Free Custom System Design
- Grid requirement & code analysis
- Capacity & power ratio optimization
- Layout drawing & single-line diagram
- Revenue model & IRR projection
- EMS dispatch strategy simulation
Grid-Scale Storage for a Stable Grid
Yiwei's utility-scale battery energy storage systems (BESS) provide grid operators and independent power producers with MW/MWh-class solutions for peak regulation, frequency response, grid-forming, and renewable energy integration. Our containerized LFP systems are designed for high-cycles, high-efficiency operation in utility environments.
Each system integrates lithium iron phosphate battery containers, central PCS, transformer, and a unified EMS platform. The EMS supports multiple revenue streams including arbitrage, frequency regulation, spinning reserve, and renewable firming, with sub-100ms response for grid-forming and ancillary services.
From single-container installations to multi-hundred-MWh storage parks, Yiwei delivers turnkey solutions with multi-level safety protection, fire suppression, and remote monitoring — compliant with IEC, UL, and local grid codes across Europe, Asia, Africa, and the Americas.
Stabilize the Grid. Maximize Revenue.
A utility-scale BESS that delivers grid stability services and multiple revenue streams for operators and investors.
Peak Regulation
Charge during low-demand periods and discharge during peak demand, reducing grid congestion and deferring costly transmission and distribution infrastructure upgrades.
Frequency Regulation
Sub-100ms response for primary and secondary frequency control, providing fast-acting regulation services that outperform traditional thermal generators.
Grid-Forming Capability
Grid-forming inverter technology enables BESS to establish voltage and frequency reference in weak grids or islanded operation, supporting high renewable penetration.
Renewable Energy Integration
Firm variable wind and solar output, reduce curtailment, and provide ramp rate control — enabling higher renewable penetration while maintaining grid stability.
Containerized for Rapid Deployment
Our utility BESS uses standardized 20ft/40ft containerized battery units with integrated liquid cooling, fire suppression, and climate control. Pre-assembled and factory-tested, containers arrive on-site ready for rapid commissioning.
- 20ft/40ft LFP battery containers, 2–10 MWh per unit
- Central PCS with grid-forming & grid-following modes
- Unified EMS with multi-revenue-stack dispatch optimization
- Multi-level safety: cell monitoring, gas detection, fire suppression
Built for Grid-Scale Needs
From renewable firming to grid ancillary services, our utility BESS adapts to your grid code, market rules, and operational requirements.
Wind & Solar Plants
Co-located storage firms renewable output, provides ramp rate control, and enables participation in energy and ancillary service markets.
Grid Substations
Standalone BESS at transmission and distribution substations provides peak shaving, voltage support, and congestion relief for grid operators.
Regional Power Grids
Utility-owned or merchant storage assets deliver frequency regulation, spinning reserve, and energy arbitrage across wholesale electricity markets.
Microgrids & Islands
Grid-forming BESS anchors island and remote microgrids, enabling high renewable penetration while maintaining stable frequency and voltage.
From Design to After-Sales
Yiwei supports utility customers, EPCs, and developers through every project stage — from feasibility study to long-term asset management.
- Free feasibility study and revenue model analysis
- Customized system design with grid code compliance
- On-site commissioning and EMS dispatch configuration
- 10-year product warranty with optional O&M and asset management
Performance Specifications
Every component is selected for safety, efficiency, and grid compliance — backed by rigorous testing and international certifications.
Ready to Strengthen Your Grid?
Talk to our utility experts for a customized BESS solution tailored to your grid code and market requirements.