In February 2025, the Bramley 331MWh Battery Energy Storage System (BESS), developed by BW ESS and powered by Sungrow's advanced BESS technology, achieved commercial operation in just two weeks after grid connection. This remarkable feat, a 72% improvement in efficiency, set a new benchmark for BESS project delivery in the UK and Europe.

Erik Strømsø, CEO of BW ESS, praised Sungrow's performance in a commendation letter: "Completing HOT commissioning, compliance testing, and ancillary service testing in two weeks is extraordinary. We appreciate your dedication and look forward to future collaborations."

Typically, UK energy storage projects take months to transition from grid connection to commercial operation due to commissioning, compliance testing, and regulatory approvals. Delays are often exacerbated by grid connection backlogs. Sungrow's achievement of a two-week turnaround was made possible by the innovative design of its PowerTitan 2.0 system and the expertise of its highly efficient team.

Key Factors Behind Sungrow's Success

1. AC-DC Block Design: Simplifying On-site Installation  

Sungrow's PowerTitan 2.0 features an all-in-one AC-DC block design, with pre-assembled battery modules and power conversion systems (PCS). This streamlined approach minimizes on-site installation time. Unlike traditional systems that require separate PCS and battery cabinets, Sungrow's design includes factory pre-installation and pre-commissioning. The system is rigorously tested under various grid scenarios and extreme conditions, ensuring seamless integration and significantly reducing commissioning timelines.

2. A Skilled and Multidisciplinary Team  

The Bramley 331MWh BESS project is a critical asset for BW ESS, with strict timelines to meet. Sungrow assembled a cross-functional team of R&D experts, delivery specialists, and field engineers to ensure smooth project execution. This team not only reduced the grid-to-operation cycle from the industry standard of 50 working days to just two weeks but also completed all grid ancillary service tests in just 1.5 days. This efficiency allowed BW ESS to start energy trading and grid services earlier, maximizing project benefits.

3. Global Support and Expertise  

With over 520 service centers worldwide, Sungrow provides 24/7 technical support across 180+ countries. Leveraging 28 years of technological expertise and service experience, the company is redefining industry standards. Sungrow offers end-to-end solutions, from planning and design to operation and maintenance optimization, ensuring exceptional customer experiences and accelerating the global energy transition.

Sungrow's delivery of the Bramley 331MWh BESS project highlights its commitment to innovation, efficiency, and customer satisfaction, setting a new standard for energy storage projects worldwide.