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HEFEI, China, April 28, 2026 /PRNewswire/ -- Sungrow, the globally leading PV inverter and energy storage system provider, successfully completed the world's first large-scale grid-forming full-scenario validation. The program covered 14 scenarios over 138 hours and was independently witnessed and verified by TÜV Rheinland. All results met multiple international standards, confirming reliable operation under complex grid conditions.
As global power systems rapidly transition toward high shares of renewable energy, grid stability is becoming a critical challenge. The test base features a world-leading 30MW grid simulation platform, along with the real short-circuit capacity regulation equipment and advanced arc-fault testing devices, enabling the replication of complex and extreme grid conditions at full scale. These tests align with grid codes and requirements across major global markets, including Europe, Australia, and China, addressing growing challenges related to grid stability and high renewable penetration worldwide.
Validated Performance Across Main Critical Grid Scenarios
- Short-Circuit Performance: Reliable Fault Support
A short-circuit test was conducted using real arc-fault equipment to simulate the most severe fault conditions. Under identical fault scenarios, the grid-forming system remained connected and continuously supplied fault current, while conventional systems are more likely to disconnect.
Key advantages：
Response time as fast as 10 ms
Stable and continuous fault current contribution
Strong fault ride-through capability
- Inertial Response: Stronger Frequency Stability
Compared with conventional grid-following systems, which may lose stability under the same disturbance, Sungrow's solution maintained continuous operation and restored frequency stability within milliseconds.
Key advantages：
Millisecond-level response to frequency deviations
Stable operation under sudden disturbances
Improved system resilience in weak grids
- Black Start: Rapid System Recovery
In a full blackout test, all external power was disconnected from the site. During this test, Sungrow's grid-forming PCS (Power Conversion System) established system voltage within 19 seconds, then successfully restarted the entire facility, restoring loads and infrastructure without external support. This capability enables industry-leading GW-scale black start and significantly enhances system restoration speed.
Key advantages：
Faster restoration
GW-scale black-start capability
virtually no circulation current
In addition to the three tests mentioned above, another eleven tests including on/off-grid switching, load switching, and oscillation damping were also successfully completed.
As demand for grid-forming technologies continues to grow, validating their real-world performance is becoming increasingly important. Reliance solely on digital power system simulations is not sufficient, while live testing provides more reliable and real validation. "Based on two decades of experience on grid-forming technology and in-depth understanding of power system stability requirements, Sungrow has built a 30 MW large-scale simulation platform and conducted 14 comprehensive real-world extreme test scenarios," said Henry Liu, General Manager of the Microgrid and Grid Solutions Center at Sungrow. "These results demonstrate grid-forming capabilities and mark a critical step toward the large-scale deployment of grid-forming technologies."
Sungrow will continue to advance the development of evaluation frameworks and industry standards, supporting broader adoption and enabling more stable, resilient power systems worldwide.
About Sungrow
Sungrow, a global leader in renewable energy technology, has pioneered sustainable power solutions for over 29 years. As of Dec 2025, Sungrow has installed over 1000 GW of power electronic converters worldwide. The company is recognized as the world's most bankable PV inverter and energy storage company (BloombergNEF). Its innovations power clean energy projects across the globe, supported by a network of 520 service outlets guaranteeing excellent customer experiences. At Sungrow, we're committed to bridging to a sustainable future through cutting-edge technology and unparalleled service. For more information, please visit: www.sungrowpower.com/en
Contact:
luly.wang@sungrow-hq.com
HEFEI, China, April 28, 2026 /PRNewswire/ -- Sungrow, the globally leading PV inverter and energy storage system provider, successfully completed the world's first large-scale grid-forming full-scenario validation. The program covered 14 scenarios over 138 hours and was independently witnessed and verified by TÜV Rheinland. All results met multiple international standards, confirming reliable operation under complex grid conditions.
As global power systems rapidly transition toward high shares of renewable energy, grid stability is becoming a critical challenge. The test base features a world-leading 30MW grid simulation platform, along with the real short-circuit capacity regulation equipment and advanced arc-fault testing devices, enabling the replication of complex and extreme grid conditions at full scale. These tests align with grid codes and requirements across major global markets, including Europe, Australia, and China, addressing growing challenges related to grid stability and high renewable penetration worldwide.
Validated Performance Across Main Critical Grid Scenarios
- Short-Circuit Performance: Reliable Fault Support
A short-circuit test was conducted using real arc-fault equipment to simulate the most severe fault conditions. Under identical fault scenarios, the grid-forming system remained connected and continuously supplied fault current, while conventional systems are more likely to disconnect.
Key advantages：
Response time as fast as 10 ms
Stable and continuous fault current contribution
Strong fault ride-through capability
- Inertial Response: Stronger Frequency Stability
Compared with conventional grid-following systems, which may lose stability under the same disturbance, Sungrow's solution maintained continuous operation and restored frequency stability within milliseconds.
Key advantages：
Millisecond-level response to frequency deviations
Stable operation under sudden disturbances
Improved system resilience in weak grids
- Black Start: Rapid System Recovery
In a full blackout test, all external power was disconnected from the site. During this test, Sungrow's grid-forming PCS (Power Conversion System) established system voltage within 19 seconds, then successfully restarted the entire facility, restoring loads and infrastructure without external support. This capability enables industry-leading GW-scale black start and significantly enhances system restoration speed.
Key advantages：
Faster restoration
GW-scale black-start capability
virtually no circulation current
In addition to the three tests mentioned above, another eleven tests including on/off-grid switching, load switching, and oscillation damping were also successfully completed.
As demand for grid-forming technologies continues to grow, validating their real-world performance is becoming increasingly important. Reliance solely on digital power system simulations is not sufficient, while live testing provides more reliable and real validation. "Based on two decades of experience on grid-forming technology and in-depth understanding of power system stability requirements, Sungrow has built a 30 MW large-scale simulation platform and conducted 14 comprehensive real-world extreme test scenarios," said Henry Liu, General Manager of the Microgrid and Grid Solutions Center at Sungrow. "These results demonstrate grid-forming capabilities and mark a critical step toward the large-scale deployment of grid-forming technologies."
Sungrow will continue to advance the development of evaluation frameworks and industry standards, supporting broader adoption and enabling more stable, resilient power systems worldwide.
About Sungrow
Sungrow, a global leader in renewable energy technology, has pioneered sustainable power solutions for over 29 years. As of Dec 2025, Sungrow has installed over 1000 GW of power electronic converters worldwide. The company is recognized as the world's most bankable PV inverter and energy storage company (BloombergNEF). Its innovations power clean energy projects across the globe, supported by a network of 520 service outlets guaranteeing excellent customer experiences. At Sungrow, we're committed to bridging to a sustainable future through cutting-edge technology and unparalleled service. For more information, please visit: www.sungrowpower.com/en
Contact:
luly.wang@sungrow-hq.com
** This press release is distributed by PR Newswire through automated distribution system, for which the client assumes full responsibility. **
Beyond Simulation: Sungrow Completes World's First Large-Scale Full-Condition Grid-Forming Extreme Test
CHANGZHOU, China, April 28, 2026 /PRNewswire/ -- Global robotic lawn mower leader Segway Navimow has produced it's one millionth unit. The organization held a ceremony at its research and development and manufacturing base in China to celebrate the milestone. The announcement comes as Navimow launches its new production line in Malaysia, providing a solid foundation for global supply chain stability and delivery efficiency.
Commenting on the achievement, Segway Navimow CEO George Ren said: "This milestone is just the beginning. We hope to become a model for 'new quality productivity' going global, making 'made in China' synonymous with efficiency, reliability, and sustainability in the home."
Behind the cumulative mass production of 1 million units lies real market demand and a testament to supply chain management capabilities. Riding this momentum, Navimow has also been named "the World's No. 1 brand in wire-free robotic lawn mower retail volume sales for two consecutive years"*.
Breaking through the 1-million-unit milestone marks Navimow's official transition from category pioneer to global leader in wire-free robotic lawn mowers.
From "World's First" to "World's No.1": A Global Product Portfolio with Two Consecutive Years of Sales Leadership
To date, as a leading brand in wire-free robotic lawn mowers, Navimow's sales network covers more than 40 countries and regions, with over 5,000 offline retail stores worldwide, creating smarter, more efficient, and more sustainable yard-living for families around the globe.
Thanks to sustained investment in technology, channels, and service delivery, the brand has reaped the dual rewards of reputation and sales. During Amazon Prime Day and Black Friday in 2025, it ranked No.1 in its sub-category across six European countries.
From "Thousands of Units" to "One Million Units": Dual-Base Collaboration and Fully Validated Mass Delivery Capability
Behind the mass production of 1 million units lies Navimow's supply chain and manufacturing capabilities covering the entire chain from R&D and production to delivery. Today, Navimow's two major manufacturing bases in Changzhou and Nantong are equipped with intelligent, large-scale engineering and manufacturing capabilities. The newly launched Malaysia production line ensures stable delivery to European and American markets while preparing production capacity for further global expansion.
From the initial delivery of thousands of units in 2022, to steadily increasing sales year by year, and now to the cumulative mass production of 1 million units, Navimow has maintained continuous growth momentum, with its supply chain and manufacturing capabilities fully validated through mass delivery.
Facing the vast global market for wire-free robotic lawn mowers, Navimow will continue to be driven by technological innovation, centered on user needs, and leverage its unique R&D efficiency and supply chain capabilities to respond quickly to the real needs of global users.
-ENDS-
About Segway Navimow
Segway Navimow, a subsidiary of Ninebot Limited (Stock Code: 689009), is a high-tech enterprise focused on intelligent service robots. Committed to integrating next-generation innovations into everyday life, the brand strives to become the world's premier wire-free intelligent robotic lawn mower brand. Its product lineup spans the i, H, X, and commercial-grade Terranox Series, catering to diverse lawn sizes and scenarios. As a leading brand in the global robotic lawn mower market, Navimow is available in over 40 countries and regions, including Europe, North America, and Australia.
CONTACT:
Cassie Wang
heng.wang@ninebot.com
+86-13717799663
** This press release is distributed by PR Newswire through automated distribution system, for which the client assumes full responsibility. **
Segway Navimow Reaches 1 million Units in Global Cumulative Mass Production
