Project Overview
Client: Kerr Engineering
Project Size: 195.57kW DC Solar
Project Type: Rooftop Commercial Solar System
Location: Henderson, Western Australia
Westsun Energy was engaged to design and install a 195.57kW DC commercial solar system for Kerr Engineering.
The objective was to reduce electricity costs, improve long-term energy efficiency, and deliver strong financial returns through renewable energy integration for an energy-intensive engineering operation.
As a WA-based commercial solar EPC provider, Westsun Energy delivered a tailored solution designed to support consistent daytime energy demand while ensuring reliable long-term performance.
Challenges
→ High Energy Demand: Engineering operations require consistent and reliable power, making system design critical to offsetting daytime consumption.
→ System Optimisation: Maximising solar generation across available roof space while maintaining efficiency and performance.
→ Operational Continuity: Coordinating installation works to minimise disruption to ongoing site operations.
Solution
Westsun Energy engineered and installed a high-performance commercial solar system featuring:
→ 477 × REC Alpha Pure-R Solar Panels: Premium high-efficiency modules selected to maximise energy production across the available rooftop footprint.
→ 1 × Fronius Tauro Eco 100kW Inverter: Delivering reliable three-phase power conversion designed for commercial and industrial applications.
→ 1 × Fronius Tauro 50kW Inverter: Supporting system capacity with advanced monitoring and consistent performance.
System design focused on:
→ Maximising Energy Production: Delivering strong solar output to significantly offset grid electricity consumption.
→ Reliable Performance: Using proven commercial-grade components suited to Western Australian conditions.
→ Long-Term Efficiency: Ensuring consistent energy savings and operational reliability over time.
Results & Benefits
→ Solar System Size: 195.57kW DC
→ Solar Panels Installed: 477 × REC Alpha Pure-R modules
→ Inverter Capacity: 1 × Fronius Tauro Eco 100kW + 1 × Fronius Tauro 50kW
→ Rapid Financial Returns: Estimated 2–3 year discounted payback period
→ Long-Term ROI: Estimated 1183% return on investment over 25 years
→ Energy Cost Reduction: Significant reduction in electricity costs for engineering operations
→ Sustainability Impact: Reduced carbon emissions while supporting long-term energy strategy
Conclusion
The Kerr Engineering project demonstrates how a well-designed commercial solar system can deliver substantial cost savings and long-term energy efficiency for engineering and manufacturing businesses.
By installing a 195.57kW rooftop system, Westsun Energy provided a solution that supports reliable performance, strong financial returns, and improved sustainability outcomes.
This project highlights Westsun Energy’s capability in delivering commercial solar systems across Western Australia, engineered for performance, reliability, and long-term value.
For more information on how Westsun Energy, Perth’s best commercial solar installer, can assist with commercial solar solutions, contact us today.
