new solar-and-storage design.
- Solar and battery sizing together
- AC or DC coupling considered
- Hybrid inverter options
- Future usage included
Design for selected resilience
For owners with clearly defined outage requirements.
- Essential circuits identified
- Power and surge needs considered
- Phase arrangement reviewed
- Islandable operation discussed
10 kW is not 10 kWhPower and stored energy describe different battery capabilities. A useful proposal should clearly show both.
Battery sizing explained
Capacity and power output are different
Battery comparisons can be confusing because capacity and power are often discussed together. Both matter, but they answer different questions.
kWhEnergy capacity: how much electrical energy the battery can store. Usable capacity may be lower than nominal capacity.
kWPower output: how much electrical power the battery can deliver at one time to supported loads.
Backup duration depends on usable capacity, starting charge, the supported loads, battery power limits and whether solar can recharge the system during the outage.
- Evening and overnight electricity use
- Excess solar available for charging
- Existing or proposed solar capacity
- Essential backup circuits and appliances
- Tariff, phase and future energy needs
Existing-system compatibility
Can a battery be added to existing solar panels?
Often it may be possible, but the practical pathway depends on the current system and property. The assessment should identify compatibility before a product is recommended.
- Solar array and inverter details
- AC-coupled or other compatible pathway
- Available battery installation location
- Switchboard and metering requirements
- Phase arrangement and supported loads
- Monitoring and internet connectivity
- Existing warranty implications
AC coupling and DC coupling
AC-coupled systems generally use a separate battery inverter. This is a common pathway when adding storage to existing solar.
DC-coupled systems may use a compatible hybrid inverter to manage solar and battery energy.
The better arrangement depends on the existing equipment, new-system design, efficiency considerations, backup requirements and product compatibility.
Blackout expectations
Battery storage does not automatically mean backup power
Standard grid-connected solar normally shuts down during a power outage for safety. A battery can support backup only when the system includes compatible equipment and is configured for that purpose.
Discuss the exact appliances or circuits that matter. Whole-property expectations, large loads, motor starting power and three-phase arrangements can materially change the design.
Define your backup needsSelected circuitsBackup may be limited to lighting, refrigeration, communications or other nominated circuits.
Power limitsThe combined appliances must remain within battery and inverter output limits.
Stored energyAvailable runtime changes with charge level and the electricity consumed during the outage.
Islandable operationThe system must safely disconnect from the grid and operate according to its design.
Australian battery support
Understanding the Cheaper Home Batteries Program
Australia's program can reduce the upfront cost of an eligible small-scale battery installation through small-scale technology certificates. Eligibility depends on the current rules, product, installer, system and installation.
Official guidance current in July 2026 supports eligible residential and non-residential installations with battery systems from 5 kWh to 100 kWh nominal capacity. STCs apply to the first 50 kWh of usable capacity, and the level of support tapers for larger capacities.
Program settings and certificate factors can change. The proposal should identify the eligibility and discount assumptions used at the time it is prepared.
Check my battery pathway
Solar battery price and value
What affects battery cost, savings and payback?
There is no responsible universal price or payback figure. A useful estimate needs product, property, usage and tariff assumptions that can be reviewed.
Capacity and powerUsable energy, continuous output and peak output influence capability and price.
CompatibilityExisting solar and inverter equipment may change the integration pathway.
Backup scopeBackup hardware, circuits and phase requirements add design and installation work.
Electrical workSwitchboard, metering, cabling and site conditions may affect the final scope.
Energy profileExcess solar, evening usage, tariffs and export arrangements shape potential value.
EligibilityThe current certificate-based discount depends on program requirements and timing.
Compare battery quotes
What should a useful battery proposal make clear?
A proposal should make capabilities, assumptions, inclusions and responsibilities easy to compare.
Ask a proposal questionCapacityNominal and usable energy capacity in kWh.
PowerContinuous and peak output in kW.
IntegrationInverter, coupling and existing-system compatibility.
BackupSupported circuits, phases, output and operating behaviour.
InstallationLocation, electrical scope, monitoring and connectivity.
Financial assumptionsTariffs, usage, degradation, discount and calculation period.
WarrantiesYears, cycles, throughput, exclusions and responsible parties.
SupportHandover, monitoring access and fault-contact pathway.
From goals to stored energy
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A clear solar battery assessment and installation pathway
Energy goals
Clarify savings, self-consumption, backup or other priorities.
System review
Review existing or planned solar, usage and available information.
Battery proposal
Discuss capacity, power, integration and backup assumptions.
Site checks
Confirm location, switchboard, electrical and access requirements.
Eligibility
Confirm current product, installer and program requirements.
Installation
Complete the agreed installation and system configuration.
Handover
Receive operating, monitoring, backup and support information.
Ongoing use
Review settings when tariffs or energy priorities change.
Does battery storage suit your property?
Bring a recent bill, existing solar details and your main battery goal. We will help identify the next information needed.
Related solar services
Connect battery storage with the right solar pathway
Solar battery Australia FAQs
Common battery questions
General answers to support your research. A property-specific recommendation requires system, usage and site information.
Ask another questionWhat is a solar battery and how does it work?
A solar battery stores electrical energy for later use. With a compatible solar system, suitable excess generation can charge the battery before the stored energy is discharged according to the system settings and property demand.
Is a solar battery worth it in Australia?
It depends on excess solar generation, evening and overnight use, tariffs, exports, battery cost, degradation, applicable support and non-financial goals such as backup. A battery may not pay for itself within its lifetime in every situation.
How much does a solar battery cost in Australia?
Price varies with usable capacity, power output, inverter arrangement, brand, backup scope, installation complexity, electrical work and applicable discount. Obtain a proposal that clearly states all inclusions and assumptions.
What size solar battery do I need?
Sizing should consider evening use, excess solar, existing solar capacity, tariff, essential backup loads, phase arrangement and future electricity needs. Bigger is not automatically better.
What is the difference between kW and kWh?
kWh describes energy capacity - how much energy can be stored. kW describes power - how much can be delivered at one time. Both affect what a battery can do.
Can I add a battery to my existing solar system?
Often it may be possible, but compatibility depends on the current inverter, solar capacity, switchboard, installation location, phase arrangement, monitoring and the proposed battery pathway.
Will a solar battery work during a blackout?
Only when compatible equipment is installed and configured for backup. Not every battery installation provides backup, and some systems support only selected circuits or phases.
How long will a 10 kWh battery last?
There is no single duration. Runtime depends on usable capacity, starting charge, battery power limits and the appliances operating. For example, heavier loads consume stored energy much faster than lighting and communications.
How long do solar batteries last?
Lifetime may be described through years, charge cycles, energy throughput and remaining capacity. Product conditions, operating temperature, usage and warranty terms all matter.
What is usable battery capacity?
Usable capacity is the portion of stored energy available within the battery's permitted operating range. It may be lower than the nominal capacity shown in the product name.
Are batteries eligible for the Cheaper Home Batteries Program?
Eligible installations may receive certificate-based support when current product, installer, solar connection, capacity, documentation and other program requirements are met. Eligibility must be confirmed for the specific installation.
Can a small business receive the battery discount?
The current program supports eligible residential and non-residential premises, including businesses, subject to all requirements. The benefit should not be assumed until eligibility is checked.
Can a battery join a Virtual Power Plant?
Potentially, if the battery, retailer, location and program are compatible. Review control permissions, payments, event rules, battery operation, contract terms and exit conditions before joining.
What should I compare between battery quotes?
Compare usable capacity, continuous and peak power, coupling, backup scope, installation inclusions, monitoring, warranties, expected savings assumptions, discount eligibility and who provides ongoing support.
Start your battery assessment
Find out whether solar battery storage suits your energy goals
Tell Kveto Sunspire about your property, existing or planned solar, electricity use and backup priorities. We will help turn those details into a clearer next step.
General information only. Battery suitability, compatibility, backup capability, runtime, savings, payback, program eligibility and cost vary by property, usage, solar generation, tariffs, equipment, installation and other factors. Program rules can change. Obtain a property-specific proposal, review its assumptions and confirm current eligibility before making a decision.