The 150MW/300MWh Yongde grid-forming shared energy storage project, supplied by Sineng Electric, has been operating stably for over two months. Marking a milestone for Yunnan Province, this project is the region’s first grid-forming shared energy storage project.
For this project, Sineng Electric developed and delivered an innovative solution featuring a 5MW central PCS MV Turnkey Station and booster integration system, based on its 1250kW central PCS. With this, the company has once again set a new benchmark for single-unit rated grid-forming capacity. Equipped with Sineng’s Next-Gen enhanced hybrid grid-forming technology, the plant can effectively handle disturbances caused by high penetration of renewables, significantly strengthening grid resilience and supporting the sustainable growth of clean energy.
Sineng’s grid-forming PCS enables rapid establishment of stable voltage, frequency, and phase angle under extreme operating conditions. Leveraging its inherent synchronous voltage source characteristics, it achieves millisecond-level dynamic power support and quickly restores power quality. In the event of large-scale grid separation or outage, the plant can seamlessly switch to off-grid mode to supply critical and emergency loads, while providing fast and reliable black start services to ensure the safe and stable operation of the regional grid under extreme scenarios.
With the project successfully connected to the grid, the shared energy storage system will demonstrate full hybrid grid-forming capabilities—delivering services such as renewable output smoothing, peak shaving and valley filling, primary and secondary frequency regulation, inertia response and damping support, and black start. This establishes an efficient and flexible “generation-grid-load-storage” interaction framework, creating a replicable and scalable “Yongde Model” for the large-scale development and integration of renewables in Western Yunnan.
By positioning grid-forming energy storage as a “dynamic stabilizer” of the new power system, Sineng Electric is driving the transition of storage from a supportive energy facility to a cornerstone of grid stability. Looking ahead, the company will continue to leverage its industry-leading hybrid grid-forming technology to deliver greater value for customers, accelerating the evolution of the new-type power system toward a smarter and more sustainable future.
About Sineng
Sineng Electric is the global leading supplier of a comprehensive product portfolio including PV inverters, energy storage inverters, and digital power products. By establishing four R&D centers and leveraging top-notch resources, Sineng's unwavering commitment to technological innovation has enabled more people to access cost-effective, reliable, and sustainable energy. Known for the engineering excellence, rigorous testing standards, and consistent quality, Sineng has earned recognition as a BloombergNEF tier 1 PV inverter maker and ranks No.4 in global PV inverter shipments for 2024.