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Case Study: 35.7kW Solar + 40kWh Battery Installation at Lancelin Primary School

Client: Lancelin Primary School
Project Size: 35.7kW DC Solar + 40kWh Battery Storage
Project Type: Commercial Solar & Battery System
Location: Lancelin, Western Australia

 

Project Overview

Westsun Energy was engaged to design and install a 35.7kW DC solar system paired with 40kWh of battery storage at Lancelin Primary School.

The objective of the project was to reduce the school’s reliance on grid electricity while providing a renewable energy solution that supports long-term energy cost savings and sustainability goals.

As a WA-based commercial solar EPC provider, Westsun Energy delivered an integrated solar and battery solution designed for reliable energy production, efficient storage, and long-term performance in Western Australian conditions.

Challenges

→ Energy Cost Management: Schools operate with consistent daytime energy demand, making it important to design a system that maximises solar generation during operational hours.

→ System Integration: Ensuring the solar and battery system integrated seamlessly with the school’s existing electrical infrastructure.

→ Long-Term Value: Delivering a system that would provide strong financial returns while supporting sustainability initiatives.

Solution

Westsun Energy engineered and installed a solar and battery system featuring:

→ 70 × 510W Canadian Solar Panels: High-efficiency solar modules selected to maximise energy generation across the available installation area.

→ 1 × Sungrow Inverter: Delivering reliable power conversion and system monitoring.

→ 1 × Sungrow 40kWh Battery System: Allowing excess solar generation to be stored and used when required, improving overall energy efficiency.

System design focused on:

→ Maximising Daytime Energy Production: Aligning solar generation with the school’s daytime operational energy usage.

→ Battery Energy Utilisation: Capturing excess solar production for later use to improve energy efficiency.

→ Reliable System Performance: Using proven commercial solar and battery technology suited to WA conditions.

Results & Benefits

→ Solar System Size: 35.7kW DC
→ Battery Storage Capacity: 40kWh
→ Solar Panels Installed: 70 × 510W Canadian Solar modules
→ Inverter: 1 × Sungrow inverter

→ Rapid Financial Returns: Estimated 3–4 year discounted payback period.

→ Long-Term ROI: Estimated 1154% return on investment over 25 years.

→ Sustainability Impact: Supporting the school’s transition to renewable energy while reducing electricity costs.

Conclusion

The solar and battery installation at Lancelin Primary School demonstrates how educational facilities can integrate renewable energy to improve energy efficiency and reduce operational costs.

By installing a 35.7kW solar system with 40kWh of battery storage, Westsun Energy delivered a renewable energy solution designed for long-term performance, financial returns, and sustainability.

This project highlights Westsun Energy’s capability in delivering solar and battery solutions across Western Australia, engineered for reliability, efficiency, 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.

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