About SAJ

Revolutionize Energy Storage Solutions

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SAJ was established in 2005, focusing on providing users with higher safety, efficiency and profitability full-scene smart energy storage solutions that integrate power generation, energy storage, power consumption, and energy operations service, as well as industrial automation products and solutions. Through our advanced battery management, energy conversion, energy storage equipment integration, smart energy storage management, and smart energy storage operation, achieve our goal of growing the energy storage value. We serve partners and end-users who recognize professional brands and smart energy management, and are committed to becoming a global leader in smart energy storage.

about-us(7)

Company Culture

愿景

Vision

Becoming a Global Leader in Smart Energy Storage

 

使命Mission

Creating a Green Environment for a Fulfilling Life Together

 

价值观Values

Customer Oriented      Initiative & Innovative
Strive for Excellent        Open & Inclusive

about-us(7)

Company Culture

愿景

Vision

Becoming a Global Leader in Smart Energy Storage

 

使命Mission

Creating a Green Environment for a Fulfilling Life Together

 

价值观Values

Customer Oriented      Initiative & Innovative
Strive for Excellent        Open & Inclusive

Company Culture

 

愿景

Vision

       Becoming a Global Leader in Smart Energy Storage

 

使命Mission

         Creating a Green Environment for a Fulfilling Life Together

 

价值观Values

         Customer Oriented       Initiative & Innovative

         Strive for Excellent        Open & Inclusive

Company Culture

Vision
Becoming a Global Leader in Smart Energy Storage
Mission
Creating a Green Environment for a Fulfilling Life Together
Values
Customer Oriented Initiative & Innovative
Strive for Excellent Open & Inclusive

20 Years

Established in 2005

100 0+

Global Employees

25 %+

R&D Professionals

289

Patents & Software Publications

4

R&D & Manufacturing Centers

85 +

Export Countriesand Regions

9 GW

Production Capacity（Inverters/Year）

520 ,000Sets

Production Capacity
（Sets of VFD/Year）

Milestones

2005
Established in Guangzhou with the core business of VFD
2011
Established the renewable energy division focusing development of PV inverters
2012
First time obtained High-tech Enterprise Certificate
2013
Established the wholly-owned Belgian subsidiary
2014
Guangzhou Headquarter 1.0 was put into service· Recognized as Intertek Satellite Laboratory
2015
Launched Sunbrid, the first SAJ residential energy storage solar inverter
Awarded the Top 10 in the Annual China PV Brand Ranking for String Inverter Brand Value
2016
Established the wholly-owned Jiangxi Manufacturing Base
Awarded the Top 20 Chinese PV Inverter Enterprises in the Global PV Power Stations Ranking
Obtained the first TÜV laboratory certificate in South China
Awarded the Top 5 in the Annual China PV Brand Ranking for String Inverter Brand Value
2017
Awarded as the Chinese Residential PV Brand Enterprise
Awarded as the Top Ten Influential Inverter Brands in Chinese PV Industry
Awarded the Gold Medal of China Residential PV Enterprise
eSAJ was awared the Gold Award at the gigawatt level in the "Top Ten Highlights Selection"
2018
Recognized by the China Quality certification Center as the primary standard drafter
Released the first residential All-in-One solution- first generation AC coupled energy storage system
Awarded as the Excellent Enterprise in the China Industrial and Commercial and residential PV Brand Alliance
eSAJ was awarded the Top 10 Highlights of SNEC MW Level award
Awarded by TÜV: All Quality Matters Award
Awarded Top 5 Chinese PV Inverter Enterprises
2019
Awarded the Quality Award for Residential PV Medium Power Inverters (10kW)
Received APVIA Industry Contribution Award
Awarded as the Most Innovative Enterprise in PV and Energy Storage of the Year
Awarded the PVBL Annual PV Brand Ranking
2020
Awarded the Top 10 Outstanding Brand Award for PV Inverters on the China Distributed PV List
Awarded the Top 10 Influential Brands Award for Distributed PV in China
Awarded the Annual China High Quality Residential PV Inverter Brand
2021
R&D Wuxi Center was put into service
Awarded the China Distributed PV Innovation Brand
2022
Guangzhou Headquarter 2.0 was put into serviceLaunched the new version of eSAJ Home
Awarded iF and Red Dot Design Awards
Awarded the Outstanding Residential Energy Storage Solution of the Year
Awarded the National Intellectual Property Advantage Enterprise
2023
Official launch of Frankfurt office and established subsidiaries in five European countries and Australia
Changsha R&D Center was put into service
The second manufacturing factory in Ganzhou was put into service
Awarded the Top 10 Residential Energy Storage Brands of the Year
warded the title of "Little Giant" Enterprise
2024
Awarded the Pilot Demonstration Enterprise for Intelligent PV
Awarded the CTC National Inspection 2024 Extreme Cold Excellent Performance Award
Awarded the Guangdong Province Manufacturing Industry Single Champion
Elekeeper: fully upgraded smart residential and commercial & industrial energy management platform
CHS2 certified with Checkwatt's FFR & FCR Qualifications
Microinverter M2 drove SAJ to rank Second in solar inverter installations in Brazil
2005
Established in Guangzhou with the core business of VFD
2011
Established the renewable energy division focusing development of PV inverters
2012
First time obtained High-tech Enterprise Certificate
2013
Established the wholly-owned Belgian subsidiary
2014
Guangzhou Headquarter 1.0 was put into service· Recognized as Intertek Satellite Laboratory
2015
Launched Sunbrid, the first SAJ residential energy storage solar inverter
Awarded the Top 10 in the Annual China PV Brand Ranking for String Inverter Brand Value
2016
Established the wholly-owned Jiangxi Manufacturing Base
Awarded the Top 20 Chinese PV Inverter Enterprises in the Global PV Power Stations Ranking
Obtained the first TÜV laboratory certificate in South China
Awarded the Top 5 in the Annual China PV Brand Ranking for String Inverter Brand Value
2017
Awarded as the Chinese Residential PV Brand Enterprise
Awarded as the Top Ten Influential Inverter Brands in Chinese PV Industry
Awarded the Gold Medal of China Residential PV Enterprise
eSAJ was awared the Gold Award at the gigawatt level in the "Top Ten Highlights Selection"
2018
Recognized by the China Quality certification Center as the primary standard drafter
Released the first residential All-in-One solution- first generation AC coupled energy storage system
Awarded as the Excellent Enterprise in the China Industrial and Commercial and residential PV Brand Alliance
eSAJ was awarded the Top 10 Highlights of SNEC MW Level award
Awarded by TÜV: All Quality Matters Award
Awarded Top 5 Chinese PV Inverter Enterprises
2019
Awarded the Quality Award for Residential PV Medium Power Inverters (10kW)
Received APVIA Industry Contribution Award
Awarded as the Most Innovative Enterprise in PV and Energy Storage of the Year
Awarded the PVBL Annual PV Brand Ranking
2020
Awarded the Top 10 Outstanding Brand Award for PV Inverters on the China Distributed PV List
Awarded the Top 10 Influential Brands Award for Distributed PV in China
Awarded the Annual China High Quality Residential PV Inverter Brand
2021
R&D Wuxi Center was put into service
Awarded the China Distributed PV Innovation Brand
2022
Guangzhou Headquarter 2.0 was put into serviceLaunched the new version of eSAJ Home
Awarded iF and Red Dot Design Awards
Awarded the Outstanding Residential Energy Storage Solution of the Year
Awarded the National Intellectual Property Advantage Enterprise
2023
Official launch of Frankfurt office and established subsidiaries in five European countries and Australia
Changsha R&D Center was put into service
The second manufacturing factory in Ganzhou was put into service
Awarded the Top 10 Residential Energy Storage Brands of the Year
warded the title of "Little Giant" Enterprise
2024
Awarded the Pilot Demonstration Enterprise for Intelligent PV
Awarded the CTC National Inspection 2024 Extreme Cold Excellent Performance Award
Awarded the Guangdong Province Manufacturing Industry Single Champion
Elekeeper: fully upgraded smart residential and commercial & industrial energy management platform
CHS2 certified with Checkwatt's FFR & FCR Qualifications
Microinverter M2 drove SAJ to rank Second in solar inverter installations in Brazil
2005
Established in Guangzhou with the core business of VFD
2011
Established the renewable energy division focusing development of PV inverters
2012
First time obtained High-tech Enterprise Certificate
2013
Established the wholly-owned Belgian subsidiary
2014
Guangzhou Headquarter 1.0 was put into service· Recognized as Intertek Satellite Laboratory
2015
Launched Sunbrid, the first SAJ residential energy storage solar inverter
Awarded the Top 10 in the Annual China PV Brand Ranking for String Inverter Brand Value
2016
Established the wholly-owned Jiangxi Manufacturing Base
Awarded the Top 20 Chinese PV Inverter Enterprises in the Global PV Power Stations Ranking
Obtained the first TÜV laboratory certificate in South China
Awarded the Top 5 in the Annual China PV Brand Ranking for String Inverter Brand Value
2017
Awarded as the Chinese Residential PV Brand Enterprise
Awarded as the Top Ten Influential Inverter Brands in Chinese PV Industry
Awarded the Gold Medal of China Residential PV Enterprise
eSAJ was awared the Gold Award at the gigawatt level in the "Top Ten Highlights Selection"
2018
Recognized by the China Quality certification Center as the primary standard drafter
Released the first residential All-in-One solution- first generation AC coupled energy storage system
Awarded as the Excellent Enterprise in the China Industrial and Commercial and residential PV Brand Alliance
eSAJ was awarded the Top 10 Highlights of SNEC MW Level award
Awarded by TÜV: All Quality Matters Award
Awarded Top 5 Chinese PV Inverter Enterprises
2019
Awarded the Quality Award for Residential PV Medium Power Inverters (10kW)
Received APVIA Industry Contribution Award
Awarded the PVBL Annual PV Brand Ranking
2020
Awarded the Top 10 Outstanding Brand Award for PV Inverters on the China Distributed PV List
Awarded the Top 10 Influential Brands Award for Distributed PV in China
Awarded the Annual China High Quality Residential PV Inverter Brand
2021
R&D Wuxi Center was put into service
Awarded the China Distributed PV Innovation Brand
2022
Guangzhou Headquarter 2.0 was put into serviceLaunched the new version of eSAJ Home
Awarded iF and Red Dot Design Awards
Awarded the Outstanding Residential Energy Storage Solution of the Year
Awarded the National Intellectual Property Advantage Enterprise
2023
Official launch of Frankfurt office and established subsidiaries in five European countries and Australia
Changsha R&D Center was put into service
The second manufacturing factory in Ganzhou was put into service
Awarded the Top 10 Residential Energy Storage Brands of the Year
warded the title of "Little Giant" Enterprise
2024
Awarded the Pilot Demonstration Enterprise for Intelligent PV
Awarded the CTC National Inspection 2024 Extreme Cold Excellent Performance Award
Awarded the Guangdong Province Manufacturing Industry Single Champion
Elekeeper: fully upgraded smart residential and commercial & industrial energy management platform
CHS2 certified with Checkwatt's FFR & FCR Qualifications
Microinverter M2 drove SAJ to rank Second in solar inverter installations in Brazil
2005
Established in Guangzhou with the core business of VFD
2011
Established the renewable energy division focusing development of PV inverters
2012
First time obtained High-tech Enterprise Certificate
2013
Established the wholly-owned Belgian subsidiary
2014
Guangzhou Headquarter 1.0 was put into service· Recognized as Intertek Satellite Laboratory
2015
Launched Sunbrid, the first SAJ residential energy storage solar inverter
Awarded the Top 10 in the Annual China PV Brand Ranking for String Inverter Brand Value
2016
Established the wholly-owned Jiangxi Manufacturing Base
Awarded the Top 20 Chinese PV Inverter Enterprises in the Global PV Power Stations Ranking
Obtained the first TÜV laboratory certificate in South China
Awarded the Top 5 in the Annual China PV Brand Ranking for String Inverter Brand Value
2017
Awarded as the Chinese Residential PV Brand Enterprise
Awarded as the Top Ten Influential Inverter Brands in Chinese PV Industry
Awarded the Gold Medal of China Residential PV Enterprise
eSAJ was awared the Gold Award at the gigawatt level in the "Top Ten Highlights Selection"
2018
Recognized by the China Quality certification Center as the primary standard drafter
Released the first residential All-in-One solution- first generation AC coupled energy storage system
Awarded as the Excellent Enterprise in the China Industrial and Commercial and residential PV Brand Alliance
eSAJ was awarded the Top 10 Highlights of SNEC MW Level award
Awarded by TÜV: All Quality Matters Award
Awarded Top 5 Chinese PV Inverter Enterprises
2019
Awarded the Quality Award for Residential PV Medium Power Inverters (10kW)
Received APVIA Industry Contribution Award
Awarded the PVBL Annual PV Brand Ranking
2020
Awarded the Top 10 Outstanding Brand Award for PV Inverters on the China Distributed PV List
Awarded the Top 10 Influential Brands Award for Distributed PV in China
Awarded the Annual China High Quality Residential PV Inverter Brand
2021
R&D Wuxi Center was put into service
Awarded the China Distributed PV Innovation Brand
2022
Guangzhou Headquarter 2.0 was put into serviceLaunched the new version of eSAJ Home
Awarded iF and Red Dot Design Awards
Awarded the Outstanding Residential Energy Storage Solution of the Year
Awarded the National Intellectual Property Advantage Enterprise
2023
Official launch of Frankfurt office and established subsidiaries in five European countries and Australia
Changsha R&D Center was put into service
The second manufacturing factory in Ganzhou was put into service
Awarded the Top 10 Residential Energy Storage Brands of the Year
warded the title of "Little Giant" Enterprise
2024
Awarded the Pilot Demonstration Enterprise for Intelligent PV
Awarded the CTC National Inspection 2024 Extreme Cold Excellent Performance Award
Awarded the Guangdong Province Manufacturing Industry Single Champion
Elekeeper: fully upgraded smart residential and commercial & industrial energy management platform
CHS2 certified with Checkwatt's FFR & FCR Qualifications
Microinverter M2 drove SAJ to rank Second in solar inverter installations in Brazil
3
R&D Centers
Guangzhou, Wuxi, Changsha

Technological Innovation

SAJ currently has 3 R&D centers located in Guangzhou, Wuxi, and Changsha. R&D personnel account for over 25% of its workforce and have developed leading technologies in battery BMS, PCS, EMS, energy storage equipment integration, and smart energy storage operations. SAJ has been granted 42 invention patents, 60 utility model patents, 55 design patents, and 132 software copyrights. It has been recognized as the "Little Giant" Enterprise, the National High-Tech Enterprise, the Pilot Demonstration Enterprise for intelligent PV, the National Intellectual Property Advantage Enterprise, the Guangdong Province Manufacturing Industry Single Champion, the Guangdong PV Inverter Engineering Technology Research Center, the Guangdong Enterprise Technology Center, the Guangdong Industrial Design Center, and the Guangdong Innovative Enterprise.

Manufacturing Delivery

SAJ has established an eco-friendly and efficient intelligent manufacturing centers in Ganzhou, Jiangxi Province, covering an area of 65 acres with a building area of 110,000 m². The facility specializes in the production of photovoltaic on-grid inverters, energy storage systems, as well as motor drive and control products. The project is operated by digital systems, including the Manufacturing Execution System (MES), Quality Management System (QMS), Warehouse Management System (WMS), and Supplier Relationship Management (SRM). These systems aim to achieve lean new product design, technological productization, standardization of components, and intelligent logistics. SAJ is capable of providing users with comprehensive smart energy storage solutions and services that integrate power generation, energy storage, power consumption, energy operations service and energy operation services across all scenarios.

9 GW

Inverter / Year

3 .6GWh

Energy Storage
System / Year

520 ,000Sets

Sets of VFD
/ Year

9 GW

Inverter / Year

3 .6GWh

Energy Storage
System / Year

520000 Sets

Sets of VFD
/ Year

Global Deployment

SAJ actively develops a global business layout and adopts a localized operation strategy, and establishes liaison offices in Brazil, France, Sweden, Poland, Romania, Pakistan, Turkey, India, South Africa, Egypt and other countries and regions. Its products are sold to more than 85 countries and regions, including US, Italy, Germany, Spain, UK, the Netherlands, Belgium, Australia and Brazil, etc. In 2025, SAJ embarks on a new phase of localization in overseas manufacturing and operations
6Marketing Regions
Europe, China, Asia Pacific, Middle East and Northern Africa, Southern Africa, Americas, and Latin America.
7Overseas Subsidiaries
Germany, Italy, UK, Netherlands, Spain, Australia, Belgium

Global Deployment

SAJ actively develops a global business layout and adopts a localized operation strategy, and establishes liaison offices in Brazil, France, Sweden, Poland, Romania, Pakistan, Turkey, India, South Africa, Egypt and other countries and regions. Its products are sold to more than 85 countries and regions, including US, Italy, Germany, Spain, UK, the Netherlands, Belgium, Australia and Brazil, etc. In 2025, SAJ embarks on a new phase of localization in overseas manufacturing and operations
6Marketing Regions
Europe, China, Asia Pacific, Middle East and Northern Africa, Southern Africa, Americas, and Latin America.
7Overseas Subsidiaries
Germany, Italy, UK, Netherlands, Spain, Australia, Belgium
 

Awards and Honors

2024 Guangdong Province Manufacturing Industry Single Champion
Top 10 - Residential Energy Storage Brands in 2023
2023 "Little Giant" Enterprise
Top 10 - Distributed Energy Storage System Brands in 2023(China)
Most Influential Photovoltaic Inverter Enterprise in 2023
Winner of The "All Quality Matters" Award From TÜV Rheinland For Two Consecutive Years in 2019(Germany)
Top 10 - Influential Inverter Brands in Distributed Photovoltaics in 2020(China)
The Most Influential Brand of PV Inverter in 2020(China)
Top Innovative Brand in Distributed Photovoltaics in 2021(China)
iF Design Award and Red Dot Design Award in 2022(Germany)
iF Design Award and Red Dot Design Award in 2022(Germany)
Quality PV Inverter Company of the Year 2022(China)
Top 10 - Distributed Photovoltaic Inverters Brands in 2022(China)
Top 10 - Most Innovative Inverter Companies for Distributed PV in 2022(China)
Winner of the Best Residential Energy Storage Solution Award in 2023

Our Partners

埃及Maryzad 澳洲OSW 巴基斯坦DELTA-Energy 巴基斯坦Enabling-solutions 越南IZU 巴基斯坦ROYAL 越南TranLe power&sun 南非-3-final
埃及Maryzad 澳洲OSW 巴基斯坦DELTA-Energy 巴基斯坦Enabling-solutions 越南IZU 巴基斯坦ROYAL 越南TranLe power&sun 南非-3-final

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