India’s first large-scale, grid-connected standalone energy storage project has been successfully commissioned, marking a significant milestone in the country’s renewable energy development. Supplied by Kehua, the project utilizes the company’s advanced PCS to deliver reliable and efficient performance, even under extreme environmental conditions.
According to an official document released by the National Load Dispatch Centre (NLDC) and GRID-INDIA, Kehua is recognized as an industry leader in the fields of PV and energy storage, particularly in grid-forming technology, the acknowledgment highlighting its significant position in the Indian market.
With a total capacity of 180MW/360MWh, the project is the largest independent energy storage system to be commissioned in India. Kehua supplied 192 units of its latest 1.25MW centralized Power Conversion Systems (PCS), utilizing high-efficiency IGBT modules and intelligent control algorithms. The systems are engineered to operate at full load in ambient temperatures of up to 51°C, ensuring high reliability and long-term stability, even in harsh desert-like environments. An IP65 protection rating guarantees excellent dust and water resistance, enabling continuous operation in challenging conditions.
In terms of system design, the PCS supports dual-machine DC parallel operation, achieving high reliability and operational flexibility, catering to dynamic load adjustments. The systems are equipped with advanced thermal management technologies, ensuring high availability during long-term operation.
The project also strictly complies with India’s latest CEA (Central Electricity Authority) standards, supporting critical grid functions including fast frequency regulation and voltage control, empowering the customer to meet future grid modernization and renewable integration needs, boosting overall grid resilience and operational efficiency.
With the large-scale integration of wind and solar energy, grid stability faces new challenges. In response, grid-forming energy storage technologies have emerged as a vital solution for enhancing grid resilience. Kehua’s grid-forming PCS, backed by 38 years of technical expertise, has become a key support pillar for modern power grids. Utilizing swing equations and synchronous machine simulation algorithms, it operates independently of the existing grid to provide autonomous voltage regulation and frequency control, responding to grid disturbances within milliseconds. It quickly supplements virtual inertia and suppresses power fluctuations, significantly improving grid stability while also increasing customer benefits.
