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About DOWELL ESS

DOWELL ESS was established in 2014 focusing on energy storage products’ R&D, integration and manufacturing.

Relying on our group company’s more than ten years of accumulation of new energy core technologies, it is committed to providing smart energy storage solutions for large-scale, commercial & residential application.

DOWELL ESS has digital energy research institute in Wuxi, production line in Changzhou, and overseas warehouse in Netherlands.

Power the future!

Company Milestones

2014:

DOWELL ESS established

• Layout of global business

• Dutch warehouse landing

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2017:

• Master the core PCS technology for large-scale users

• Largest behind-the-meter ESS project in China

160MWh Industrial Park ESS project in Wuxi

• Joint frequency regulation project with thermal power plants on the generation side

• 9MW/4.5MWh frequency regulation project

2020:

• Tibet's first large-scale photovoltaic ESS demonstration project 50MW/100MWh PV+EESS

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2022:

• Released the first residential battery iPack-C6.5

• Undertake multiple C&I ESS projects with a scale of 350MWh+

• Independently developed C&I ESS projects 50MWh+

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2023:

The production base was built

• Annual output value can reach to 6GWh

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2024:

Large-scale ESS projects surge

• Large-scale grid-connected LFP projects 25MW/50MWh in Anhui

• China's and even the world's largest sodium-ion BESS power station 50MW / 100MWh in Hubei

• First to coordinate four energy storage technologies in the electricity spot market: LFP, all-vanadium liquid flow, sodium and flywheel 2.57MW/5.5MWh in Shandong

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2025:

• Released the C&I liquid cooling all in one cabinet 125kW/261kWh equipped with CATL original batteries and high-voltage box

• Undertake the German sodium project, the system design is highly adapted to SMA inverters

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Globalization

2Production and R&D Centers:
Wuxi & Changzhou

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50+Global Service Network

Key Networks:

• Asia: China, The Philippines, Singapore, Vietnam

• Europe: Germany, UK, Italy, Austria, Switzerland, Hungary, Belgium, Netherlands

• Africa: South Africa

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Partners

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DOWELL ESS has always adhered to the concept of open cooperation and has established in-depth cooperative relations with many industry-leading companies. We have also maintained long-term strategic cooperation with CATL, a world-leading power battery company, to form close cooperation in battery cell procurement, system integration and technical collaboration, and jointly promote the research and development and application of high-performance energy storage products. At the same time, our company has also joined hands with Yuchai Group, a leading company in China's internal combustion power industry, to carry out joint innovation around scenarios such as smart microgrids, and jointly create green, efficient and intelligent energy solutions.

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Strong R&D Capability

2 R&D centers in Wuxi and Beijing
Technical level is in a leading position and can lead the trend of innovation
Continuously launch innovative products and solutions

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Strict Quality Monitor

Automatic production line
IQC-IPQC-FQC-OQC quality management system
Raw materials comply with EU standards
Multinational safety certification

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Rich Project Experience

15 years’ experience in energy storage industry
More than 100 energy storage projects
The total installed capacity exceeds 2GWh