Greensun Factory Bess Container 500kw 1.2mwh Lithium Ion Energy Storage Battery for Solar System

• Customization: Available
• Container Size: 20*8*8.6feet (6.058*2.438*2.591m)
• Weight: 20 Tons
• Model NO.: BESS-1200K
• Nominal Voltage: 768V
• Warranty: 15 Years
• Nominal Capacity: 1570ah
• Cycle Life: 6400 Cycles
• Battery Tyep: LiFePO4 (LFP)
• Battery Voltage: 768V
• Battery Capacity: 1570ah
• Battery Energy: 1205kwh
• Charge Current: 722A
• Discharge Current: 722A
• AC Output: 500kVA, 400VAC
• BMS: Active Balancing BMS
• BMS Architecture: 3-Tier BMS
• Auxiliary System: HVAC, Fss, UPS, EMS, Lighting
• Communication: Can / RS485
• Application: Self-Use, Peak-Shaving, UPS, Backup, Base Station
• Designed Life: 15 Years+
• Ingress Protection: IP54
• OEM & ODM: Acceptable
• Transport Package: Container
• Specification: BESS-1200K
• Trademark: Greensun
• Origin: China
• HS Code: 8507600090
• Production Capacity: 150

Product Description

Specification

Model	GRB-1200K (plug & play)	Remark
DC Side
Cell	3.2V314Ah (1004.8Wh)	>8000 cycles (EOL70%)
Pack	51.2V314AH (16077Wh)	Active Balancing BMS
Cluster	768V314Ah (241kWh)	2-level BMU
Battery	768V1570Ah (1205kWh)	3-level BMU
AC Side
Output	500kW, 400V 3L+N+PE	PCS ( optional Hybrid Inverter)
	Auto switch between on-grid / off-grid (STS)	ongrid -> offgrid 0ms, offgrid -> ongrid < 20ms
	Isolation Transformer
	Generator Connection
	3 phase unbalanced output
	Power frequency design	Good impact capability
	Fault ride-through capacibility	ZVRT, HVRT
	PV input	Optional
BESS Container	500kW / 1.2mWh
Container Size	Pre-engineered 20FT	IP54 Protection
Auxiliary System	HVAC, FSS, UPS, SCADA, EMS
Certification	CSC certification	Container Safety Convention
	UN3536	Shipping as a whole / Plug & Play

Active Balancing BMS

 1. Efficiency Leader

Energy transfer efficiency >90%, eliminating >50% energy waste in passive systems. Large-capacity systems save thousands of kWh annually;

2. Lifespan Engine

Precisely prevents overcharge/over-discharge, extending battery pack life by 15%–30%. Capacity retention >90% after 5 years significantly reduces replacement costs;

3. Full-Time Protection

Operates during charge/discharge/idle cycles, dynamically intercepting safety risks (e.g., preventing cellover-discharge during sudden load changes);

4. High ROI

In energy storage scenarios, hardware costs are recouped in 1–2 years via peak-valley arbitrage; lifecycle profits increase by 12%+;

Packing & Delivery

Reinforced Export Wooden Carton

Project Cases

Company Profile

Greensun Solar Co., Limited

Factory basic information
Greensun Solar Co., Ltd. is positioned as a high-tech enterprise in the field of new energy. The factory is located in Gangji Intelligent Manufacturing Park (A10-1#, A10-2#, A4-2#), with a total area of about 6,000 square meters and large-scale production capacity.
Core business layout
The company focuses on energy storage systems and covers the entire chain of lithium batteries, photovoltaics and energy services. Business segments include energy storage lithium battery packs, photovoltaic energy storage systems, energy technology services, etc.
Application scenarios
1. Large energy storage power station: containerized energy storage system;
2. Distributed energy: home/industrial and commercial energy storage solutions;
3. Photovoltaic matching: solar power generation system integration;

Greensun Solar Exhibitions Worldwide

Global Engagement, Local Solutions
Greensun Solar actively participates in serveral international energy exhibitions annually across Europe, Americas, and Asia-Pacific.

This commitment allows us to:

 >Build Trust – Showcase cutting-edge PV and storage innovations face-to-face

 >Listen Closely – Directly understand regional market needs and pain points

 >Solve Faster – Develop tailored solutions for diverse installation scenarios

 >Shorten Distances – Bridge geographical gaps through on-ground technical support

By maintaining a constant global presence, we transform exhibition insights into actionable upgrades – ensuring our solar-storage systems evolve with your real-world requirements. Wherever you operate, we're where you are.

FAQ

Q1: Are you a manufacturer or trader ?

A: Both Manufacturer & Exporter

Q2: Do you provide installation service ?

A: Yes for larger systems (usually >1MWH) we can discuss about  sending engineers. We also draw diagrams to help customers install systems byself.

Q3: Do you customize customer's logo ?

A: Yes, we do OEM (logo) and ODM.

Q3: How do you arrange it if we plan to visit your factory to see your production process ?

A: Just give a 3- day advance notice before you come to us.

Q3: Can we have online video calls for discussions and seeing your factory ?

A: Of course.