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Overview

  • Services BESS installation
  • Size 224.49kW
  • Type Roof top
  • Industry Government

224.49 kWp/ 201.04 kVA/ Solar PV ROOFTOP & BATTERY ENERGY STORAGE SYSTEM

Perdaman Advanced Energy (PAE) has successfully partnered with the Public Transport Authority (PTA) to deliver a series of sites solar photovoltaic (PV) and battery energy storage system (BESS) installations across multiple bus stations in Western Australia. These projects form a key part of PTA’s sustainability and carbon reduction strategy, integrating clean energy solutions into critical public transport infrastructure.

Between 2020 and 2022, PAE designed, supplied, and commissioned 224.49 kWp of solar PV capacity and 151kWh of battery storage across ten major sites. Perdaman Advanced Energy (PAE) was awarded a single tender encompassing six sites, James Street Layover, Morley Bus Station, Booragoon Bus Station, Henley Brook Bus Station, Kwinana Bus Station, and Causeway Bus Station, demonstrating its proven capability in delivering large, multisite solar PV and energy storage projects to consistently high standards of quality, safety, and performance. The Joondalup Bus Station project was delivered under a separate tender, while Optus Stadium and Mirrabooka Bus Station were awarded together under a single tender package. Each system was tailored to site-specific operational and structural requirements, incorporating advanced inverter and storage technologies such as Fronius Symo inverters, Tesla Powerwall 2 AC, and BYD battery systems.

Collectively, these installations generate over 376,410 kWh of renewable energy annually, offsetting approximately 309,596 tonnes of CO₂ emissions, equivalent to the carbon absorption of more than 14, 260 mature trees every year. Each installation was executed under strict safety and operational protocols, with works carefully scheduled around active bus operations to ensure minimal disruption. Through these initiatives, PAE has demonstrated strong technical expertise, meticulous project management, and an ongoing commitment to supporting the PTA’s environmental leadership and Western Australia’s transition toward a sustainable, low-carbon future. Following are the technical specification across the 10 sites:

  • Inverters – Fronius Symo inverters were predominantly utilised across all projects, ensuring reliability and consistency in performance. Morley Bus Station: Fronius Eco inverter system installed and Leederville Bus Station: Fronius Symo GEN24 Plus inverter deployed for hybrid operation with battery integration.
  • PV Modules – A range of high-efficiency modules were used, including Canadian Solar, Q Cells Q.Max, and Jinko Solar, with module ratings varying between 350 W and 440 W. as per the technology available in 2020-2022. All PV arrays were tilt-mounted using Clean Energy Council (CEC)–approved racking systems, designed for structural compliance and optimal energy yield across diverse site conditions.
  • Roofing – Installations were undertaken across ten sites featuring a variety of roof profiles — corrugated, trapezoidal, and Klip-Lok — with each system design meticulously adapted to suit the respective roof type, ensuring waterproofing integrity, structural stability, and compliance with load-bearing requirements.
  • Battery Energy Storage Systems (BESS) – Tesla Powerwall 2 AC (14 kWh) units were primarily used across sites along with Tesla Gateway, providing seamless backup. At Leederville Bus Station, a BYD battery solution was implemented with the Fronius Symo GEN24 inverter, AC Infrastructure All projects leveraged the existing AC distribution infrastructure, which was assessed and confirmed to be fit-for-purpose and suitable for integration with the new generation systems. Any minor upgrades required were incorporated during commissioning to ensure compliance and reliability.
  • Exporting and Grid Protection – All sites are LV-metered and compliant with Western Power’s embedded generation standards. With an except at Joondalup Bus Station, a Woodward Protection Relay was installed to provide advanced grid protection and meet specific network compliance requirements.
  • Monitoring and Communication – Each system includes standard Fronius Solar. Web monitoring via a Wi-Fi connection, allowing real-time performance tracking and fault diagnostics. Monitoring communication is enabled through a dedicated router and SIM card, with 12 months of data connectivity included as part of project delivery for all sites.
  • Roof Access and lifting – Safe access for elevated works was achieved using scissor lifts and certified lifting equipment, ensuring compliance with workplace safety standards. At Joondalup Bus Station, craning operations were undertaken for rooftop material handling due to restricted access and elevation constraints.
  • Shutdown and Installations – All installations were executed during normal business hours, with no requirement for out-of-hours work. An exception applies to Causeway Bus Station, where under-road cabling and concrete works are scheduled on a Sunday, minimising disruption to weekday traffic.

1. Joondalup Bus Station

99.9 kWp/ 100 kVA SOLAR PV ROOFTOP SYSTEM

Perdaman Advanced Energy (PAE) was awarded the contract by the Public Transport Authority for the design, supply, and installation of a 99.9 kWp / 100 kVA solar PV system at Joondalup Bus Station, successfully commissioned in February 2022.

  • System Size – 99.9 kW/ 100 kVA
  • Panels Used – Canadian Solar (370 W) CSI-CS3L-370MS/35
  • Inverter Used – 5 X Fronius Symo (20kVA) 20.0-3-M

The system comprises 270 premium Canadian Solar 370 W panels, seamlessly integrated with five Fronius Symo 20 kVA inverters, ensuring high reliability, efficiency, and long- term performance. The system incorporates a Woodward Protection Relay to provide comprehensive grid protection and safety compliance in accordance with Western Power’s embedded generation standards.

Due to the station’s complex roof access requirements, craning operations were undertaken to safely lift materials onto the roof. These activities were meticulously planned and executed during non-operational hours to ensure full compliance with safety protocols and to avoid disruption to bus operations and the adjoining Administration Building. The 99.9 kWp solar PV system is designed to generate approximately 173,700 kWh of clean, renewable electricity annually. This generation offsets around 168,300 kg of CO₂ emissions each year—equivalent to the carbon absorption capacity of approximately 7,755 mature trees. The project demonstrates PAE’s strong technical capability and commitment to delivering safe, sustainable, and high-performance renewable energy systems for critical public infrastructure across Western Australia.

2. Optus Stadium Bus Layover

9.99 kWp/ 8.2 kVA / 14 kWh SOLAR PV ROOFTOP & BATTERY ENERGY STORAGE SYSTEM

Perdaman Advanced Energy (PAE) was awarded the contract by the Public Transport Authority for the design, supply, and installation of a 9.99 kWp / 8.2 kVA solar PV system integrated with a 14 kWh Battery Energy Storage System (BESS) at the Optus Stadium Bus Layover, successfully commissioned in April 2021.

  • System Size – 9.99 kWp / 8.2 kVA/ 14 kWh
  • Panels Used – 27 X Canadian Solar (370 W) CS3L-370MS
  • Inverter Used – Fronius Symo 8.2-3-M (8.2 kVA)
  • Battery Used – 1X Tesla Powerwall 2 AC (14 kWh)

The system comprises 27 premium Canadian Solar 370 W panels, seamlessly integrated with a Fronius Symo 8.2 kVA inverter, ensuring exceptional reliability, efficiency, and long- term performance. The inverter is coupled with a Tesla Powerwall 2 AC (14 kWh) battery and Tesla Gateway, providing intelligent energy management, grid interaction, and total load backup capability. The installation was carried out on a Klip-Lok roof using non- penetrating mounts, which securely clamp onto the raised seams of the roof without drilling—maintaining the roof’s structural integrity, watertightness, and warranty. The panels are installed on Clenergy PV-ezRack Commercial Tilt Frames, optimally angled to maximise solar exposure and enhance energy generation.

The 9.99 kWp solar PV system is designed to generate approximately 14,500 kWh of clean, renewable electricity annually, offsetting around 11,600 kg of CO₂ emissions— equivalent to the carbon absorption capacity of approximately 535 mature trees each year. This project showcases PAE’s capability in delivering technically advanced, roof- sensitive, and sustainable solar energy systems for critical public infrastructure across Western Australia.

3. James Street Layover

9.1 kWp/ 8.2 kVA/ 14 kWh SOLAR PV ROOFTOP & BATTERY ENERGY STORAGE SYSTEM

Perdaman Advanced Energy (PAE) was awarded the contract by the Public Transport Authority for the design, supply, and installation of a 9.1 kWp / 8.2 kVA solar PV system integrated with a 14 kWh Battery Energy Storage System (BESS) at James Street Layover, successfully commissioned in October 2021.

  • System Size – 9.1 kWp / 8.2 kVA/ 14 kWh
  • Panels Used – 26 X ǫ Cells ǫ MAXX-G2 Modules (350 W)
  • Inverter Used – Fronius Symo 8.2-3-M (8.2 kVA)
  • Battery Used – 1X Tesla Powerwall 2 AC (14 kWh)

The system comprises 26 premium Canadian Solar 370 W panels, seamlessly integrated with a Fronius Symo 8.2 kVA inverter, ensuring maximum reliability, efficiency, and long- term performance. The inverter is coupled with a Tesla Powerwall 2 AC (14 kWh) battery and Tesla Gateway, providing intelligent energy management, grid interaction, and full load backup capability to ensure operational continuity for essential loads.

The 9.1 kWp solar PV system is designed to generate approximately 14,105 kWh of clean, renewable electricity annually. This generation offsets around 11,284 kg of CO₂ emissions each year equivalent to the carbon absorption capacity of approximately 519 mature trees. The project demonstrates PAE’s continued expertise in delivering high-efficiency hybrid solar and battery solutions.

4. Leederville Bus Station

Perdaman Advanced Energy (PAE) was awarded the contract by the Public Transport Authority for the design, supply, and installation of a 7.5 kWp / 5 kVA solar PV system integrated with an 11 kWh Battery Energy Storage System (BESS) at Leederville Bus Station, successfully commissioned in May 2022.

  • System Size – 7.5 kW / 5 kVA/ 11 kWh
  • Panels Used – 17 X Jink Solar (440 W) JKM440M-6TL4
  • Inverter Used – Fronius Gen24 plus (5 kW)
  • Battery Used – 4 X BYD (2.76 kWh) HVM 11 kWh

The system comprises 17 Jinko Solar 440 W panels, seamlessly integrated with a Fronius Gen24 Plus 5 kVA inverter, delivering exceptional reliability, efficiency, and long-term performance. The inverter is coupled with four BYD batteries, each with a capacity of 2.76 kWh, providing a total usable storage of 11 kWh. The system incorporates export control functionality, ensuring that the energy exported to the grid complies with Western Power’s 1.5 kW export limit.

The 7.5 kWp solar PV system is designed to generate approximately 13,705 kWh of clean, renewable energy annually. This offsets around 10,964 kg of CO₂ emissions each year, equivalent to the carbon absorption capacity of approximately 504 mature trees. The project underscores PAE’s capability in integrating advanced inverter and battery technologies to deliver reliable, sustainable, and grid-compliant energy solutions.

5. Morley Bus Station

29.4 kWp/ 25 kVA/ 14 kWh SOLAR PV ROOFTOP & BATTERY ENERGY STORAGE SYSTEM

Perdaman Advanced Energy (PAE) was awarded the contract by the Public Transport Authority for the design, supply, and installation of a 29.4 kWp / 25 kVA solar PV system integrated with a 14 kWh Battery Energy Storage System (BESS) at Morley Bus Station, successfully commissioned in November 2020.

  • System Size – 29.4 kWp/ 25 kVA/ 14 kWh
  • Panels Used – 84 X ǫ Cells (350 W) ǫ Maxx – G2 Modules
  • Inverter Used – 1 X Fronius Eco (25 kVA)
  • Battery Used – Tesla Powerwall 2 AC (14 kWh)

The system comprises 84 ǫ Cells ǫ.Maxx 350 W panels, seamlessly integrated with a Fronius Eco 25 kVA inverter, ensuring superior reliability, efficiency, and long-term performance. The inverter is coupled with a Tesla Powerwall 2 AC (14 kWh) battery and Tesla Gateway, which provides advanced energy management, automatic backup switching, and seamless transition between grid and battery power during outages. The Tesla Gateway also enables intelligent control and monitoring, ensuring optimal utilization of stored energy while maintaining system safety and stability.

The 29.4 kWp solar PV system is designed to generate approximately 46,776 kWh of clean, renewable electricity annually. This generation offsets around 31,000 kg of CO₂ emissions each year, equivalent to the carbon absorption capacity of approximately 1,428 mature trees. The project demonstrates PAE’s capability in delivering high-performance hybrid energy systems that support the Public Transport Authority’s sustainability goals and contribute to Western Australia’s transition towards a cleaner, more resilient energy future.

6. Booragoon Bus Station

25.9 kWp/ 20 kVA / 28 kWh SOLAR PV ROOFTOP & BATTERY ENERGY STORAGE SYSTEM

Perdaman Advanced Energy (PAE) was awarded the contract by the Public Transport Authority for the design, supply, and installation of a 25.4 kWp / 20 kVA solar PV system integrated with two 14 kWh Battery Energy Storage Systems (BESS) at Booragoon Bus Station, successfully commissioned in October 2020.

  • System Size – 25.9 kWp/ 20 kVA / 28 kWh
  • Panels Used – 74 ǫ Cells ǫ MAXX – G2 Modules (350 W)
  • Inverter Used – 1 X Fronius Symo 20.0.3-M (20 kVA)
  • Battery Used – 2 X Tesla Powerwall 2 AC (14 kWh each)

The system comprises 74 ǫ Cells ǫ.Maxx 350 W panels, seamlessly integrated with a Fronius Symo 20 kVA inverter, ensuring superior reliability, efficiency, and long-term performance. The inverter is connected to two Tesla Powerwall 2 AC units, providing a total battery storage capacity of 28 kWh and enabling backup power capability. The installation includes a D-Link router for system communication and monitoring along with the the Fronius Solar.web platform, allowing real-time performance tracking and remote diagnostics. The PV system is mounted on Clenergy adjustable tilt-leg roof structures, designed to optimize solar exposure and enhance overall energy generation.

The 25.9 kWp solar PV system is designed to generate approximately 42,791 kWh of clean, renewable electricity annually. This offsets around 27,800 kg of CO₂ emissions each year. The project highlights PAE’s commitment to delivering reliable and sustainable energy solutions that align with the Public Transport Authority’s environmental and carbon reduction initiatives across Western Australia.

7. Henley Brook Bus St

14.7 kWp/ 12.5 kVA / 14 kWh SOLAR PV ROOFTOP & BATTERY ENERGY STORAGE SYSTEM

Perdaman Advanced Energy (PAE) was awarded the contract by the Public Transport Authority for the design, supply, and installation of a 14.7 kWp / 12.5 kVA solar PV system integrated with a 14 kWh Battery Energy Storage System (BESS) at Henley Brook Bus Station, successfully commissioned in November 2020.

  • System Size – 14.7 kWp/ 12.5 kVA/14 kWh
  • Panels Used – 42 X ǫ Cells ǫ. MAXX – G2 Modules (350 W)
  • Inverter Used – 1 X Fronius Symo (12.5 kW)
  • Battery Used – 1 X Tesla Powerwall 2 AC (14 kWh)

The system comprises 42 ǫ Cells ǫ.Maxx 350 W panels, seamlessly integrated with a Fronius Symo 12.5 kVA inverter, ensuring high efficiency, reliability, and long-term performance. The inverter is coupled with a Tesla Powerwall 2 AC (14 kWh) battery and Tesla Gateway, providing intelligent energy management, grid interaction, and backup capability. The installation incorporates Clenergy adjustable tilt-leg roof mounting structures, enabling optimal panel orientation for maximum energy yield and improved system performance.

The 14.7 kWp solar PV system is designed to generate approximately 23,989 kWh of clean, renewable electricity annually. This generation offsets around 15,000 kg of CO₂ emissions each year, equivalent to the carbon absorption capacity of approximately 691 mature trees. The project demonstrates PAE’s technical capability and commitment to delivering sustainable, high-performance energy solutions that contribute to Western Australia’s clean energy transition and the Public Transport Authority’s environmental objectives.

8. Kwinana Bus Station

14.7 kWp/ 12.5 kVA/ 14 kWh SOLAR PV ROOFTOP & BATTERY ENERGY STORAGE SYSTEM

Perdaman Advanced Energy (PAE) was awarded the contract by the Public Transport Authority for the design, supply, and installation of a 14.7 kWp / 12.5 kVA solar PV system integrated with a 14 kWh Battery Energy Storage System (BESS) at Kwinana Bus Station, successfully commissioned in November 2020.

  • System Size – 14.7 kW/12.5 kVA/14 kWh
  • Panels Used – 42 X ǫ Cells (350 W) ǫ. MAXX-G2 Modules
  • Inverter Used – 1 X Fronius Symo 12.5-3-M (12.5 kVA)
  • Battery Used – 1 X Tesla Powerwall 2 AC (14 kWh)

The system comprises 42 ǫ Cells ǫ.Maxx 350 W panels, seamlessly integrated with a Fronius Symo 12.5 kVA inverter, ensuring maximum reliability, efficiency, and long-term performance. The inverter is coupled with a Tesla Powerwall 2 AC (14 kWh) battery and Tesla Gateway, providing intelligent energy management, grid interaction, and backup capability. The installation utilizes Clenergy adjustable tilt-leg roof mounting structures, optimizing panel orientation for enhanced solar capture and system performance.

The 14.7 kWp solar PV system is designed to generate approximately 25,500 kWh of clean, renewable electricity annually. This energy generation offsets around 17,000 kg of CO₂ emissions each year, equivalent to the carbon absorption of approximately 780 mature trees, contributing significantly to Western Australia’s sustainable energy transition and the Public Transport Authority’s environmental commitments.

9. Causeway Bus Station

13.3 kWp/ 10 kVA/ 14 kWh SOLAR PV ROOFTOP & BATTERY ENERGY STORAGE SYSTEM

Perdaman Advanced Energy (PAE) was awarded the contract by the Public Transport Authority for the design, supply, and installation of a 13.3 kWp / 10 kVA solar PV system integrated with a 14 kWh Battery Energy Storage System (BESS) at Causeway Bus Station, successfully commissioned in December 2020.

  • System Size – 13.3 kWp / 10 kVA / 14 kWh
  • Panels Used – 38 X ǫ Cells (350 W) ǫ. MAXX – G2 Modules
  • Inverter Used – 1 X Fronius Symo (10 kVA) 10.0-3-M
  • Battery Used – 1 X Tesla Powerwall 2 AC Battery (14 kWh)

The system comprises 38 ǫ Cells ǫ.Maxx 350 W panels, seamlessly integrated with a Fronius Symo 10 kVA inverter, ensuring maximum reliability, efficiency, and long-term performance. The inverter is paired with a Tesla Powerwall 2 AC (14 kWh) battery and Tesla Gateway, enabling intelligent energy management, grid interaction, and backup functionality. As part of the installation works, PAE carried out AC underground cabling to connect the system to the Site Main Switchboard (SMSB) and performed all associated concrete works to ensure structural stability and compliance. To minimize operational impact, the system shutdown and connection works were strategically scheduled on a Sunday evening, ensuring no disruption to daily bus operations.

The 13.3 kWp solar PV system is designed to generate approximately 21,344 kWh of clean, renewable electricity annually, offsetting around 16,648 kg of CO₂ emission, equivalent to the carbon absorption of approximately 764 mature trees each year. The project reflects PAE’s commitment to delivering high-quality, sustainable energy solutions that support Western Australia’s transition toward a cleaner and more resilient energy future.

10. Mirrabooka Bus Station

28 kWh BATTERY ENERGY STORAGE SYSTEM

Perdaman Advanced Energy (PAE) was awarded the contract by the Public Transport Authority for the design, supply, and installation of a 28 kWh Battery Energy Storage System (BESS) integrated with the existing solar PV system at Kwinana Bus Station, successfully commissioned in March 2021.

  • System Size – 28 kWh
  • Battery Used – 2 X Tesla Powerwall 2 AC (14 kWh each)

The system comprises two Tesla Powerwall 2 AC batteries, each with a capacity of 14 kWh, providing a total usable capacity of 28 kWh. The batteries are connected through a Tesla Gateway, which enables intelligent energy management, real-time monitoring, and seamless interaction with the existing Fronius inverter.

The configuration allows the bus station not only to generate solar energy but also to store and supply power during periods of low solar generation or high demand, thereby enhancing energy reliability, reducing grid dependency, and improving overall system efficiency.