514 kWh Sungrow PowerStack ST510CS-4H

Description

514 kWh Sungrow PowerStack ST510CS-4H Commercial & Industrial Battery Energy Storage System (BESS)

The Sungrow PowerStack ST510CS-4H is a next-generation 514 kWh Battery Energy Storage System (BESS) designed for commercial and industrial (C&I) energy storage applications. Featuring an integrated 125 kW bidirectional Power Conversion System (PCS), advanced Lithium Iron Phosphate (LFP) battery technology, and intelligent liquid cooling, the ST510CS-4H delivers reliable, efficient, and safe energy storage for businesses seeking to reduce electricity costs, improve energy resilience, and maximize the value of renewable energy installations.

Ideal for factories, warehouses, commercial buildings, hospitals, data centers, EV charging stations, and microgrids, the Sungrow PowerStack offers an all-in-one solution that combines battery storage, PCS, Battery Management System (BMS), thermal management, fire protection, and energy management capabilities within a compact outdoor cabinet.

Key Features

• 514 kWh LFP Battery Capacity for long-duration energy storage.
• 125 kW Integrated PCS for efficient bidirectional power conversion.
• 4-Hour Energy Storage Duration, ideal for peak shaving and energy shifting.
• Advanced Liquid Cooling System with intelligent thermal management for longer battery life and consistent performance.
• AI-Based Cell Health Monitoring with early thermal runaway detection.
• Integrated Fire Detection and Suppression System for enhanced operational safety.
• Supports On-Grid and Off-Grid Operation, including microgrid applications.
• Black Start Capability for critical backup power systems.
• Cloud-Based Monitoring via Sungrow iSolarCloud for remote diagnostics and system management.
• Factory Integrated Design minimizes installation time and commissioning costs.
• Standards: IEC 62619, IEC 63056, IEC 62040, IEC 62477, IEC 61000, IEC 62933, UN 38.3
• Parallel capability: Up to 25 units on‑grid, 20 units off‑grid

Technical Specifications

Specification	Value
Model	Sungrow PowerStack ST510CS-4H
Battery Capacity	514 kWh
Rated AC Power	125 kW
Battery Chemistry	Lithium Iron Phosphate (LFP)
Battery Configuration	256S2P
Nominal Voltage	691.2–934.4 VDC
AC Voltage	400 Vac, 3-Phase
Cooling System	Intelligent Liquid Cooling
PCS Efficiency	Up to 98.5%
Protection Rating	IP55
Corrosion Protection	C5
Operating Temperature	-30°C to +50°C
Maximum Altitude	3,000 m
Communication	Ethernet, Modbus TCP
Monitoring Platform	Sungrow iSolarCloud
Dimensions	2152 × 2470 × 1610 mm
Weight	Approximately 5,300 kg

Applications

The Sungrow ST510CS-4H is engineered for a wide range of energy storage applications, including:

• Commercial and industrial solar energy storage
• Peak demand reduction
• Peak shaving
• Time-of-use (TOU) energy arbitrage
• Backup power systems
• EV charging infrastructure
• Manufacturing facilities
• Distribution centers
• Shopping malls
• Hospitals and healthcare facilities
• Universities and campuses
• Data centers
• Airport and port facilities
• Island and remote microgrids

What is Included

The ST510CS-4H is an all-in-one commercial ESS cabinet, typically including:

• 514 kWh LFP battery
• 125 kW bidirectional PCS
• Battery Management System (BMS)
• Energy Management interface
• Intelligent liquid cooling
• Fire detection and suppression
• HVAC
• Outdoor IP55/C5 cabinet
• Factory acceptance testing (FAT)

No separate PCS is required because it is already integrated into the cabinet.

Performance Benefits

The ST510CS-4H helps organizations lower operating costs by storing excess solar or off-peak electricity for use during periods of high demand. Its intelligent liquid cooling system maintains cell temperature differences within approximately 2.5°C, reducing thermal stress, improving charging and discharging efficiency, and extending battery service life. AI-powered thermal balancing also reduces auxiliary energy consumption, contributing to lower operating costs over the system’s lifetime.

Safety & Reliability

Safety is a core feature of the Sungrow PowerStack platform. The system includes multi-level battery protection, smoke, heat, and combustible gas detection, intelligent BMS monitoring, integrated fire suppression, and advanced thermal runaway prevention technologies. These features provide reliable operation even in demanding commercial and industrial environments.

Why Choose the Sungrow PowerStack ST510CS-4H?

The Sungrow PowerStack ST510CS-4H combines high-capacity energy storage, integrated power conversion, advanced thermal management, and intelligent energy control into a single turnkey solution. Its compact footprint, factory-integrated design, and industry-leading efficiency make it an excellent choice for organizations looking to maximize renewable energy utilization, reduce electricity costs, and improve energy security.

Whether your project involves commercial solar integration, industrial load management, backup power, or microgrid development, the 514 kWh Sungrow PowerStack ST510CS-4H delivers a reliable, scalable, and future-ready energy storage solution for today’s demanding energy landscape.

 

DATASHEET 

Warranty

Typical commercial warranty offerings are :

• 10-year product warranty (varies by region and distributor)
• Optional extension to 15–20 years
• Performance warranty based on retained battery capacity

Always confirm the warranty with the local Sungrow distributor, as terms vary by country and project.