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An Alpha ESS battery can help Australian households store surplus rooftop solar for use later in the day, reduce reliance on grid electricity and build a more flexible home energy system.
AlphaESS offers residential energy-storage systems across different battery capacities and inverter configurations. The right system for your home depends on your solar generation, electricity consumption, electrical phase, backup requirements and plans for future energy use.
Tell us your postcode, current solar setup and battery requirements so we can help assess an appropriate Alpha ESS configuration for your property.
AlphaESS produces residential battery-storage systems designed to store electricity generated by rooftop solar and make that energy available when the home needs it. Depending on the selected model, Alpha ESS systems can combine battery storage, inverter functionality, monitoring and backup features within an integrated home-energy platform.
Current AlphaESS residential products include single-phase and three-phase configurations with different storage capacities, making the range relevant to households with different solar-system sizes and electricity-use profiles.
A home battery changes when your rooftop solar can be used. Instead of exporting all unused daytime solar electricity to the grid, compatible battery storage can retain part of that surplus energy for use later.
This can be useful for households that produce significant solar electricity during the day but consume more electricity in the late afternoon, evening or overnight.
AlphaESS offers modular and all-in-one residential storage solutions using lithium iron phosphate battery chemistry across selected current models.
Battery selection should be based on the complete energy system rather than the brand name alone. Alpha ESS is worth considering when its battery capacity, inverter configuration, backup functionality and installation requirements align with the needs of your property.
Different AlphaESS residential platforms provide multiple storage-capacity options, allowing the system to be selected around household energy requirements.
Current AlphaESS residential battery platforms use lithium iron phosphate, commonly referred to as LFP or LiFePO₄.
Selected systems support hybrid solar-and-battery configurations, while other configurations can suit battery retrofits to existing solar installations.
Compatible monitoring helps households understand solar generation, household electricity consumption and battery charging and discharging.
Selected AlphaESS systems support backup functionality when the required inverter, battery and electrical configuration are included.
Selected modular platforms allow multiple battery modules to be configured within the technical limits of the specific AlphaESS system.
AlphaESS has developed several residential energy-storage platforms. Model availability can change, so the exact battery and inverter configuration should always be confirmed when your quotation is prepared.
The SMILE-M5 is a current all-in-one residential energy-storage platform with 5kW nominal output and battery capacities from 5kWh to 20kWh. AlphaESS lists AC, DC and hybrid coupling options, making the platform relevant to both new solar-and-battery projects and suitable retrofit applications.
The SMILE-G3 family includes residential storage configurations designed for different household requirements. Selected configurations support AC or hybrid coupling, backup functionality and modular battery storage.
AlphaESS also offers three-phase residential energy-storage platforms. These can be relevant to homes with three-phase electrical supply or higher power requirements, subject to compatibility and site-specific design.
| Alpha ESS Platform | Example Capacity Range | Configuration | Potential Application |
|---|---|---|---|
| SMILE-M5 | 5–20kWh | AC / DC / Hybrid coupling | Residential solar + battery or suitable retrofit projects |
| SMILE-S5 / B5 | Approx. 5–30kWh depending on configuration | Hybrid / AC options | Flexible residential storage configurations |
| SMILE-S6-HV | 8.2–49.2kWh | High-voltage single-phase platform | Homes requiring larger modular storage |
| SMILE-G3 Series | Varies by battery/module configuration | Single & three-phase options available | Different residential power and storage requirements |
The best battery size is not necessarily the largest capacity available. Battery sizing should begin with how much surplus solar your home produces and how much electricity you normally consume after solar generation falls.
| Battery Size | May Be Considered For | Key Question |
|---|---|---|
| 5kWh | Lower-to-moderate evening energy use | Do you regularly have enough daytime solar surplus to charge it? |
| 10kWh | Many medium-use households | How much electricity do you typically import after sunset? |
| 15–20kWh | Higher-consumption households | Is your solar array large enough to support regular charging? |
| 20kWh+ | Larger or highly electrified homes | Will EVs, electric heating, pools or other loads use the extra stored energy? |
In many cases, battery storage can be added to an existing rooftop solar installation, but the correct approach depends on the equipment already installed.
Your existing solar inverter, array size, electrical phase, switchboard and available solar generation should be reviewed before an Alpha ESS configuration is selected.
For a broader comparison of storage solutions, visit our solar battery page .
Installing solar and battery storage as part of the same project allows the overall energy system to be designed together from the beginning.
The solar-array capacity, inverter, battery capacity and electrical configuration can be selected around expected household consumption rather than treating each component as a separate purchase.
This approach can be particularly useful for new solar customers who already know that energy storage, backup capability or future electrification will be important.
Selected AlphaESS residential systems support backup functionality, but owning a battery does not automatically mean every circuit in the home will continue operating during a grid outage.
Backup performance depends on the selected inverter, battery capacity, available state of charge, system output and the electrical circuits connected to the backup supply.
The SMILE-M5 is one of AlphaESS’s current residential energy-storage products available for Australia. AlphaESS specifies a 5kW nominal output with battery capacity options from 5kWh to 20kWh.
The system is designed as a stackable all-in-one solution and supports AC, DC and hybrid coupling. Manufacturer specifications also list IP65 ingress protection, Ethernet/Wi-Fi communication and a 10-year warranty for the current product.
Designed around a 5kW nominal output for residential energy-storage applications.
Multiple storage capacities provide flexibility when matching the battery to household requirements.
The platform combines inverter and battery functionality within a residential storage system.
The installed Alpha ESS battery price depends on the model, battery capacity, inverter configuration and installation requirements. The cost can also change according to whether the project is a new solar-and-battery installation or a battery retrofit.
Rather than relying on a generic battery price, request a quotation that identifies the exact battery model, usable storage capacity, inverter, backup inclusions and electrical work.
| Price Factor | Why It Matters |
|---|---|
| Battery Capacity | Larger usable storage generally requires additional battery modules and increases equipment cost. |
| Inverter Configuration | A new hybrid inverter or different integration method may be required depending on the existing solar system. |
| Backup Requirements | Backup functionality may require additional compatible equipment and electrical work. |
| Electrical Phase | Single-phase and three-phase homes can require different system configurations. |
| Switchboard | Older or unsuitable switchboards may require work before battery installation. |
| Battery Location | Cable routes, mounting surface, access and installation clearances can influence labour and materials. |
For detailed pricing information, see our Alpha ESS Battery Price Australia guide .
Battery incentives can reduce the upfront cost of eligible installations, but eligibility depends on the battery model, usable capacity, installation date and applicable program requirements.
Because incentive rules and certificate values can change, the quotation should clearly identify which incentive has been assumed and how it affects the quoted price.
Selected AlphaESS systems may be suitable for participation in compatible Virtual Power Plant programs, depending on the battery model, energy retailer or VPP provider and current program requirements.
A VPP can allow participating batteries to interact with the electricity market or grid under the provider’s program rules. Before joining, review how the battery may be controlled, available financial benefits, minimum participation periods and any impact on how you normally use stored energy.
Review electricity consumption, solar generation, exports and the household’s main battery objectives.
Assess the existing solar array and inverter or design the new solar-and-battery system together.
Select storage capacity based on solar surplus, evening demand, backup needs and future electricity use.
Confirm electrical phase, switchboard condition, battery location, cable routes and installation requirements.
Install the selected Alpha ESS equipment and complete the required electrical integration.
Test the system, configure monitoring and explain normal battery operation to the customer.
A battery quotation should make it easy to understand exactly what you are purchasing and what work is included in the installed price.
Australian Design Solar can assess Alpha ESS battery storage as part of a new solar-and-battery project or as a potential upgrade to an existing solar installation.
The objective is to select equipment around the property’s actual energy requirements rather than recommending storage capacity based only on a headline battery size.
We consider the existing solar system, electricity consumption and electrical configuration before recommending a battery solution.
Battery capacity can be considered against daytime solar surplus, evening demand and future household energy requirements.
Your quotation should identify the proposed equipment, capacity, installation scope and important project inclusions.
Australian Design Solar assists with solar and battery enquiries across major Australian markets. Product availability and installation service should be confirmed for your postcode when requesting a quotation.
Yes. AlphaESS manufactures residential energy-storage systems that can store electricity generated by compatible rooftop solar systems for later household use.
Current AlphaESS residential platforms such as the SMILE-M5 and SMILE-G3 use lithium iron phosphate battery chemistry, commonly called LFP or LiFePO₄.
Available capacity depends on the selected AlphaESS platform. Current residential products include configurations ranging from smaller household batteries through to substantially larger modular storage systems. The appropriate capacity should be based on your solar generation and electricity consumption.
A 10kWh battery may suit many households, but there is no universal ideal size. Review how much solar you export during the day and how much grid electricity you use after solar generation falls.
Potentially, yes. Compatibility depends on your existing inverter, solar-array size, electrical phase and selected Alpha ESS configuration. The existing installation should be assessed before equipment is selected.
Selected AlphaESS configurations support backup functionality when the required compatible equipment and electrical configuration are installed. Backup capability and supported circuits should be clearly specified in the quotation.
AlphaESS offers three-phase residential energy-storage options in addition to single-phase products. The appropriate system depends on the property’s electrical supply and required power and storage capacity.
Selected AlphaESS systems may be compatible with Virtual Power Plant programs. Eligibility depends on the battery configuration, retailer or VPP provider and the current requirements of the particular program.
Installed cost varies according to battery capacity, model, inverter requirements, backup configuration, electrical work and installation conditions. A property-specific quotation should identify the exact equipment and installation scope.
Australian Design Solar accepts solar and battery enquiries across major markets including Sydney, Melbourne, Brisbane, Adelaide and Canberra. Installation availability should be confirmed for your postcode.
Start with your electricity data. Compare daytime solar exports with afternoon, evening and overnight grid consumption, then consider backup needs, electrical phase, future EV charging and other planned household loads.
Find out which Alpha ESS battery configuration may suit your home. Tell Australian Design Solar about your existing solar system, electricity consumption, postcode and storage goals so we can assess an appropriate solar-and-battery solution.