PRODUCT IDENTIFICATION
Product Designation: ST10030kWh-2500kW-MV-4h
System Classification: MWh-Scale Grid-Tied & Off-Grid Commercial Energy Storage Solution
Chemistry: Tier-1 Lithium Iron Phosphate (LFP) – Zero Cobalt, UL 1973 Certified Cells
Nominal Energy (DC): 10.03 MWh
Nominal AC Power: 2.5 MW (MV Step-Up Integrated)
Duration: 4 Hours @ Rated Power
Key Applications: Peak Shaving, Arbitrage, Micro-Grid Black Start, Renewables Firming, Demand Charge Management
INTERNAL BESS TOPOLOGY
The ST10030kWh-2500kW-MV-4h platform integrates a turnkey medium-voltage (MV) skid, combining battery racks, power conversion system (PCS), liquid cooling distribution, and a 34.5 kV / 0.69 kV step-up transformer into a single outdoor-rated enclosure. The DC busbar architecture supports multi-rack parallel connection via active current-sharing logic, minimizing circulation losses. High-voltage DC switching (up to 1500 Vdc) reduces resistive losses across 4-hour discharge cycles. The bi-directional PCS utilizes three-level topology to achieve efficiency of >98.5% at nominal load.
THERMAL PROTECTION MECHANISMS
Liquid Cooling Strategy: Distributed coolant flow through individual battery module cold plates maintains cell temperature delta ΔT < 3°C across all racks, directly extending cycle life to >8,000 cycles at 0.5C / 0.5C. The chiller-integrated thermal management unit (TMU) operates from -30°C to 55°C ambient. Fire Suppression: Dual-stage aerosol + FM-200 (or equivalent clean agent) connected to a centralized BMS trigger. Passive containment: Each module features intumescent fire seals and directed venting pathways. IP55 chassis rating prevents ingress from external dust or water jets, while C5 corrosion-resistant coating suits coastal or industrial installations.
OPERATIONAL ADVANTAGES
– 10 MWh single-unit capacity reduces balance-of-system (BOS) costs and land footprint.
– Integrated MV transformer eliminates external procurement and lowers installation complexity.
– < 10 ms islanding detection and seamless transition (on-grid ↔ off-grid) via grid-forming PCS.
- Remote firmware-over-the-air (FOTA) updates for EMS and BMS algorithms.
- Black start capable: self-energizes local micro-grid without external generator.
SPECIFICATION MATRIX
| Parameter | Specification |
|---|---|
| Nominal Energy (DC, MWh) | 10.03 (0.5C discharge, +25°C, EoL 70%) |
| Usable Energy (AC, MWh) | ~9.15 (Inverter + aux losses included) |
| Rated AC Power (MW) | 2.5 (grid-forming / grid-following) |
| System Peak Efficiency (DC/AC) | ≥ 89.5% (4-hour full cycle) |
| Cooling Method | Smart liquid cooling, ΔT < 3°C inter-module |
| Cell Chemistry | Tier-1 LFP, prismatic, 314 Ah nominal |
| Operating Voltage Range (Vdc) | 1120 – 1500 (nominal 1300 Vdc) |
| Round-trip Efficiency (DC/AC) | ≥ 89% @ 0.5C, +25°C |
| Cycle Life (70% SOH) | ≥ 8,000 cycles (0.5C / 0.5C, 25°C, 90% DoD) |
| PCS Topology | Three-level NPC, SiC hybrid |
| Grid Interfacing Voltage (kV) | 34.5 (customizable 10 – 35 kV) |
| Enclosure Protection | IP55 (battery & PCS), C5 corrosion resistant |
| Fire Suppression | Aerosol + clean agent, dual-stage, BMS controlled |
| Ambient Operating Temp (°C) | -30 to +55 (derated > 45°C) |
| Dimensions (LxWxH, mm) | 12192 x 2896 x 2896 (40ft ISO container + MV skid) |
| Total Weight (approx., metric tons) | 48 (fully loaded) |
| Standards Compliance | UL 9540, UL 9540A, IEC 62619, IEEE 1547, NFPA 855 |
| Communication Protocol | Modbus TCP, IEC 61850, MQTT, OCPP 2.0.1 (for EV integration) |
| Black Start Capability | Yes, self-energizing in < 60 sec |
REGULATORY COMPLIANCE
– UL 9540 (Energy Storage Systems and Equipment) – Certified
– UL 9540A (Thermal Runaway Fire Propagation) – Tested Level 4
– IEC 62619 (Secondary Cells for Industrial Applications)
– IEC 62477-1 (PCS Safety)
– IEEE 1547 / IEEE 2030.5 (Grid Interconnection, Smart Inverter Profiles)
– NFPA 855 (Installation compliance ready)
– UN 38.3 (Transportation safety)
– CE / UKCA marked (Low Voltage, EMC, Machinery Directives)
DELIVERY & WARRANTY
Factory Acceptance Test (FAT) performed at ISO 14001:2015 & ISO 45001 certified facility. Standard warranty: 10 years / 8,000 cycles (70% end-of-life capacity retention) with optional performance guarantee extension to 12 years. Remote diagnostics included via the manufacturer’s cloud platform (ISO 27001 certified).
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