MunichJune 24, 2026 /PRNewswire/ — Sieyuan Electric today unveiled its next-generation grid-forming battery energy storage system (BESS) esGrid 3.0 at Intersolar Europe 2026 in Munich. Designed for utility-scale applications, the system aims to address three key challenges facing modern power systems: maximizing project value, maintaining grid stability, and accelerating renewable energy integration.
Sieyuan Electric Launches esGrid 3.0 BESS: More Energy, Greater Stability, Higher Value
More Energy, Smaller Footprint
esGrid 3.0 achieves an energy capacity of 6.311 MWh within a standard 20-foot container, reaching an industry-leading energy density of 148 kWh/m³. The compact design enables more energy deployment on less land, helping customers reduce project costs and enhance overall project economics.
Greater Stability, Stronger Grid Support
esGrid 3.0 employs advanced grid-forming technology to actively support voltage and frequency regulation, even under extremely weak grid conditions. By simulating the operational characteristics of traditional synchronous generators, the system enhances grid resilience, enabling higher renewable energy penetration while maintaining reliable system operation.
Higher Value, Lower Lifecycle Costs
esGrid 3.0 is designed to maximize long-term project returns, achieving a round-trip efficiency of up to 90%, reducing installation and commissioning time by 30%, and decreasing footprint by 20%. Its cluster-level control architecture and AI-driven diagnostic features further improve reliability, simplify maintenance, and enhance system availability.
Global Capabilities, Proven Delivery
This launch leverages Sieyuan Electric’s global manufacturing and service network. As a BloombergNEF Tier 1 energy storage provider, Sieyuan Electric has an annual production capacity of 50 GWh and offers localized technical support in key international markets.
Sieyuan Electric’s overseas business head stated: “Energy storage is becoming the cornerstone of future power systems. With esGrid 3.0, we are helping customers unlock greater project value, enhance grid resilience, and accelerate the transition to a cleaner, more sustainable energy future.”
About Sieyuan Electric
Sieyuan Electric is a publicly listed company specializing in power technology research and development, equipment manufacturing, and engineering services, committed to providing efficient and reliable power system solutions for global customers. Upholding the vision of “Innovating Smart Electric Energy, Enjoying a Better New Life,” Sieyuan Electric seizes the rapidly evolving opportunities in the energy industry and actively drives digital transformation across the sector. The company’s business covers areas including transmission and distribution, energy storage, automotive electronics, and power asset management, ushering in a new era of sustainable, intelligent, and green electricity with high-quality products and first-class services.