783KWH-300KW Solution (Brazil)

Project Description

This project delivers a 783kWh / 315kW grid-connected battery energy storage system (BESS) deployed in São Paulo, Brazil — designed for commercial and industrial facilities requiring reliable power supply with seamless UPS backup capability.

The system is housed in a single outdoor liquid-cooled cabinet featuring an integrated design: three (3) clusters of liquid-cooled LFP battery packs (832V / 314Ah each, 783.744 kWh total), three (3) parallel 105kW PCS modules, and a built-in 500kVA STS (Static Transfer Switch) for uninterruptible power backup with ultra-fast <20ms grid-to-battery transfer time.

The integrated liquid thermal management system maintains optimal cell temperatures across a wide -25°C to 55°C operating range. The all-in-one cabinet design (IP54) eliminates the need for dedicated battery rooms or containerized solutions, enabling rapid deployment with minimal civil works — ideal for Brazil’s growing C&I energy storage market.

• Liquid-Cooled LFP Battery System: Three clusters of 832V / 314Ah LFP cells (783.744 kWh total) using 3.2V prismatic cells with integrated die-cast liquid cooling plates. Each module (52S1P, 166.4V / 52.25kWh) achieves IP67 protection. Cycle life ≥8000 cycles at 90% DOD.
• Modular PCS Architecture: Three × 105kW PCS modules (EPCS105-AM-F) operate in parallel via centralized DC bus, delivering 315kW rated / 346.5kW maximum output. Four-quadrant active/reactive control, power factor >0.99, THD <2%, max efficiency 98.5%.
• Integrated STS/UPS: Built-in 500kVA Static Transfer Switch (ESTS500-M) enables <20ms automatic transfer from grid to battery power upon detection of voltage/frequency anomalies. Eliminates need for separate UPS equipment.
• Advanced Thermal Management: Dual-circuit liquid cooling (5.2kW refrigeration + 2.5kW heating) maintains battery temperature within optimal range. PTC heater ensures reliable charging down to -25°C.
• All-in-One Outdoor Cabinet: Single-cabinet IP54 design (3800×1450×2000mm, ~9.5 tonnes) requires only concrete plinth and grid connection. Factory-tested complete unit for rapid deployment.
• Comprehensive Safety: Multi-layer protection including 3-level BMS (BMU/BCMU/BAMS), aerosol fire suppression (optional HFC-227ea), smoke/heat detection, and emergency stop.

Battery System Specifications

STS (UPS) Specifications

TAOYAN Energy Management System (EMS)

This project is equipped with TAOYAN’s self-developed Energy Management System (EMS) — a comprehensive monitoring, control, and revenue optimization platform designed specifically for industrial BESS deployments.

EMS Confluence Dashboard — Real-time system topology, unit status, revenue statistics & power curves

Core Capabilities

• System Topology Visualization: Interactive single-line diagram showing real-time power flow between Grid, STS, Battery Units, and Facility Load with live readings at each node.
• Unit-Level Monitoring: Individual status for each battery cluster — SoC %, charge/discharge power (kW), voltage (V), current (A), temperature, and health status.
• PCS Power & SoC Tracking: 24-hour rolling charts for PCS output power and battery State of Charge enabling operators to verify scheduling execution.
• Batch Control Panel: One-click operation mode switching between Manual Charge, Manual Discharge, All-weather Auto, and Scheduled modes.
• Revenue Analytics: Daily/monthly/yearly income tracking broken down by tariff period with profit calculation based on local rate schedules.
• Charge/Discharge Statistics: Comprehensive kWh accounting with daily bar-chart comparison and exportable reports.

PCS Power curves, SoC tracking, batch control panel & real-time wiring diagram

Daily charge/discharge comparison chart with period-based revenue breakdown