Sungrow Achieves Rapid Commissioning of Europe's Largest Battery Storage System in 20 Days

Sungrow's Remarkable Achievement in Battery Storage

Sungrow, a leader in renewable energy technology, recently celebrated its significant achievement with the commissioning of the Hams Hall Battery Energy Storage System (BESS) in the West Midlands, UK. This project marks a pivotal moment in energy storage, showcasing an astounding capacity of 1,243 MWh, making it potentially the largest operational BESS in Europe by storage capacity.

Fast-Track Success

The completion of this ambitious project in merely 20 days from grid connection to commercial operation is a testament to Sungrow's technical expertise and dedication to energy innovation. Sungrow’s PowerTitan 2.0 technology underpins this project, equipped with advanced grid-forming capabilities, safety features, and cost-effective performance. Such rapid delivery of the project demonstrates a remarkable collaboration with BW ESS, the global energy storage owner-operator.

Located near the National Grid's Hams Hall substation, the BESS will play an integral role in stabilizing the UK's electricity supply and demand. As the need for renewable energy resources expands, this system enhances the resilience of the grid, making it a crucial asset in the future energy landscape.

Behind the Scenes of Successful Commissioning

Several strategic actions led to the swift success of the Hams Hall project. First and foremost, Sungrow deployed dedicated engineers on-site, who facilitated immediate addressing of technical challenges. This initiative minimized reliance on remote problem-solving and enabled quicker decision-making during vital commissioning phases.

Prior to the actual commissioning, vigorous preparations were made to identify and rectify faults, ensuring everything was in optimal shape for hot commissioning. The presence of operational technology (OT) engineers further strengthened system integration and operational troubleshooting.

A critical element for this success was the continuous coordination between the client and Sungrow's headquarters. With daily interactions and established escalation protocols, any issues were promptly resolved, maintaining a robust momentum throughout the commissioning process.

Comments from Industry Leaders

James Li, Vice President of Sungrow Europe, emphasized the importance of technical support and teamwork in achieving such milestones. “Delivering a battery storage project of this scale depends on engineering expertise, careful preparation, and collaboration. At Hams Hall, our teams worked directly alongside BW ESS, quickly resolving challenges to complete commissioning in record time.”

BW ESS's Chief Technology Officer, Nan Jia, echoed this sentiment, highlighting that all achievements stemmed from their combined engineering efforts. He remarked on the critical nature of such projects to the UK's transition towards a cleaner, more resilient energy system, particularly as they aim to expand the project further in its second phase.

Future Prospects

The Hams Hall project not only signifies progress in storage capacity but also represents a step forward in the UK's ambition for energy storage solutions. Large-scale storage systems like this one are becoming fundamental in managing the fluctuating generation and demand that accompany increased renewable energy integration. The second phase is expected to enhance the capacity to 1,424 MWh, further cementing its ability to cater to approximately 1.3 million homes for up to 3.5 hours.

This project exemplifies Sungrow’s ongoing commitment to supporting the UK’s energy storage landscape. Partnering with BW ESS, they previously worked together on the Bramley BESS project, displaying a growing trust and reliance on Sungrow's experience and technology.

About Sungrow

Sungrow has been at the forefront of renewable energy solutions for over two decades, installing more than 1,100 GW of power electronic converters worldwide as of June 2026. Renowned for its innovations in photovoltaic inverters and energy storage systems, Sungrow has established itself as a reliable provider in the clean energy sector, with over 520 service outlets globally, ensuring excellent customer satisfaction. Their mission is to bridge to a sustainable future through advanced technology and unmatched service. For more information, visit Sungrow.