SAJ AC Coupled Battery Solution

SAJ (Guangzhou Sanjing Electric Co. Ltd.) is a prominent Chinese firm specialising in solar inverter and energy storage system research, development, and manufacturing. Established in 2005 and headquartered in Changzhou, China, SAJ initially concentrated on crafting top-quality solar inverters for both residential and commercial purposes.

Their reputation grew quickly due to their user-friendly, dependable products. As the demand for solar energy expanded, SAJ broadened its product range to encompass utility-scale solar projects.

In 2012, SAJ inaugurated a research and development hub in Germany to better serve the European market. This centre, staffed with experienced engineers, collaborates closely with clients to devise tailored solutions for their precise requirements.

SAJ ventured into the energy storage market in 2015 by introducing its inaugural lithium-ion battery system, seamlessly compatible with SAJ’s solar inverters, providing clients with comprehensive energy management solutions. Today, SAJ stands as one of the world’s leading solar inverter and energy storage manufacturers.

The company boasts a global presence, featuring offices and distribution centres in Europe, Asia, and North America. SAJ’s products find application in various settings, from residential rooftop solar systems to extensive solar farms.

The key to SAJ’s success lies in its steadfast commitment to innovation and quality. The company allocates substantial resources to research and development, employing a dedicated team of seasoned engineers who continuously create groundbreaking products.

SAJ’s rigorous quality control processes ensure that each product leaving its facility meets the highest standards of reliability and quality. In summary, SAJ is an innovative and quality-driven company with a remarkable history.

Its dedication to research and development, coupled with stringent quality control measures, positions it as a frontrunner in the solar inverter and energy storage industry. With a global footprint and unwavering commitment to customer satisfaction, SAJ is poised for sustained growth and triumph in the years ahead.

SAJ manufactures its inverters in advanced production facilities located in China, particularly at its cutting-edge manufacturing plant in Changzhou, China. This facility is outfitted with state-of-the-art technology and machinery, boasting an impressive annual production capacity exceeding 10 GW.

To maintain exceptional quality and reliability, SAJ has implemented a stringent quality control process, ensuring that each product leaving its factory upholds the highest industry standards. The company exclusively employs top-quality components in its products, subjecting each item to rigorous testing before customer shipment.

Beyond its manufacturing hubs in China, SAJ maintains regional offices and distribution centres across Europe, Asia, and North America. These strategic locations empower SAJ to offer local support and services, ensuring global accessibility to its products.

SAJ’s unwavering commitment revolves around crafting high-quality and dependable solar inverters and energy storage systems that perfectly align with its customer’s requirements. Bolstered by its cutting-edge manufacturing facilities in China, worldwide presence, and dedication to quality, SAJ stands as a frontrunner in the solar inverter industry.


  • 2018 China Energy Media Summit & Awards: Recognised for Social Responsibility Contribution
  • 2018 Sunny Technology: Acknowledged as a Premium Service Provider
  • 2018 PV & New Energy Industry: Listed among the Top 5 Solar Inverters in China
  • 2019 TUV Rheinland: Received the All Quality Matters Award for PV Inverter in residential use (10kW)
  • 2019 Science and Technology of Guangdong Mechanical Engineering Society: Secured the Second Prize
  • 2019 Shandong Solar Energy Market Summit: Honored with the Photovoltaic Industry Brand Trust Award
  • 2019 NAMKOO South: Celebrated as an Excellent Partner
  • 2019 Top 100 Leading China Renewable Energy: Recognised as a Single Top Photovoltaic Inverter Brand
  • 2019 China Good PV Awards: Included in the Top 10 Brands of Distributed Photovoltaic Inverters
  • 2019 CREC: Listed among China’s Top Ten Distributed PV Inverter Brands
  • 2019 Volt Industry Innovation Enterprise Award: Received the Photovoltaic and Energy Storage Award
  • 2019 6th GES Award: Named the Most Potential Enterprise of the Year
  • 2019 Quangtong Solar Energy Association: Distinguished as an Influential Brand
  • 2019 Network Photovoltaic Industry Innovation Enterprise: Titled as the most innovative enterprise of intelligent
  • 2019 International Solar Photovoltaic and Smart Energy and Forum (SNEC): Awarded the Gigawatt Gold Award for the R5 home photovoltaic dedicated inverter
  • 2019 Shandong Solar Energy Market Summit: Recognised with the Photovoltaic Industry Brand Trust Award
  • 2019 Light Energy Cup: Honored as the Most Influential Inverter Enterprise
  • 2020 Photovoltaic Industry Award: Named the Most Innovative Inverter Enterprise
  • 2020 China Solar PV Conference: Ranked among the top 10 influential inverter brands
  • 2020 OFweek Solar PV Awards: Celebrated as an Excellent PV Inverter Supplier
  • 2020 CREC: Included in China’s Top 10 Distributed PV Inverter Brands
  • 2021 SNEC: Awarded the Gigawatt Gold Award
  • 2019 & 2021 Asian Photovoltaic Industry Association (APVIA) Award: Recognised for Industrial Contribution and Photovoltaic Application (for enterprise)

Australian Office ADD

1 Precision Lane

Notting Hill, VIC 3168

Tel : +61 (0) 1800 888 725

Email :

If you wish to complete their contact us online form, this can be found here.

Single Phase Solution

Click on the SAJ H2 3K-6K-S2 Inverter to be taken to the data-sheet
Click on the SAJ B2-5.0-HV1 Battery to be taken to the data-sheet

H2 3K-6K-S2 – 3-6 kW

SAJ, a leading provider of renewable energy solutions, has developed the SAJ Single Phase H2 Hybrid Inverter, which aims to revolutionise solar energy integration for residential and small commercial applications. The SAJ Single Phase H2 Hybrid Inverter is a breakthrough inverter that combines solar power generation, energy storage, and smart grid capabilities into a single device. This innovative solution addresses many of the challenges faced by solar energy users, such as intermittency and grid dependency, while maximizing energy efficiency and cost-effectiveness.

One of the standout features of the SAJ Single Phase H2 Hybrid Inverter is its advanced energy management system, which enables seamless integration of solar power and energy storage. With its intelligent control algorithms, the inverter optimizes the utilisation of solar energy by intelligently switching between solar panel output, battery storage, and grid connections. This ensures a continuous and reliable power supply, even during periods of low solar generation or power outages. This flexibility not only provides users with a reliable backup power source but also allows them to maximize their self-consumption, reducing dependence on the grid and lowering electricity bills.

Another key feature of the SAJ Single Phase H2 Hybrid Inverter is its ability to communicate with the smart grid. Equipped with advanced monitoring and communication functionalities, the inverter can interact with the electricity grid to exchange information and support demand response programs. This enables users to participate in demand-side management initiatives while reducing their reliance on the grid, ultimately leading to lower energy costs and improved grid stability.

The SAJ Single Phase H2 Hybrid Inverter also offers a user-friendly interface, allowing seamless monitoring and control of the system. Through the SAJ mobile app or web portal, users can easily track their energy consumption, solar generation, battery status, and grid interaction with real-time data. This empowers users to make informed decisions about their energy usage, maximize self-consumption, and even sell excess energy back to the grid, where allowed.

In addition, the SAJ Single Phase H2 Hybrid Inverter is designed to withstand harsh environmental conditions. With its rugged and corrosion-resistant enclosure, the inverter is well-suited for installation in diverse locations. This durability ensures a longer lifespan and greater reliability, reducing maintenance requirements and enhancing overall system performance.
Moreover, the SAJ Single Phase H2 Hybrid Inverter offers exceptional efficiency, making it an ideal choice for those looking to maximize their energy production. With its innovative MPPT technology, the inverter is able to accurately track and optimize the energy harvested from solar panels, ensuring that every ray of sunlight is converted into usable electricity.

In conclusion, the SAJ Single Phase H2 Hybrid Inverter offers a range of advanced features that make it an exceptional choice for those seeking a durable, efficient, and user-friendly inverter. With its ability to withstand harsh environmental conditions, optimize energy production, and seamlessly integrate with other components, this inverter is a reliable and sustainable solution for residential and commercial applications alike.

Provided you use the ‘correct’ installation company, the SAJ inverter comes with an industry leading 13 year product warranty and weighs 17.6 kg. They also have no screen on the front, meaning less things to go wrong. The inverter comes in 6 different sizes, 3.0, 3.6, 4.0, 4.6, 5.0 and 6.0 kW. 

This inverter is compatible with the their own SAJ B2 Smart ESS Battery (B2-5.0-HV1 ). The B2 battery has a 90% depth of discharge, they are produced in 5 kWh sizes and you can install between 1-5 in a stack.

Battery Capacity (kWh)510152025
Usable Capacity (kWh)
Click on the SAJ H2-5K-10K-T2 Inverter to be taken to the data-sheet
Click on the SAJ B2-5.0-HV Battery to be taken to the data-sheet

Three Phase Solution

H2-5K-10K-T2 – 5-10 kW

The SAJ H2 Series three-phase inverter is a state-of-the-art product designed to revolutionise the solar energy industry. With its advanced technology and exceptional performance, it sets new standards for efficiency, reliability, and versatility. As the demand for renewable energy sources continues to grow, the SAJ H2 Series comes as an excellent solution for efficient power conversion in photovoltaic systems.

One of the noteworthy features of the SAJ H2 Series three-phase inverter is its exceptional conversion efficiency, which reaches up to an impressive 98.6%. This high efficiency ensures that a maximum amount of solar energy is converted into usable electricity, minimizing energy losses and maximizing the return on investment for users. With its high efficiency, the inverter guarantees optimal energy production, even in challenging environmental conditions or regions with intermittent sunlight.

The SAJ H2 Series inverter is known for its versatility, offering a wide operating voltage range, making it compatible with a variety of solar panel configurations. This flexibility allows system designers and installers to have greater freedom in designing and optimising their photovoltaic systems, meeting the unique requirements and challenges of each project. Additionally, the inverter’s ability to monitor and handle different types of solar panels, including crystalline, thin-film, or bifacial modules, further enhances its adaptability.

Equipped with advanced software and communication capabilities, the SAJ H2 Series inverter enables seamless integration and real-time monitoring of solar energy systems. Through Wi-Fi connectivity, users can remotely monitor and control their systems effectively, ensuring optimal performance and troubleshooting any issues promptly. The inverter’s interface provides detailed information on energy production, consumption, and system status, giving users a comprehensive overview of their system’s performance.

Safety is of utmost importance when it comes to solar energy systems, and the SAJ H2 Series inverter excels in this area. It adheres to rigorous safety standards and features multiple layers of protection mechanisms, ensuring the system’s reliability and the safety of users and their installations. The inverter incorporates protections against overvoltage, overcurrent, and temperature variations, safeguarding the longevity and stability of the entire system.
Additionally, the SAJ H2 Series inverter comes with advanced grid support functions, making it grid-friendly and compliant with local grid requirements. It offers features such as low voltage ride-through capability and reactive power control, ensuring stable and smooth power injection into the grid. This allows for seamless integration of the solar energy system and guarantees its contribution to grid stability.

The SAJ H2 Series inverter is also equipped with a comprehensive monitoring system that allows users to easily track the performance of their solar energy system. With real-time data on energy production, consumption, and grid interaction, users can optimize the performance of their system and maximize their energy savings. In addition, the inverter’s compact design ensures easy installation and maintenance. The SAJ H2 Series inverter is a reliable and efficient solution for harnessing solar energy and integrating it into the grid. With its advanced features and user-friendly design, it paves the way for a more sustainable and resilient energy future.

Provided you use the ‘correct’ installation company, the SAJ inverter comes with an industry leading 13 year product warranty and weighs 25 kg. They also have no screen on the front, meaning less things to go wrong. The inverter comes in 4 different sizes, 5.0, 6.0, 8.0 and 10.0 kW. 

This inverter is compatible with the their own SAJ B2 Smart ESS Battery (B2-5.0-HV1 ). The B2 battery has a 90% depth of discharge, they are produced in 5 kWh sizes and you can install between 2-4 in a stack.

Battery Capacity (kWh)101520
Usable Capacity (kWh)9.013.518.0


PRO – Depends which retailer you buy your system through but some are offering a solid 13 year warranty.

PRO – SAJ have their own service technicians available should your installer not be able to get to you quickly. 

PRO – Australian Office

PRO – They manufacture all components themselves.

PRO – A very good price


CON – Although they have been producing inverters for over 18 years, they’ve only been in the Australian market since 2019

Our Thoughts

A quality product, manufactured by a Chinese company with a strong and long trading history. However they have only be introduced into the Australian market in 2019. But don’t let that put you off. Most companies realise the potential of selling in Australia, so normally put their best foot forward to ensure smooth and timely customer service, and thus far, we have seen SAJ doing exactly that. 

The Australian office allows for warranty issues to be catered for, even if your installation company disappears. You also have the back up that SAJ have their own service technicians, meaning it could be SAJ themselves that come out, in the unlikely event you have an issue.  

They will be a good choice by anyone, that will last the test of time and produce power for years to come. ABSOLUTELY LOVE the fact you can get 13 years product warranty as standard from the ‘right’ installer, that is industry leading. 

We would definitely without a shadow of a doubt, put them on our own house or business.

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