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2024-07-01
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Unprecedented fire test proves Sungrow’s utility-scale battery array prevents the spread of lithium-ion “thermal runaway”

COSTA MESA, California – In a first-of-its-kind test, Sungrow demonstrated the safety of its PowerTitan energy storagesystem. Sungrow intentionally lit a full-size 20ft standalone PowerTitan BESS on fire to ensure it could successfully contain “thermal runaway” without it spreading to other BESS units.


The test featured four of Sungrow’s PowerTitan 2.752MWh integrated battery energy storage systems – not just a small cabinet with a few batteries inside. And in a first for the industry, the large-scale burn test was livestreamed to a group of key stakeholders, including subject matter experts, owners’ engineers, and fire protection consultants.


“This elevates our commitment to industry safety and transparency in commerce to a level few have achieved,” said Hank Wang, President of Sungrow Americas.


The test – which is the world’s largest livestreamed burn test – was conducted on May 23 at a third-party lab in Puyang, Henan Province, China. The Sungrow team simulated a real energy storage plant scenario, and purposely set a complete PowerTitan on fire without any external fire control measures to see whether thermal runaway would spread to adjacent BESS units – andto assess its impact on other equipment. This test checked PowerTitan's fire safety capability at both the BLOCK and station control levels.

During the test, explosion relief panels at the top activated automatically, venting the fire upward without spreading to adjacent battery cabins and energy storage units. The top exhaust & venting design and fire-resistance bulkheads helped PowerTitan 1.0energy storage system successfully pass this ‘real fire test,’ achieving the expected objectives.

Sungrow’s Test team, Certification team, Procurement team, and Safety team worked continuously and intensively under severeweather conditions to ensure the test was completed as scheduled and successfully passed.

“Too often, renewable energy skeptics raise fire safety concerns, even though batteries are overwhelmingly safe. These criticisms slow the adoption of such technologies,” said Bryce Laber, Manager - ESS Product Engineering, of Sungrow USA. “At this stage, we are the only energy storage system supplier to execute a test with the complete machine of 10MWh and successfully pass, with unprecedented industry-firsts and transparency.”


In addition, Sungrow’s PowerTitan series of battery energy storage systems minimize the chance of a fire occurring by usingliquid cooling, which prevents dust and humidity from entering the system. The systems effectively suppress thermal runaway propagation through rapid arc shutdown, self-sealing coolant loop connectors, inter-rack fusing protection, and advanced temperature management, which limits battery cell variations to 2.5 degrees Celsius.

“By ensuring the highest safety standards, Sungrow’s technology abates safety concerns and helps encourage the adoption of utility-scale storage systems throughout the energy industry,” said Hank Wang.

Established in the U.S. over a decade ago, Sungrow Americas’ dedicated team provides professional sales, technical support,and after-sales services to North America. With a strong commitment to innovation, sustainability, and safety, Sungrow is paving the way towards a zero-carbon economy.

 

 

About Sungrow

Sungrow Power Supply Co., Ltd. (“Sungrow”) is a global leading PV inverter and ESS provider with 515 GW of power electronic converters installed worldwide as of December 2023. Founded in 1997 by University Professor Cao Renxian, Sungrow leaders in the research and development of solar inverters with the largest dedicated R&D team in the industry and a broad product portfolio offering PV inverter solutions and ESS for utility-scale, commercial & industrial, and residential applications, as well as internationally recognized floating PV plant solutions, NEV driving solutions, EV charging solutions, and renewable hydrogen production systems. With a strong 27-year track record in the PV space, Sungrow products providepower in 170 countries and regions worldwide. For more information about Sungrow, visit: www.sungrowpower.com.


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