Systems:
EPC:
COD Time:
In early 2025, the 100MW/331MWh Bramley Battery Energy Storage System (BESS) officially entered commercial operation, marking a major milestone in the UK’s transition to a low-carbon energy future. Developed by BW ESS and powered by Sungrow’s state-of-the-art PowerTitan 2.0 system, the project exemplifies innovation, safety, and long-term value in the energy storage sector. Located in Bramley, Hampshire (UK), the Bramley BESS is one of the country’s most advanced energy storage projects. Delivered in record time, the system reached commercial operation just two weeks after grid energization, an achievement that sets a new standard for battery storage deployment across the UK and Europe.
The project has a capacity of 100 MW and 331 MWh and is equipped with Sungrow’s PowerTitan 2.0, each with 5 MWh energy storage capacity, and separated Medium Voltage Stations, each with a 3.3 MVA transformer. The all-in-one design of PowerTitan 2.0 combines a 2.5 MW Power Conversion System (PCS) and a 5 MWh battery system within a single 20-foot container, leading to a significant smaller footprint of the project by 55%. In addition, this modular AC-DC block design, featuring pre-assembled battery modules and PCS, allowed for rapid on-site deployment and minimized installation complexity. A notable innovation is PowerTitan’s advanced grid-forming capability, designed to address declining grid inertia and damping associated with the increasing share of renewable energy. This cutting-edge technology, utilized for the first time in Europe, positions the Bramley project at the forefront of flexible, reliable energy storage solutions in the UK.
The primary objective of the BESS project was to deliver a high-performance, large-scale energy storage system capable of enhancing grid flexibility, enabling the integration of renewable energy and pioneering new business models for long-term storage deployment. One of the most remarkable outcomes was the record-breaking two-week timeline from grid energization to commercial operation. In the UK, this process typically spans several months due to extended commissioning, compliance testing, and regulatory approval phases. In coooperation, the teams from Sungrow and BW ESS set a new industry record by achieving commercial operation just two weeks after grid energization, completing HOT commissioning compliance and services testing within 12 days.
