Category NameEnergy Storage Product SeriesClassification6–35 kV Medium- and High-Voltage Direct-Connection Energy Storage System
Product FeaturesLow device switching frequency with high equivalent switching frequency: Reduces switching losses and improves power quality; eliminates need for step-up transformers, enabling direct grid connection at 6–35 kV: reduces system output current, lowers line losses, enhances overall system efficiency—with round-trip efficiency exceeding 90%; per-string battery management with series-only cell configuration (no parallel connections): eliminates DC circulating current, avoids weak-link effect, reduces thermal runaway risk, improves BMS cell monitoring accuracy, and minimizes false-alarm risk; fast system response time: <10 ms charge/discharge mode transition and <10 ms power response per unit—providing distinct advantages in frequency regulation applications.Electrical ParametersGrid-Connection Voltage: 10 kV for 10 kV medium-voltage direct-connection energy storage system; 35 kV for 35 kV high-voltage direct-connection energy storage system;
Rated Frequency: 50 Hz / 60 Hz;
Rated Power: 5 MW / 7.5 MW / 10 MW for 10 kV medium-voltage direct-connection energy storage system; 12.5 MW / 15 MW / 20 MW / 25 MW for 35 kV high-voltage direct-connection energy storage system;
Battery Capacity: 10 MWh / 15 MWh / 20 MWh for 10 kV medium-voltage direct-connection energy storage system; 25 MWh / 30 MWh / 40 MWh / 50 MWh for 35 kV high-voltage direct-connection energy storage system;
DC-Side Voltage of Power Unit: 600–1200 V;
Topology: High-Voltage Cascaded H-Bridge (Y- or Delta-connected);
Total Current Harmonic Distortion Rate (THDi): <2% (at rated operating conditions);
Total Voltage Harmonic Distortion Rate (THDu): <2% (at rated operating conditions);
Full-Power Dynamic Response Time: <10 ms;
Power Converter Conversion Efficiency: >98.6% (peak up to 99.16%);
Ingress Protection Rating: Minimum IP54;
Cooling Method: Full Liquid Cooling (both PCS and battery PACK employ liquid cooling);
Fire Suppression System: Pack-level, string-level, and container-level fire suppression—integrated gaseous + water-based fire suppression systems
BrandJST
Product details
Application Scenarios: Peak-shaving and valley-filling for Indonesian commercial & industrial (C&I) loads; backup power for data centers; solar-storage-diesel hybrid microgrids for mining sites and remote islands.
Functional Features: The medium- and high-voltage direct-connection energy storage system features modular PCS units, high single-unit capacity, high conversion efficiency, fast dynamic response, low harmonic content, zero DC circulating current per battery string, superior energy balancing performance, and high capacity utilization—enabling flexible capacity expansion tailored to diverse application requirements.
Product Configuration: P-292; Model: Medium- and High-Voltage Direct-Connection Energy Storage System, 6–35 kV; Voltage Ratings: 35 kV / 10 kV; Frequency Ratings: 50 Hz / 60 Hz; Power Ratings: 5 MW / 7.5 MW / 10 MW.
Indonesian Adaptation: For remote island projects in Indonesia, clarify the boundary between PV-integrated and pure backup power configurations, diesel generator coordination, spare parts provisioning, and remote O&M capability; for high-temperature and high-humidity environments, verify the enclosure IP rating, air conditioning dehumidification performance, and corrosion resistance; for outdoor installation, confirm UV resistance, rain protection, condensation resistance, and salt fog resistance ratings.
Requirement Confirmation
Verify application scenario, rated parameters, quantity, and drawings.
Factory Matching
Review supplier production capacity, certifications, and manufacturing schedule.
Order Transaction
Confirm commercial terms, contract, and documentation checklist.
Shipment Control
Track packaging, inspection records, and logistics status.
