In recent years, grid-forming energy storage projects have evolved from primarily demonstration and regional initiatives to large-scale deployments, becoming a key supporting technology for the development of new power systems. In early March 2026, Kehua Digital Energy showcased its grid-forming solutions and shared several technological breakthroughs at two European exhibitions: ENEX Kielce in Poland (March 4-5) and KEY ENERGY Rimini in Italy (March 4-6).

These innovations exemplify Kehua’s comprehensive capabilities in grid-forming energy storage technology, which include:

Grid-forming capability across the full range of energy storage products: their grid-forming energy storage PCS has passed full validation against 15 grid-forming indicators set by the China Electric Power Research Institute, covering key functions such as inertia support, primary frequency regulation, and black start. Kehua is the industry's first company to complete full functionality validation, laying a solid foundation for standardization and large-scale application.

Megawatt-scale energy storage systems with minute-level black start capability: Kehua has successfully achieved minute-level black start for energy storage stations. In practice at Pingtan, Fujian, Nanshan Thermal Power Plant in Shenzhen, and other sites, it demonstrated outstanding performance and stability, supporting rapid grid self-healing.

Multi-dimensional and multi-scenario adaptability: Whether in strong grids, weak grids, or off-grid environments, Kehua's grid-forming energy storage systems can provide excellent support and assurance. The minimum short-circuit capacity can be as low as 1.015, and the fault recovery time is less than 100 milliseconds.

Kehua has made significant technological breakthroughs in grid-forming energy storage and successfully deployed over 400 micro-grid systems globally, with total shipments exceeding 3 GW. Its projects cover critical regions and diverse scenarios, including off-grid, strong grid, weak grid, and hybrid grid-forming + grid-following applications.

l Integration of Renewable Energy and Grid Capacity Enhancement

The 1GW/4GWh project in Arongqi, Inner Mongolia, is China's largest grid-forming energy storage project, featuring an integrated AC-side solution by Kehua. This design simplifies installation and maintenance while reducing costs. A key feature is black start technology, enabling the system to independently restore voltage and frequency stability after a total grid collapse, thus enhancing overall grid resilience.

In Northwest China, a 300MW/1.2GWh grid-forming energy storage project uses Kehua's advanced full-domain integration solution. Operating in grid-forming voltage source mode, it balances voltage, frequency, and power angle stability, effectively addressing grid unbalance and improving stability and regulation. This serves as a replicable model for large-scale projects. 

l Hybrid Grid-Forming + Grid-Following Control

The 100MW/200MWh hybrid project in Minning, Ningxia, integrates grid-forming and grid-following controls, boosting ancillary service revenues and supporting local source-grid-load integration. It rapidly stores surplus renewable energy and discharges during peak demand, maintaining dynamic power balance. This model enhances renewable absorption and provides a scalable commercial pathway for energy transition. 

l Weak Grid and Off-Grid Applications

A 60MW/300MWh grid-forming project in Northwest China operates at over 4,280 meters altitude and extreme low temperatures, demonstrating Kehua's technology reliability in harsh environments and supporting high-altitude renewable integration. 

In Pakistan, a 20 MW microgrid equipped with VSG V3.0 grid-forming converters seamlessly integrates generators and storage. The system can replace generators as grid support when renewables are abundant, reducing costs and improving clean energy use. It also stabilizes voltage and frequency on weak medium-voltage busbars, ensuring reliable, high-quality power for industrial and residential users.

Kehua's Leading Position in the European Energy Storage Market

Kehua continues to promote the deployment of grid-forming energy storage technology worldwide. With outstanding performance in numerous large-scale flagship projects both domestically and internationally, the company has established itself as a leader in grid-forming technology within the industry. Meanwhile, Kehua has achieved significant success in the European market, with multiple grid-forming energy storage projects underway in Northern and Eastern Europe. In Bulgaria alone, cumulative energy storage shipments have exceeded 1 GW, securing a leading market share in the industry. 

At ENEX Kielce and KEY ENERGY Rimini, Kehua showcased its latest photovoltaic and energy storage technologies, with a particular focus on its leading grid-forming (GFM) energy storage solutions, highlighting its 38 years of expertise in power electronics and digital energy. The company's innovative products and smart solutions received enthusiastic responses from industry partners, investors, and energy professionals. 

l Highlights at the Exhibitions: Industry-Leading Grid-Forming Energy Storage Solutions

The BCS8000K~10000K-C-HUD/T8 Series is a containerized solution integrating a 1500V energy storage converter and transformer. The system employs grid-forming technology, providing additional inertial support and millisecond-level fast power response to maintain grid stability. It also supports Black-Start and Virtual Synchronous Generator (VSG) modes, offering multifunctional operation capabilities. Its integrated design and wide DC voltage adaptability make the system flexible and scalable, suitable for various scales and applications. 

l High-Performance Energy Storage Converters

The BCS1000K~1250K-C-HUD series features online insulation detection, multi-inverter parallel operation, and black start capabilities. It supports high and low voltage ride-through, ensuring stable operation even in extreme environments. Its compact design integrates measurement, protection, and communication functions for easy installation and maintenance. Additionally, the BCS1000K~1250K-C-HUD series was honored with the Energy Storage Distinction Award by ENEX, recognizing Kehua's innovation in energy storage technology and its influential role in the industry. 

l Utility-Scale String Inverters

The SPI350K-B-H X2 inverter offers a rated DC output of 1400V, supporting high current and bifacial modules. With IP66 protection and intelligent temperature monitoring, it ensures safe and reliable operation in harsh conditions.

l Commercial & Industrial PV and Storage Solutions

Kehua's ESI241-100K-M S³-EStore C&I energy storage system, along with SPI100K~125K-B X2 series and SPI50K~60K-B X2 series PV inverters, provide efficient, safe energy solutions for commercial and industrial users. The S³-EStore system supports multi-level fire protection, with advanced thermal management and intelligent power control, enhancing safety and operational efficiency to meet diverse customer needs.

l Next-Generation Intelligent AIDC Solutions

Leveraging 38 years of industry experience, Kehua has launched intelligent automation and digital control (AIDC) solutions designed to meet the dynamic demands of data centers and complex energy infrastructure. These solutions efficiently manage rapid load fluctuations, improve grid stability, and ensure high availability and energy optimization in critical environments.

Kehua presented its solutions at both ENEX Kielce in Poland and KEY ENERGY Rimini in Italy, strengthening the leadership in grid-forming technology. The strong interest and positive feedback from visitors underscored the company's vital role in supporting the energy transition across Europe and around the globe. Kehua looks forward to continued innovation and close collaboration with industry partners to jointly advance the future of clean, reliable energy.