Parkerville Solar and Battery Installation: 25.48kW AIKO panels, Sigenergy system for energy security in the Perth Hills with Whole Home backup and 40kWh battery storage.

Project outcome: A high-output, high-storage system designed for maximum self-sufficiency and reliable backup in Parkerville, where outages and distance from services make energy security a priority.

Challenges Faced in Solar Installation for a Parkerville Resident

Single-phase supply cap (inverter sizing)

This home is single-phase, so 10kW was the practical ceiling for the inverter capacity. The client wanted “as large as possible”, but the design had to stay within network and equipment limits while still delivering meaningful self-sufficiency.

Backup power requirements drove switchboard compliance upgrades

Backup was essential for this site, which meant installing the correct hardware (Sigenergy Gateway) and upgrading protective devices. To meet current compliance requirements for modern inverters, batteries, and backup switching, the switchboard needed an extensive refresh, including 21 x Type A RCD/RCBO upgrades.

High DC design discipline (stringing within voltage limits)

With a large PV array on a single-phase Sigenergy platform, we maximised each string safely within the system’s DC voltage limits, so the homeowner gets strong production without pushing the design outside specification.

Solution Overview for Parkerville Solar and Battery Installation

Future-proofed, energy-secure architecture

Australis Solar delivered a 25.48kW PV system paired with 40kWh of Sigenergy storage and a Gateway to support whole-home backup capability (when configured with the correct protected circuits).

Safety and standards-led installation

The switchboard was upgraded with Type A protection to align with current inverter and battery requirements, and the system was commissioned to meet relevant grid-connection and inverter standards such as AS/NZS4777.2.

Annual Output, Energy Offset, and Monthly Savings

• Annual Output: 28,319kWh

• Energy Offset: 96%

Why this system makes sense in the Perth Hills

For hills properties, the best return is often a blend of:

• High solar generation to cover daytime loads year-round

• Large storage (40kWh here) to shift energy into evenings, early mornings, and outage windows

• Backup-ready hardware (Gateway) plus compliant switchboard protection so the system performs safely when it matters

Want a similar outcome?

Compare solar batteries for Perth homes and get a design that’s sized to your supply (single-phase vs three-phase), your roof, and your outage risk.

Estimated Annual Savings: $6,380

Australis Solar designs and installs high-performance solar and battery systems across Perth, with a focus on energy security, compliance, and long-term value. For projects like this Parkerville installation, we combine premium hardware (AIKO panels and the Sigenergy ecosystem) with in-house engineering and accredited electricians to deliver a system that targets high self-sufficiency, reliable backup (when specified with the correct Gateway hardware), and strong annual production. Every install is tailored to the home’s supply type, roof constraints, and Western Power connection requirements, so clients get predictable bill reduction and a cleaner, more independent energy setup.