
Project Overview
Client: Hofmann Engineering
Project Size: 1.3MW DC Solar
Project Type: Large-Scale Rooftop Commercial Solar System
Location: Bassendean, Western Australia
Westsun Energy was engaged to design and install a 1,327.5kW DC commercial solar system for Hofmann Engineering.
The objective was to significantly reduce electricity costs, improve long-term energy certainty, and deliver strong financial returns through renewable energy integration for a large-scale industrial facility.
As a WA-based commercial solar EPC provider, Westsun Energy delivered a tailored solution designed to support the high energy demands of heavy engineering and manufacturing operations while providing reliable long-term performance.
Challenges
→ Large-Scale System Design: Designing and installing a multi-megawatt rooftop system required careful planning to maximise roof space while maintaining structural and electrical compliance.
→ Industrial Energy Demand: Ensuring solar generation aligned with the facility’s substantial daytime energy consumption.
→ Complex Installation Environment: Coordinating installation works safely across a large industrial site while maintaining operational continuity.
Solution
Westsun Energy engineered and installed a high-performance commercial solar system featuring:
→ 2,250 × 590W Canadian Solar Panels: High-efficiency modules selected to maximise energy production across the available rooftop footprint.
→ 10 × Fronius Tauro Eco Inverters: Delivering reliable three-phase power conversion designed for large-scale commercial and industrial solar systems.
→ Clenergy PV-ezRack SolarRoof Mounting System: A robust mounting solution engineered for durability and long-term structural integrity.
System design focused on:
→ Maximising Energy Production: Delivering large-scale solar generation to significantly offset grid electricity consumption.
→ Industrial-Grade Reliability: Ensuring the system performs consistently under demanding operating conditions.
→ Professional Installation & Compliance: Built to meet Australian standards and long-term operational reliability.
Results & Benefits
→ Solar System Size: 1,327.5kW DC
→ Estimated ROI over 25 Years: 1,520%
→ Discounted Payback Period: Approximately 2–3 Years
→ Energy Cost Reduction: Significant reduction in electricity costs for energy-intensive manufacturing operations.
→ Sustainability Impact: Large-scale reduction in carbon emissions while supporting Hofmann Engineering’s long-term energy strategy.
Conclusion
The Hofmann Engineering project demonstrates how large-scale commercial solar systems can deliver substantial financial returns while supporting the energy requirements of heavy industry.
By installing a 1.3MW rooftop solar system, Westsun Energy provided a solution that improves energy certainty, delivers a rapid payback period, and supports long-term operational sustainability.
This installation highlights Westsun Energy’s expertise in delivering large-scale commercial and industrial solar projects 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.
























