Parkerville solar and battery case study
Parkerville Solar Battery Installation with Whole-Home Backup
Australis Solar completed this Parkerville solar battery installation in the Perth Hills using 25.48 kW of AIKO solar panels, a 10 kW single-phase Sigenergy SigenStor inverter, 40 kWh of battery storage and a Sigenergy Gateway for the project’s published whole-home backup configuration. The homeowner wanted a very large solar and storage system with backup as a clear priority.
Australis Solar is a Perth-based, WA-owned solar company operating since 2008. The design coordinated the large solar array with single-phase inverter capacity, DC string limits, battery storage, backup switching and switchboard protection upgrades rather than relying on a standard package.
- 25.48 kW of AIKO solar using 52 × 490 W panels
- 10 kW single-phase Sigenergy SigenStor inverter
- 40 kWh of Sigenergy battery storage
- Sigenergy Gateway whole-home backup configuration
- 21 Type A RCD/RCBO upgrades
Confirmed project specifications
Parkerville project snapshot
The specifications below are taken from the published Australis Solar project information. Annual production, energy offset and bill savings are modelled estimates for this installation, not measured results.
Designed around the property
Customer objective and design considerations
The customer wanted a large solar and battery system with backup as a significant part of the design. Achieving that outcome required the solar array, inverter, storage, backup switching and switchboard protection to be considered together.
Large solar and storage requirement
The published project brief records that the homeowner wanted the system to be as large as practical, with substantial battery storage and outage support.
That meant evaluating more than panel quantity. Solar capacity, inverter output, storage capacity and backup capability all needed to work as a coordinated system.
Single-phase inverter configuration
The property is single phase. The published project uses a 10 kW single-phase SigenStor inverter and identifies 10 kW as the practical inverter ceiling for this particular design.
The 10 kW inverter rating and the 25.48 kW solar-array rating describe different parts of the system and should not be treated as interchangeable capacities.
Large DC solar array
Fifty-two AIKO 490 W panels create 25.48 kW of nameplate solar capacity.
The published project information states that the panel strings were designed within the Sigenergy system's DC voltage limits. Exact string voltages and MPPT allocation are not published and are therefore not assumed here.
Backup and switchboard integration
Backup was a defined requirement, so the system included the Sigenergy Gateway and associated switchboard work rather than treating the battery as a storage-only addition.
The confirmed electrical scope included 21 Type A RCD/RCBO upgrades to prepare the switchboard for the completed inverter, battery and backup installation.
One coordinated energy system
System design and installed components
Each component performs a different job. Solar capacity, inverter power, stored battery energy and blackout support should be assessed separately before considering how they work together.
52 × AIKO Neostar 3P 490 W panels
The AIKO array provides 25.48 kW of installed nameplate solar capacity across 52 panels.
The project required a large DC array to be coordinated with the available single-phase inverter architecture and its electrical input limits.
Compare solar panels for Perth homes10 kW SigenStor single-phase inverter
The SigenStor inverter manages AC power conversion and coordinates operation between the solar array, battery and wider Sigenergy platform.
Its 10 kW rating describes inverter AC power. It does not mean the property has only 10 kW of solar panels or 10 kWh of battery storage.
Explore Sigenergy systems in Perth40 kWh Sigenergy battery storage
The completed project is published with 40 kWh of Sigenergy battery storage.
Battery capacity describes stored energy. Actual backup duration and the household loads that can operate together depend on inverter output, battery power, state of charge, available solar and the final commissioned backup configuration.
Compare solar battery optionsSigenergy Gateway and switchboard upgrades
The Sigenergy Gateway provides the switching and control required for the project's published whole-home backup configuration.
The installation also included 21 Type A RCD/RCBO upgrades as part of the confirmed electrical scope.
Learn about Sigenergy battery and backup designDesign constraints resolved together
Problems and Australis Solar solutions
The value of this project was not simply fitting 52 panels and a large battery. The system had to reconcile a large DC solar array with a single-phase inverter, backup requirements and significant switchboard protection work.
Large solar and storage on a single-phase supply
Challenge
The customer wanted a very large solar and battery system, while the property used a single-phase electrical supply.
Australis Solar assessment
The inverter configuration, available DC capacity, solar-array size and storage requirements had to be assessed together rather than simply selecting the largest individual components.
Australis Solar solution
The published design combines 25.48 kW of AIKO solar with a 10 kW single-phase SigenStor inverter and 40 kWh of Sigenergy storage.
Coordinating whole-home backup and electrical protection
Challenge
Backup was a project requirement, which meant battery storage alone was not sufficient.
Australis Solar assessment
Backup switching, available inverter power, battery capacity and the property's electrical protection needed to form part of the same design.
Australis Solar solution
A Sigenergy Gateway was incorporated for the project's published whole-home backup configuration together with the required switchboard work.
Configuring the large solar array within DC limits
Challenge
Fifty-two 490 W panels create a substantial DC array that must remain within the electrical limits of the selected inverter platform.
Australis Solar assessment
Panel string configuration and DC voltage limits had to be considered before finalising the large array.
Australis Solar solution
The published project states that the panel strings were configured within the Sigenergy system's DC voltage limits. Exact project string voltages are not published and are not inferred here.
WA connection requirements
New inverter systems and the addition of battery generation equipment can require an Embedded Generation Connection application with Western Power. The approved Parkerville export setting and any project-specific connection conditions are not published, so this case study does not assume them.
Read Western Power's inverter-system connection guidanceInstalled by Australis Solar
Parkerville installation gallery
Genuine Australis Solar project photography showing the externally installed Sigenergy battery system and sections of the 25.48 kW AIKO solar array across the Parkerville property's roof.
Parkerville project questions
Solar, battery and backup FAQs
Why does this Parkerville system have 25.48 kW of panels with a 10 kW inverter?
Panel nameplate capacity and inverter AC output are different ratings. The published Parkerville design uses 52 × AIKO 490 W panels, totalling 25.48 kW, with a 10 kW single-phase SigenStor inverter. The inverter limits AC output, while the larger DC array was designed within the system's stated input and string limits. Actual clipping and energy yield depend on irradiance, orientation, temperature and the final electrical design.
Why was 40 kWh of battery storage installed?
The published project brief says the homeowner wanted a very large system with substantial storage and backup capability. Australis Solar installed 40 kWh of Sigenergy battery storage. The current case-study source does not include the customer's interval data or full Synergy bill, so this page does not claim that 40 kWh is the correct battery size for every Parkerville home.
Does whole-home backup mean every appliance can run during a blackout?
No. The Sigenergy Gateway was installed for the project's published whole-home backup configuration. Whole-home backup does not mean every appliance can run without limits. Available backup depends on inverter output, battery power and state of charge, solar production, appliance starting currents and the commissioned electrical configuration.
Why were 21 Type A RCD/RCBOs upgraded?
The published scope records 21 Type A RCD/RCBO upgrades as part of preparing the switchboard for the inverter, battery and backup system. The exact protection work required on another property depends on its existing switchboard and final design.
Is the Parkerville Sigenergy system single phase?
Yes. The published project uses a 10 kW single-phase SigenStor inverter. The existing page states that 10 kW was the practical inverter ceiling for this particular design. That should not be treated as a universal network rule for every single-phase property; connection requirements must be assessed for the specific site.
Can a similar 25.48 kW solar and 40 kWh battery system be installed at another Perth Hills home?
Potentially, but the same capacity should not be copied without assessment. Australis Solar would review the Synergy bill, usage, roof, shading, electrical supply, switchboard, battery location, backup priorities and applicable Western Power connection requirements before recommending a configuration.
Request a property-specific design
Planning a solar battery installation in Parkerville or the Perth Hills?
Send Australis Solar your latest Synergy bill and details of the property. Our Perth team can assess electricity usage, daytime and evening demand, roof area, shading, electrical supply, switchboard, battery location, backup requirements and future EV plans before recommending a suitable system.
Your proposal should identify the proposed solar capacity, inverter, battery storage, backup scope, electrical work and applicable connection requirements rather than copying the configuration from another home.
