2.5MW 0.69kV/10kV Integrated Energy Storage Booster Unit
Flexible Configuration
Integrated inverter and booster 0.63/(6~37)kV, highly compact;
Improves space efficiency, easier installation;
Modular, configurable power (215kW-3.5MW)
Extensive Use
With active/reactive four- quadrant adjustment function;
Support constant power& current & & voltage;
Deployment on demand. Peak shaving and local automatic operation
Product Description
2.5MW Integrated Energy Storage Step-up Unit is a highly compact, all-in-one solution designed for utility-scale and large commercial & industrial (C&I) energy storage applications. By integrating a bi-directional Energy Storage Converter (PCS), a medium-voltage step-up transformer, and high/low voltage distribution equipment into a single enclosure, this unit solves the instability and intermittency challenges of renewable energy sources like solar and wind . It provides a seamless interface between battery storage systems and the 6~37kV medium-voltage grid, ensuring efficient power conversion and stable transmission.
True “All-in-One” Integration
The unit integrates the core components of a power station into one skid: the bi-directional Power Conversion System (PCS), a dry-type or oil-immersed step-up transformer, high-voltage switchgear (load break switch / circuit breaker), and low-voltage distribution compartments. This “plug-and-play” design minimizes on-site cabling and construction work.
Robust Grid Support Functions
The integrated PCS is equipped with advanced grid features to enhance stability. It supports Low Voltage Ride Through (LVRT), High Voltage Ride Through (HVRT), and offers various operation modes including PQ, VF, VSG (Virtual Synchronous Generator), and Black Start capabilities. This makes it ideal for weak grid areas and microgrid applications.
Space-Saving & Compact Design
By eliminating redundant enclosures and busbars, this integrated machine significantly reduces the system footprint compared to separate component installations. The factory-assembled design reduces installation and commissioning time by approximately 50% , accelerating project timelines and reducing civil engineering costs.
Smart Monitoring & Communication
The unit supports standard communication protocols including IEC 61850, Modbus-RTU/TCP, and IEC 104, enabling seamless integration with plant-level Energy Management Systems (EMS) and remote monitoring platforms for unmanned operation.
Applications
Utility-Scale Energy Storage: Frequency regulation, peak shaving, and reserve capacity for transmission grids.
Renewable Integration: Smoothing the output of wind and solar power plants to meet grid codes.
Large C&I Storage: Behind-the-meter applications for demand charge reduction and backup power.
Microgrids: Providing grid-forming capabilities and black start functions for islanded networks.
FAQ
Unlike traditional systems where the PCS (inverter) and transformer are installed separately and connected on-site with cables, our integrated unit combines the 2.5MW bi-directional PCS, the 0.69kV/10kV step-up transformer, MV switchgear, and auxiliary controls into a single, factory-assembled enclosure. This “all-in-one” design saves installation time, reduces the physical footprint, and increases system reliability.
One of the main advantages of the integrated design is the rapid deployment. On-site installation typically takes 1-2 days, primarily involving positioning the skid on a prepared foundation and connecting the external battery bank and the 10kV grid cable. Factory pre-assembly and testing reduce commissioning time by up to 50% compared to discrete component systems.
The unit integrates a complete 10kV switchgear compartment. This includes a vacuum circuit breaker or load break switch, along with necessary protection relays (e.g., overcurrent, earth fault, differential protection) to ensure safe grid interconnection and comply with local grid codes. You only need to bring the 10kV feeder cable into the cabinet.