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About SAJ
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.
1,000+
Employees
25%
Technical Personal
110,000+ m²
Factory Area
300+
Intellectual Property
Factory Photos
Global Locations
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SAJ Australia
17 Silicon Pl, Tullamarine VIC 3043, Australia
+61 1800 888 725
Guangzhou Sanjing Electric Co., Ltd.(Headquarters)
9 Lizhishan Road, Huangpu, Guangzhou, Guangdong Province, China
+86 020-6660-8588
SAJ Digital Energy Italy SRL
Via Soperga, 54, 20127 Milano, Metropolitan City of Milan, Italy
+39 0292958515 (Technical Assistance Hotline)
SAJ Digital Energy Germany GmbH
Solmsstraße 83, 60486 Frankfurt am Main, Germany
+49 01622748733 (Vertrieb)
Certificate Authority
Honor 23
2024 Guangdong Province Manufacturing Industry Single Champion
China
Honor
广东省工业和信息化厅
Influence
Market Cases
Football Club
150kW/300kWh
Tenerife, Spain
Football Club
Educational Hub
600kW/1.2MWh
Maastricht-West, Netherlands
Educational Hub
Warehouse
50kW/100kWh
Cadiz, Spain
Warehouse
Local hospital
100kW/200kWh
Embu, Kenya
Local hospital
Secondary School
100kW/200kWh
Romania
Secondary School
Metal Components Production Factory
500kW/1MWh
Ljubljana, Slovenia
Metal Components Production Factory
All-in-One Hybrid Energy Storage (HS3 Series)
N/A
Bristol, UK
Resident
Hybrid Energy Storage Inverter and Battery (H2+B2 Series)
N/A
Jämtlands län, Sweden
Resident
Hybrid Energy Storage Inverter and Battery (H2+B2 Series)
N/A
Melbourne, Australia
Resident
All-in-One Hybrid Energy Storage (HS3 Series)
N/A
Thailand
Resident
CM2 C&I All-in-One BESS
N/A
Vilage Tepanje, Slovenia
Milk Factory
C&I Grid-tied PV Inverter Project
450kW
Barcelona, Spain
N/A
Road Show
All Energy
Australia
IGEM
Malaysia
Solar & Storage
Vietnam
SNEC
Shanghai
Intersolar Europe 2025
Germany
Intersolar Summit
Brazil
SEC
Australia
Intersolar Europe 2024
Germany
SEC
Australia
SNEC
Shanghai
All Energy
Australia
IGEM
Malaysia
Milestones
2024
Won the title of Smart Photovoltaic Pilot Demonstration Enterprise
CTC National Inspection 2024 Extreme Cold Performance Excellence Award
2024 Guangdong Province Manufacturing Industry Single Champion
elekeeper, an integrated smart platform for home, industry, commerce, and intelligence, has been fully upgraded
CHS2 commercial storage cabinet ranked on Checkwatt list
The successful launch of the Microinverter M2 has helped Brazil's SAJ leap into the top two in terms of inverter installations.
2023
The European Marketing Center was put into use, and subsidiaries were established in five European countries and Australia.
Changsha R&D Center put into use
The manufacturing plant in Jiangxi Ganzhou Economic Development Zone went into production
Won Top 10 - Residential Energy Storage Brands in 2023
Won 2023 "Little Giant" Enterprise
2022
The second phase of the headquarters building was put into use
elekeeper upgraded to a one-stop home energy management system solution
iF Design Award and Red Dot Design Award in 2022(Germany)
Won the title of National Intellectual Property Advantage Enterprise
2021
Wuxi R&D Center put into use
Won Top Innovative Brand in Distributed Photovoltaics in 2021(China)
2020
Won Top 10 - Influential Inverter Brands in Distributed Photovoltaics in 2020(China)
Won 2020 China Premium Residential PV Inverter Brand
Won the Top 10 Winning Brand Award for Photovoltaic Inverters in China's Distributed Photovoltaic List
2019
Won 2019 Most Innovative Enterprise in PV + Energy Storage
Won APVIA Honorable Award Industrial Contribution (For Enterprise)
Won the Quality Award for Household Photovoltaic Medium-Power Inverter (10kW)
Won the TOP6 in PVBL annual photovoltaic brand ranking
2018
The main drafting unit of the standard recognized by China Quality Certification Center
Developed a home solar-storage integrated system - the first generation of AC-coupled energy storage systems
Won 2018 Outstanding Enterprise of the China Industrial, Commercial, and Residential PV Brand Alliance
elekeeper's shared operation and maintenance won the "SNEC Megawatt Top Ten Highlights"
Won the Quality Matters China Commercial Photovoltaic Mid-Power Inverter Award
Won the title of China's Top 5 Photovoltaic Inverter Enterprise
2017
Won the 2017 China Gold Medal Residential PV Enterprise
Won Top 10 - Influential Inverter Brands in Distributed Photovoltaics in 2017(China)
Won 2017 China Gold Medal Residential PV Enterprise
Won the title of China Household Photovoltaic Brand Enterprise
elekeeper won the Gigawatt Gold Award in the "Top Ten Highlights Selection"
2016
Established Jiangxi Sanjing, a wholly-owned subsidiary
Won the title of Top 20 Chinese Photovoltaic Inverter Enterprises in the Global Photovoltaic Power Station Ranking
TÜV South China obtained its first laboratory certificate
Top 5 - China PV Brand Rankings – String Inverter Brand Value in 2016
2015
Entering the field of home energy storage
Won Top 10 - China PV Brand Rankings – String Inverter Brand Value in 2015
2014
The first phase of the headquarters building was put into use
Acquired Intertek satellite laboratory
2013
Established a wholly-owned subsidiary in Belgium
2012
Obtained the high-tech enterprise certificate for the first time
2011
Established New Energy Business Department
Entering the photovoltaic inverter field
2005
Guangzhou Sanjing Co., Ltd. was established in Guangzhou
Established the core business of inverters