At Intersolar Europe 2026, Sieyuan Electric introduced esGrid 3.0, its latest grid-forming battery energy storage system (BESS) engineered for utility-scale energy projects. The new solution is designed to tackle key challenges facing today's power networks, including improving project profitability, enhancing grid reliability, and supporting the growing adoption of renewable energy sources.

High Energy Capacity in a Compact Design
The esGrid 3.0 system offers 6.311 MWh of storage capacity within a standard 20-foot container, delivering an impressive energy density of 148 kWh/m³. Its space-efficient design allows developers to install more energy storage capacity on a smaller footprint, reducing land requirements and contributing to lower overall project expenses.

Advanced Grid Support and Reliability
Featuring sophisticated grid-forming capabilities, esGrid 3.0 helps stabilize voltage and frequency, even in extremely weak grid environments. By replicating the operational characteristics of traditional synchronous generators, the system enhances grid resilience and supports greater integration of renewable energy while ensuring dependable performance.

Improved Economics and Lower Operating Costs
Built to optimize long-term asset value, esGrid 3.0 delivers round-trip efficiency of up to 90%. The system can shorten installation and commissioning timelines by 30% and decrease site space requirements by 20%. In addition, its cluster-based control framework and AI-driven monitoring tools improve system reliability, streamline maintenance activities, and increase operational uptime.

Global Manufacturing Strength and Service Support
The launch is supported by Sieyuan Electric’s extensive international production and service infrastructure. Recognized as a Tier 1 Energy Storage Supplier by BloombergNEF, the company maintains an annual manufacturing capacity of 50 GWh and offers localized technical assistance across major global markets.

Commenting on the launch, the company’s Head of Overseas Business noted that energy storage is playing an increasingly vital role in the evolution of modern power systems. According to the executive, esGrid 3.0 is designed to help customers improve project economics, reinforce grid stability, and accelerate the shift toward a cleaner and more sustainable energy landscape.

Jinko ESS, the energy storage arm of JinkoSolar Co., Ltd., has successfully supplied 722MWh of energy storage equipment for a major renewable energy development in India. The project incorporates 144 units of the company's SunTera G2 liquid-cooled energy storage systems, which are designed to support large-scale renewable energy integration, enhance grid reliability, facilitate clean energy distribution, and assist with peak demand management. Beyond supplying equipment, Jinko ESS offers comprehensive services including system integration, project execution, and long-term operational support tailored to various energy storage applications.

As renewable energy projects expand and a greater share of power generation is connected to national grids, energy storage has emerged as a crucial component for maintaining grid stability and optimizing asset performance. Utility-scale renewable energy facilities require storage solutions capable of meeting stringent standards for safety, environmental resilience, project delivery, and ongoing service support.

The Indian project presents several operational challenges, including extreme heat, elevated humidity levels, dusty conditions, intense solar exposure, and logistical complexities associated with long-distance transportation. These demanding conditions necessitate robust engineering, advanced thermal management, high protection standards, and dependable on-site service capabilities. The successful deployment of the 722MWh system highlights Jinko ESS's expertise in delivering large-scale energy storage solutions in challenging environments.

To address these requirements, the SunTera G2 system utilizes advanced liquid-cooling technology that maintains battery cell temperature variations within 2.5°C, improving system efficiency, consistency, and long-term operational reliability. The solution is engineered to perform in temperatures of up to 55°C and humidity levels reaching 99%. Additional features such as an IP55-rated enclosure, corrosion-resistant design, multilayer safety mechanisms, and intelligent thermal controls ensure dependable and secure operation for large renewable energy installations.

While equipment supply marks an important milestone, sustained performance throughout the system's lifecycle remains essential for maximizing customer value. Drawing on its expertise in battery cells, PACK manufacturing, system integration, and global project execution, Jinko ESS provides end-to-end support that includes system design, product deployment, field services, and long-term operations and maintenance partnerships. The company also offers an AI-enabled Energy Management System (EMS) that delivers real-time monitoring, operational analysis, load forecasting, and charge-discharge optimization, helping customers improve renewable energy utilization, strengthen grid responsiveness, and enhance asset returns.

According to Anita Li, Vice President of Jinko ESS, the growing scale of renewable energy projects is driving increased expectations for energy storage solutions. She noted that energy storage systems play a vital role not only in capacity management but also in ensuring project safety, grid dispatch efficiency, and long-term economic performance. Li described the successful delivery of the 722MWh project as another significant milestone for the company in handling complex utility-scale applications and reaffirmed Jinko ESS's commitment to supporting customers through reliable technology, effective project delivery, and ongoing service support.

Looking ahead, Jinko ESS intends to continue supporting large-scale energy storage developments worldwide through its integrated approach encompassing advanced products, system integration expertise, project management capabilities, and long-term service offerings. The company aims to contribute to a more resilient, adaptable, and sustainable global energy infrastructure as the transition to clean energy accelerates.