Three-phase inverters play a crucial role in converting the DC power produced by solar arrays or battery storage systems into usable AC power for industrial and commercial applications in Australia. As the country continues to embrace solar power, the demand for reliable and efficient three-phase inverters is increasing.
Power output, efficiency, and compatibility with other system components are important factors to consider when selecting a three-phase inverter. The power output of the inverter should be compatible with the size of the solar array or battery storage system, and the efficiency of the inverter affects the overall performance and energy savings of the system.
Three-phase inverters have various applications in industrial and commercial settings, including powering large-scale equipment, powering air conditioning systems, and supplying power to manufacturing facilities. The inverter is also an essential component for connecting a solar power system to the electrical grid.
This article will provide an overview of three-phase inverters, their applications, and considerations when selecting an inverter for a three-phase system in Australia.
Top 10 Three-Phase Inverters
In terms of Three-phase inverters, there are many popular brands available in Australia that vary in efficiency, durability, and affordability. Some of the most popular brands include Fronius, Goodwe, SMA, Growatt, Huawei, etc. These inverters are not in any specific order. All of the mentioned inverters are ranked alphabetically.
1. Fronius
Fronius is a well-known and respected brand in the Australian solar industry, renowned for producing high-quality and reliable inverters. Their Symo range of three-phase inverters is specifically designed for large-scale commercial and industrial solar installations.
With a maximum efficiency of up to 98.3%, Fronius Symo inverters can convert DC power from solar panels into AC power with minimal losses, maximizing the system’s power output.
The Fronius Symo inverters feature robust, weather-resistant enclosures and multiple protection mechanisms, including overvoltage and overcurrent protection, making them a safe and reliable solution for three-phase solar installations in Australia.
Key Features
- Fronius offers different power output options, from 3 kW to 27 kW, to suit a variety of solar installations.
- These are designed to be lightweight and compact, making them easy to install and transport.
- Users can remotely monitor and manage their solar system through the integrated web server on their inverters.
- In addition, the Symo range features advanced monitoring capabilities, with options for Ethernet, WLAN, and GPRS connectivity.
- Fronius inverters have a wide input voltage range, allowing them to be used with various solar panel configurations.
Technical Specification
| Model | SYMO 3.0-3-S |
| Power Output | 6 Kw |
| Temperature range | -25 - +60 °C |
| Maximum Efficiency | 98% |
| Cooling | Regulated air cooling |
| MPP Trackers | 1 |
| Communication | Fronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON) |
Pros
- Fronius is a well-known and reputable brand in the solar industry, so their products are often seen as high quality and reliable.
- Fronius inverters’ high efficiency means that users can maximize their solar panel output and enjoy greater savings on their energy expenses.
- The range of power output options available means these inverters can be used for various solar installations, from residential to commercial.
- The built-in web server makes it easy for users to monitor and manage their solar system remotely, which can be very convenient.
Cons
- Fronius inverters can be more expensive than other three-phase inverter options.
- Some users have reported issues with Fronius inverters failing prematurely, which can be frustrating and costly.
Awards & Certifications
- Red Dot Design Award.
- TÜV Rheinland Certification.
- Intersolar Award.
- CEC listing.
- ETL Listing.
2. Growatt
Growatt is a top-tier producer of solar inverters catered towards residential, commercial, and industrial purposes within Australia. Their assortment of three-phase inverters is engineered to deliver dependable power conversion and remarkable efficiency for sizable solar PV projects.
These inverters have advanced features like dual MPPT trackers, integrated DC switches, and intelligent monitoring. As a result, they are ideal for various applications, from small commercial setups to large utility-scale projects.
Moreover, Growatt’s inverters are built with weather-resistant enclosures and multiple protection mechanisms, including overvoltage, overcurrent, and short-circuit protection, ensuring the system’s safety and reliability.
Key Features
- Wide input voltage range.
- Multiple MPPTs for maximum energy yield.
- Built-in DC switch.
- IP65 protection for outdoor use.
- Compact and lightweight design for easy installation.
- User-friendly monitoring system.
- Compliance with international safety and grid regulations.
Technical Specification
| Model | Growatt 5000TL3-S |
| Max PV power | 6 Kw |
| Max DC Voltage | 1000V |
| Operating Temperature | -25 to +60 °C |
| Max Efficiency | 98% |
| Cooling | Natural |
| MPP Trackers | 2 |
| Warranty | 5 Years (Expandable up to 10 Years) |
Pros
- High efficiency and energy yield.
- Advanced monitoring and control features.
- Suitable for a wide range of solar PV systems.
- Robust and durable design.
- Competitive Pricing.
Cons
- Some users have reported issues with the firmware and software updates.
- Limited technical support in some regions.
- It may not be suitable for large commercial installations with high power requirements.
Awards & Certifications
- Top Brand PV Inverter by EuPD Research in 2021.
- iF Design Award for its ARK battery inverter in 2021.
- TÜV Rheinland Certification for its ARK battery inverter in 20
3. Goodwe
GoodWe is a prominent producer of solar inverters and presents cutting-edge and dependable three-phase inverters that are well-suited for industrial and commercial use in Australia.
The SDT-G2 Series is one of the most popular models in the market due to its advanced features, such as dual MPPT design, high efficiency, and intelligent monitoring capabilities.
These inverters are designed to provide maximum power output and excellent performance, ensuring businesses can achieve their energy targets and reduce their carbon footprint.
Key Features
- Rated power output ranges from 10 kW to 136 kW.
- Maximum efficiency up to 99%.
- Dual MPP trackers for improved flexibility and efficiency.
- Integrated DC switch for added safety.
- IP65-rated enclosure for outdoor installations.
- Compatible with Goodwe monitoring software for real-time system monitoring and fault detection.
Technical Specification
| Model | GW5K-DT |
| Max PV power | 7.5 V |
| Operating Temperature | -25 to +60 °C |
| Max Efficiency | 98.20% |
| Cooling | Natural Cooling |
| DC Surge Protection | Yes (Compatible with Type II) |
| AC Surge Protection | Yes (Compatible with Type II) |
| MPP Trackers | 2 |
Pros
- Goodwe three-phase inverters offer high efficiency and performance, ensuring maximum energy yield from the solar PV system.
- The dual MPP trackers allow for better flexibility in system design, especially in installations with multiple roof orientations or shading issues.
- The integrated DC switch enhances the safety of the installation by enabling quick disconnection of the DC side in case of emergencies.
- The Goodwe monitoring software provides real-time monitoring and fault detection, allowing for quick identification and resolution of issues.
Cons
- Some users have reported issues with the firmware and software updates, which may cause occasional system malfunctions or failures.
- Customer support may need to respond faster in some cases, which can cause delays in resolving issues.
Awards & Certifications
- Top 10 Chinese PV Inverter Brand by PVBL in 2020.
- TÜV Rheinland Certification for its PV inverters in 2019.
- Red Dot Design Award for its SDT G2 inverter in 2019.
4. Huawei
Huawei, a world-renowned technology pioneer, has ventured into the Australian solar inverter industry. With a series of three-phase inverters, they provide top-of-the-line capabilities and superior efficiency, garnering acclaim from residential, commercial, and industrial sectors that utilize solar PV systems.
The purpose of Huawei’s three-phase inverters is to transform DC power generated from solar panels or battery storage systems into AC power to drive electrical loads. Furthermore, they incorporate an array of groundbreaking features, including active power limitation, adaptable monitoring, and effortless grid integration.
Key features
- High-Efficiency Huawei inverters offer up to 98.6% efficiency, which helps to maximize the system’s energy output.
- Multiple MPPTs The inverters feature multiple Maximum Power Point Trackers (MPPTs), which enable more precise tracking of the solar array’s maximum power output.
- String-level Monitoring Huawei’s inverters come with string-level monitoring, which allows for real-time monitoring and analysis of the system’s performance.
- Flexible design The inverters are designed to be compact and lightweight, with a modular design that makes installation and maintenance easy.
- Grid Support Huawei’s inverters have various grid support features, including reactive power control, voltage regulation, and anti-islanding protection.
Technical Specification
| Model | SUN2000-5KTL-M 1 |
| Max PV power | 7.5 V |
| Operating Temperature | -25 to +60 °C |
| Max Efficiency | 98.40% |
| Cooling | Natural Convection |
| DC Surge Protection | Yes (Compatible with Type II) |
| AC Surge Protection | Yes (Compatible with Type II) |
Pros
- High efficiency and reliable performance.
- Advanced monitoring and control features.
- Flexible design for easy installation and maintenance.
- Comprehensive grid support features.
Cons
- Higher cost compared to some other three-phase inverters on the market.
- Limited availability in some regions.
Awards & Certifications
- Top Brand PV Inverter by EuPD Research in 2021.
- Intersolar Award in the Photovoltaics category in 2019 for its FusionHome Smart Energy Solution.
- TÜV Rheinland Certification for its PV inverters in 2018.
5. SAJ
SAJ Electric is a leading manufacturer of solar inverters, providing innovative and reliable solutions for residential, commercial, and industrial applications in Australia. Among their range of products, their three-phase inverters stand out for their high efficiency, advanced features, and ease of installation.
These inverters are designed to convert DC power from solar panels or battery storage systems into AC power that can be used to power electrical loads, making them an essential component of many solar PV systems.
Key Features
- Wide input voltage range to accommodate various solar panel configurations.
- Multiple maximum power point tracking (MPPT) designs to optimize power output.
- High-efficiency ratings up to 98.5%.
- Integrated DC switch and AC surge protection for safety.
- Compact and lightweight design for easy installation.
- Advanced monitoring and control capabilities with WiFi and RS485 communication options.
Technical Specification
| Model | R5-4K-T2 |
| Max PV power | 6 Kw |
| Operating Temperature | -40 to +60 °C |
| Max Efficiency | 98.30% |
| Cooling | Natural Convection |
| DC Surge Protection | Integrated |
| AC Surge Protection | Integrated |
| Warranty | 5 Years (Expandable up to 25 years) |
Pros
- Cost-effective option with good performance and efficiency.
- Easy installation and setup with a simple user interface.
- Reliable and durable with high-quality components.
- Advanced monitoring and control features for improved system management.
Cons
- Limited availability and support in some regions.
- The WiFi communication module has been reported by certain users to have reliability issues.
Awards & Certifications
- China Good Design Award in 2019 for its PV inverter.
- National High-tech Enterprise certification in 2018.
- TÜV Rheinland Certification for its PV inverters in 2016.
6. SMA
SMA is a top manufacturer of solar inverters in Australia for residential, commercial, and industrial applications. Their range of three-phase inverters is engineered for high efficiency and reliable power conversion in large-scale solar PV installations.
With advanced features such as integrated DC disconnect, multiple MPP trackers, and intelligent monitoring, SMA’s three-phase inverters are ideal for various applications, from small commercial setups to large utility-scale projects.
Moreover, SMA’s inverters are designed with durable weather-resistant enclosures and multiple protection mechanisms such as overvoltage, overcurrent, and short-circuit protection, ensuring the safety and reliability of the system.
Key Features
- High efficiency and reliability.
- Multiple power options to suit various needs.
- Advanced monitoring and control features.
- Easy installation and maintenance.
- Built-in surge protection and safety features.
- Flexible design for both indoor and outdoor use.
Technical Specification
| Model | Sunny Tripower 3.0 |
| Max PV power | 6 Kw |
| Operating Temperature | -25 to +60 °C |
| Cooling | Natural Convection |
| Max Efficiency | 98.20% |
| Warranty | 5 Years (Expandable up to 15 Years) |
Pros
- The three-phase inverters manufactured by SMA are exceptionally efficient, empowering users to maximize their solar panel output.
- The design of SMA inverters is geared towards simplicity of installation and maintenance, ultimately reducing the total cost of ownership.
- The advanced monitoring and control features make it easy to monitor energy production and troubleshoot any issues that may arise.
- The flexible design allows for indoor and outdoor use, making it an excellent option for residential and commercial settings.
Cons
- SMA three-phase inverters are generally more expensive than some other brands.
- Some users have reported issues with customer service and technical support from SMA.
Awards & Certifications
- Top Brand PV Inverter by EuPD Research in 2021.
- Intersolar Award in the Photovoltaics category in 2019 for its Sunny Tripower CORE1 inverter.
- Plus X Award for its Sunny Tripower CORE1 inverter in 2018.
7. Sofar
SOFARSOLAR is a leading manufacturer of solar inverters for residential, commercial, and industrial applications in Australia. Their three-phase inverters are designed to convert DC power from solar panels or battery storage systems into AC power that can be used to power electrical loads.
With advanced features such as dual MPPTs, intelligent monitoring, and a built-in DRM port, SOFARSOLAR’s three-phase inverters provide exceptional efficiency and reliability.
Additionally, their inverters are integrated with a large LCD and multiple protection mechanisms, such as overvoltage, overcurrent, and over-temperature protection, ensuring the system’s safety.
Key Features
- Wide input voltage range.
- High efficiency up to 98.7%.
- Dual MPPT design.
- Compact and lightweight design.
- Multiple communication options, including WiFi, Ethernet, and RS485.
- IP65-rated enclosure for outdoor installation.
- LCD for easy monitoring.
- Built-in DC switch for added safety.
Technical Specification
| Model | SOFAR 5KTL-X |
| Max PV power | 6.65 kW |
| Operating Temperature | -25 to +60 °C |
| Max Efficiency | 98% |
| Cooling | Natural Convection |
| Warranty | 5 Years (Expandable 10 years) |
Pros
- High efficiency for maximum power output.
- Wide input voltage range for flexibility in system design.
- Dual MPPT design for optimal performance in varying conditions.
- Multiple communication options for easy monitoring and control.
- Compact and lightweight design for easy installation.
- IP65-rated enclosure for outdoor installation and protection against the elements.
- LCD for easy monitoring and status updates.
- Built-in DC switch for added safety and convenience.
Cons
- It may be more expensive compared to other three-phase inverters on the market.
- Some users prefer more advanced features or customization options.
Awards & Certifications
- Top 10 Chinese PV Inverter Brand by PVBL in 2020.
- TÜV Rheinland Certification for its AC charger in 2019.
- National High-tech Enterprise certification in 2019.
8. Solar Edge
SolarEdge is a global leader in the solar inverter industry, providing innovative and efficient solutions for Australia’s residential, commercial, and industrial applications.
Their three-phase inverters are designed to convert DC power from solar panels or battery storage systems into AC power that can be used to power electrical loads.
With advanced features such as multiple MPPTs, remote monitoring, and automatic DC shutdown, SolarEdge’s three-phase inverters provide exceptional performance and safety.
Moreover, their inverters are compatible with various PV modules, giving customers greater flexibility and choice when designing their solar PV systems.
Key Features
- Wide input voltage range and high efficiency for maximum power production.
- Flexible design options with multiple MPPT trackers and compatible with a variety of modules.
- Advanced monitoring and control options through the SolarEdge monitoring platform.
- Reliable performance and built-in safety features to protect the system and users.
Technical Specification
| Model | SE5K-AU |
| Max PV power | 4.985 Kw |
| Operating Temperature | -40 to +60 °C |
| Max Efficiency | 98% |
| Cooling | Internal fan |
| Communication Interfaces | RS485, Ethernet, Wi-Fi |
Pros
- High efficiency and maximum power production.
- Flexible design options to fit various system configurations.
- Advanced monitoring and control options for easy system management.
- Built-in safety features for reliable performance and protection.
Cons
- It may require professional installation and technical expertise.
- Higher upfront cost compared to some other options
- Limited compatibility with non-Solar Edge products and systems.
Awards & Certifications
- Top Brand PV Inverter by EuPD Research in 2021.
- Intersolar Award in the Photovoltaics category in 2021 for its Energy Hub Inverter.
- Red Dot Design Award for its HD-Wave technology in 2016.
9. Solis
Solis is a trusted brand in the solar inverter industry, offering high-quality and affordable solutions for residential, commercial, and industrial applications in Australia.
Their three-phase inverters are designed to convert DC power from solar panels or battery storage systems into AC power that can power electrical loads, making them an essential component of many solar PV systems.
With a focus on innovation and performance, Solis three-phase inverters have advanced WiFi monitoring, overvoltage protection, and multiple MPPTs to provide exceptional efficiency and reliability.
Key Features
- Solis three-phase inverters have a high maximum efficiency of up to 98.7%.
- They come in various power ratings, from 5kW to 110kW, making them suitable for small and large-scale commercial installations.
- The inverters have a dual MPPT design, which enables them to track the maximum power point of two strings of solar panels independently.
- They are designed to operate in a wide temperature range, from -30°C to 60°C, ensuring reliable performance in various weather conditions.
- Solis inverters come with a user-friendly monitoring platform that enables remote monitoring and control of the system.
Technical Specification
| Model | S5-GR3P5K-AU |
| Max PVP power | 6.7 V |
| Operating Temperature | -25 to +60 °C |
| Max Efficiency | 98.30% |
| Cooling | Intelligent redundant fan-cooling |
| MPP Trackers | 2 |
| Communication Interfaces | RS485, GPRS, Wi-Fi |
Pros
- Solis three-phase inverters are cost-effective and offer good value for money.
- The dual MPPT design allows for greater flexibility in system design and improves energy output.
- The wide operating temperature range makes them suitable for harsh weather conditions.
- The user-friendly monitoring platform enables remote access and control of the system.
Cons
- The warranty period offered by Solis is shorter compared to some other manufacturers.
- Overall, Solis three-phase solar inverters are a good option for commercial and industrial solar installations, offering high efficiency, flexibility, and a user-friendly monitoring platform at an affordable price point.
Awards & Certifications
- Top 10 Chinese PV Inverter Brand by PVBL in 2020.
- Taiwan Excellent PV Award in 2019.
- TÜV Rheinland Certification for its PV inverters in 2018.
10. Sungrow
Sungrow is a global leader in the solar inverter industry, offering innovative and reliable products for residential, commercial, and industrial applications in Australia.
Their three-phase inverters are designed to convert DC power from solar panels or battery storage systems into AC power that can power electrical loads, making them an essential component of many solar PV systems.
With advanced features such as multiple MPPTs, WiFi monitoring, and overvoltage protection, Sungrow’s three-phase inverters provide exceptional performance and reliability.
Key Features
- High efficiency up to 99%.
- Wide input voltage range.
- Integrated DC switch.
- Compact design for easy installation.
- Web-based monitoring system for real-time performance monitoring.
- IP66-rated enclosure for outdoor installation.
- Advanced grid management features for improved grid stability and performance.
Technical Specification
| Model | SG5.0RT |
| Max PV power | 7.5 V |
| Operating Temperature | -25 to +60 °C |
| Max Efficiency | 98.40% |
| Cooling | Natural Cooling |
| DC Surge Protection | Yes (Compatible with Type II) |
| AC Surge Protection | Yes (Compatible with Type II) |
| Communication | WLAN, Ethernet, RS485, DI, DO |
Pros
- High efficiency translates to higher energy production and lower energy bills.
- Integrated DC switch simplifies installation and maintenance.
- The compact design saves space and makes installation easier.
- Web-based monitoring systems allow for real-time performance monitoring and easy system management.
- IP66-rated enclosure ensures the inverter can withstand harsh outdoor conditions.
- Advanced grid management features enable improved grid stability and performance.
Cons
- Sungrow inverters may be more expensive than some other brands.
- Some users have reported issues with the web-based monitoring system.
Awards & Certifications
- Top Brand PV Inverter by EuPD Research in 2021.
- Intersolar Award in the Photovoltaics category in 2020 for its SG250HX inverter.
- China Top 500 Enterprise in 2020.
Conclusion
In conclusion, three-phase inverters are essential to solar power systems in Australia, particularly for larger installations. They convert DC power from solar panels into AC power that homes and businesses can use, and they offer greater efficiency and reliability than single-phase inverters.
Three-phase inverters come in various sizes and capacities to suit different system requirements. They can be integrated with monitoring and control systems to optimize energy production and performance.
It is essential to carefully consider the specifications and features of three-phase inverters when selecting and installing them in solar power systems and to work with qualified professionals to ensure safe and effective operation. Furthermore, choosing a reputable and reliable manufacturer is crucial when purchasing a three-phase inverter.
With Australia’s rapid growth of solar power systems, selecting a suitable three-phase inverter cannot be overstated. By considering the factors discussed in this article and working with reputable manufacturers and professionals, home and business owners can maximize the efficiency and performance of their solar power systems and help contribute to a more sustainable future.
Contact Solar Power Nation for best deals on three-phase solar inverters.
