kWh measures stored energy; kW measures power for running appliances. Storage figures are per battery or block, before choosing your complete system.
Pick two or three to compare side by side.
AlphaESS
AlphaESS SMILE-G3-S5 / SMILE-G3-B5
Keep your existing solar
ProThe B5 version is designed for adding storage to existing solar.
ConThe S5 is the new-solar version; check which one your quote includes.
During a blackout
CheckNo confirmed benefit.
ConConfirm which appliances will run during an outage and what backup equipment your quote includes.
Storage now and later
Pro9.3 or 10.1 kWh advertised per block; more blocks can be added.
ConEnergy you can actually use depends on battery version; expansion still shares a 5 kW power limit.
BYD
BYD Battery-Box Premium HVM with BCU 2.0
Keep your existing solar
ProCan work with solar inverters on BYD's approved list.
ConYour existing inverter must be an approved model; check it before ordering.
During a blackout
ProSupports backup when paired with a suitable inverter and installation.
ConThe inverter determines which appliances can run together, regardless of the battery rating.
Storage now and later
Pro2.76 kWh per block; supported towers offer 8.28 to 22.08 kWh each.
ConA complete tower needs several blocks; your inverter and block count must be chosen together.
BYD
BYD Battery-Box Premium LVS
Keep your existing solar
ProCan work with solar inverters on BYD's approved list.
ConYour existing inverter must be on the approved list and support your chosen battery size.
During a blackout
ProCan supply backup power through a suitable inverter and installation.
ConThe inverter and wiring determine which appliances run; the battery alone does not provide blackout cover.
Storage now and later
Pro4 kWh available per block; more blocks or supported extra towers can be added.
ConLarger towers cannot be joined together; confirm the allowed layout before expanding.
Enphase
Enphase IQ Battery 5P with FlexPhase
Keep your existing solar
ProCan join a supported existing Enphase solar setup.
ConYour exact solar equipment needs checking, especially if you want it working during a blackout.
During a blackout
ProCan keep selected appliances running when the full backup setup is installed.
ConBackup needs extra equipment; ask which appliances can run together.
Storage now and later
Pro5 kWh available per unit; more units can be added.
ConThe backup equipment and existing solar setup limit how many units can be added.
Fox ESS
Fox ESS CQ7 modular battery
Keep your existing solar
ProCan keep an existing Fox solar inverter listed as compatible.
ConOther solar inverters need a separate, verified connection design.
During a blackout
ProCan supply backup through a compatible Fox inverter and a correctly wired backup connection.
ConThe chosen inverter limits which appliances run together; a bigger battery does not cover every circuit.
Storage now and later
Pro6.96 kWh available per block; more blocks can be added.
ConYour inverter needs a minimum number of blocks and limits the maximum stack.
Fox ESS
Fox ESS EP12 Plus (w)
Keep your existing solar
CheckNo confirmed benefit.
ConCheck whether your current Fox solar inverter supports this exact battery pack.
During a blackout
CheckNo confirmed benefit.
ConAsk whether your quoted Fox system includes blackout cover and which appliances it can run.
Storage now and later
Pro11.52 kWh available per pack; a supported system accepts up to four packs.
ConExpansion needs a compatible inverter and room for 98 kg battery packs.
GoodWe
GoodWe ESA single-phase all-in-one
Keep your existing solar
CheckNo confirmed benefit.
ConConfirm which ESA version can keep your existing solar inverter before accepting a quote.
During a blackout
ProCan keep selected appliances powered through a correctly designed backup connection.
ConNormal grid power passing through the system is not its available power during a blackout.
Storage now and later
Pro5, 5.9, 8 or 8.85 kWh available per block; compatible blocks can be added.
ConThe exact battery version determines capacity; your installer must confirm the permitted size and combination.
GoodWe
GoodWe Lynx Home F G2
Keep your existing solar
ProCan keep a supported GoodWe solar inverter designed to connect batteries.
ConYour exact inverter must support this battery and the chosen storage size.
During a blackout
CheckNo confirmed benefit.
ConAsk whether your quoted inverter provides blackout cover and which appliances it can run.
Storage now and later
Pro3.2 kWh available per block; more blocks can be added.
ConA complete tower needs several blocks; your solar inverter limits total storage.
Growatt
Growatt ALP LV E2
Keep your existing solar
ProCan connect to an existing solar inverter that supports this battery.
ConThe exact inverter must be checked; not every solar setup is compatible.
During a blackout
CheckNo confirmed benefit.
ConCheck backup equipment and appliance limits; this battery alone does not confirm blackout cover.
Storage now and later
Pro5 kWh available per block; expand with a supported battery combination.
ConThe battery allows up to ten blocks; your inverter and installation can set a lower limit.
Growatt
Growatt APX HV Battery S2
Keep your existing solar
ProCan keep a supported Growatt solar inverter designed to connect batteries.
ConYour inverter must support this exact APX version and battery combination.
During a blackout
CheckNo confirmed benefit.
ConConfirm whether the quoted inverter supports backup and which appliances it can run.
Storage now and later
Pro5 kWh advertised per block; more compatible blocks can be added.
ConAPX versions are not interchangeable; confirm which battery blocks your system accepts.
Redback
Redback Hybrid Battery System G3
Keep your existing solar
CheckNo confirmed benefit.
ConConfirm whether your existing solar inverter can stay alongside the quoted Redback system.
During a blackout
ProCan keep selected household circuits running during an outage.
ConThe 5 or 6 kW power limit restricts which appliances can run together.
Storage now and later
Pro4.8 kWh advertised per unit; up to four fit the standard G3 enclosure.
ConEnergy you can use is lower; newer packages differ, so confirm quoted capacity and expansion.
SAJ
SAJ HS3 single-phase AU
Keep your existing solar
CheckNo confirmed benefit.
ConConfirm whether your existing solar inverter can stay and which equipment must change.
During a blackout
ProCan power selected appliances through its designed backup connection.
ConCheck which appliances are covered and the actual backup power of your quoted system.
Storage now and later
Pro5 kWh per battery block; more blocks can be added.
ConAustralian expansion limits differ from the general website; confirm your quote's maximum.
Sigenergy
Sigenergy SigenStor with BAT 10.0 modules
Keep your existing solar
ProCan store spare energy from existing solar while keeping the solar inverter.
ConKeeping solar working during a blackout needs verified inverter compatibility and the right connection.
During a blackout
ProCan power selected appliances with a Sigenergy backup box and a compatible battery system.
ConBackup equipment and wiring must be included; the quoted system limits which appliances run together.
Storage now and later
Pro9 kWh available per battery block; more blocks can be added.
ConA compatible system design still limits the size you can add.
Safety check: Recall: older SigenStor EC 8/10/12 kW single-phase controllers with quick-connect AC plugs, sold 4 March to 18 November 2025, may overheat and cause fire. Check the exact model and serial against the ACCC notice. Affected owners should keep the system online for firmware updates and arrange the free replacement with their retailer or Sigenergy service partner. Affected products receive an extra two-year warranty. The recall concerns controllers, not BAT 10.0 modules alone.
SolarEdge
SolarEdge Home Battery 400V
Keep your existing solar
ProCan be added to a supported SolarEdge solar inverter.
ConYour existing SolarEdge inverter must be an approved model.
During a blackout
ProCan supply blackout power with the required SolarEdge backup equipment.
ConA battery alone is insufficient; your quote needs the correct backup equipment and wiring.
Storage now and later
Pro9.7 kWh available per unit; supported SolarEdge systems can add more batteries.
ConSome Australian three-phase inverters allow only one battery; confirm the approved count.
SolaX
SolaX TSYS-HS51
Keep your existing solar
ProCan keep a supported SolaX solar inverter designed to connect batteries.
ConYour exact inverter must support the quoted battery version.
During a blackout
CheckNo confirmed benefit.
ConConfirm blackout cover and the appliances supported by your exact SolaX solar inverter.
Storage now and later
Pro5.1 kWh advertised per block; more compatible blocks can be added.
ConAdvertised capacity exceeds energy you can use; check battery versions and expansion accessories.
sonnen
sonnen sonnenBatterie 12
Keep your existing solar
ProCan connect to a compatible existing solar inverter.
ConYour installer must confirm your exact solar equipment is supported.
During a blackout
ProCan keep chosen household circuits running during an outage.
ConIt does not automatically cover every appliance; confirm what your quote includes.
Storage now and later
Pro9.4 kWh available per block; expand to 28.2 kWh.
ConYour installer must confirm the allowed stack size and matching solar equipment.
sonnen
sonnen sonnenBatterie Evo
Keep your existing solar
ProCan be added alongside a compatible existing solar inverter.
ConCheck whether that inverter can recharge the battery during an outage.
During a blackout
ProBuilt-in backup can keep chosen essential circuits running.
ConCheck which appliances are covered and whether existing solar can recharge it during the outage.
Storage now and later
Pro10 kWh available in one unit.
ConConfirm whether future expansion is supported; do not assume this unit accepts extra battery blocks.
Sungrow
Sungrow SBH
Keep your existing solar
CheckNo confirmed benefit.
ConConfirm whether your existing solar inverter supports this exact battery.
During a blackout
CheckNo confirmed benefit.
ConMore storage does not guarantee more blackout power; confirm which appliances can run together.
Storage now and later
Pro5 kWh per block; more blocks can build up to 40 kWh in one stack.
ConYour inverter determines the minimum stack and maximum expansion size.
Sungrow
Sungrow SBR
Keep your existing solar
ProCan add storage to a supported Sungrow solar inverter.
ConYour exact inverter determines which battery sizes will work.
During a blackout
CheckNo confirmed benefit.
ConYour quote must include backup equipment and specify which appliances can run together.
Storage now and later
Pro3.2 kWh per block; add blocks within a supported stack.
ConA complete system needs several blocks; your inverter determines which stack sizes work.
Tesla
Tesla Powerwall 3
Keep your existing solar
ProCan be added alongside an existing solar inverter in a supported installation.
ConExisting solar included in backup is limited to 5 kW per Powerwall.
During a blackout
ProCan keep selected appliances running when installed with the required backup equipment.
ConYour home's wiring can restrict coverage; one unit does not back up all three electricity phases.
Storage now and later
Pro13.5 kWh available per unit; separate expansion batteries add more storage.
ConExpansion batteries only work with Powerwall 3; check the permitted number before ordering.
Products are listed alphabetically. Confirm the exact model, installation and warranty with your installer.
AlphaESS
