Customizable 1MWh to 5MWh Energy Storage Battery
We utilize EVE's safe and reliable LiFePO4 cells, which are 100% brand-new Grade A with original labels and factory QR codes, sourced directly from EVE's factory. Additionally, we collaborate with other leading battery cell brands including REPT BATTERO and Hithium.
Support: OEM, ODM Custom 1 MWh to 5 MWh Battery Energy Storage Container
Fully tested before being shipped. Factory will provide free installation support and after sales service. Production time is 4-6 weeks. Estimated delivery time to job site is 10 weeks via Ocean and Truck transport. Containers can be placed together to create even larger energy storage banks.
UN38.3
Flexible, Scalable Design For Efficient 1200kWh 1.2MWh Energy Storage System. The 1.2MWh energy storage system is very suitable for buildings, factories, towns, supermarkets, large homesteads, hotels, resorts, etc. At night, the ESS will release electricity and make the entire city shine. This system can help you achieve energy independence, getting off the diesel or utility grid and providing a free, green source of electricity for your life. We will design a complete photovoltaics/solar energy storage system based on your project installation area, power demand, budget, etc.
1mwh, 1.5mwh, 2mwh, and 2.5mwh are designed BESS Containers Energy Storage System. Each 1MWH-5MWH ESS(Energy Storage System) solution is pre-engineered, manufactured, and ready to install. Each ESS includes: Battery rack and wiring (LFP), BMS and local controller, PLC system, Power Conversion System (PCS) (DC/AC), Transformer (optional) , 20GP-40GP container, HVAC system, Fire extinguishing system (FFS NOVEC 1230), Installation manual, certificate, usage guide, etc.
Direct manufacturer pricing, no middleman markups. We are able to offer durable equipment at competitive price.
IP54 Outdoor-Rated Enclosure
Designed for outdoor use, the system is housed in an IP54-rated container, offering excellent protection against dust and water, ensuring durability even in harsh environmental conditions.
Independent Internal Air Conditioning
The internal temperature control system operates independently to maintain an ideal battery environment, ensuring maximum performance regardless of external weather conditions.
Standardized Design & High Modularity
The system features a modular design, enabling easy customization and scalability. Whether you need 1MWh or 5MWh, the system can be adjusted to suit your energy requirements. Each 1MWh energy storage system container can be connected in parallel to increase capacity.
High-Performance PCS (also known as hybrid inverters)
Our system incorporates a high-performance PCS that ensures high safety standards, excellent efficiency, and reliable operation, safeguarding your energy storage and conversion processes. can connect different power supplies – solar, wind turbines, diesel generators, and utility grids. Output port: Any type of power equipment.
Quick Conversion
If battery power is exhausted, the system switches to any power supply in 0.0001 seconds.
Multiple Working Modes Are Available
battery priority, public utility grid power supply priority, solar power supply priority, etc.
1.2MWh
0.5C vs 1C Configuration
Specifications
| Technical Data | 1.2MWh Containerized Energy Storage System |
| Battery type | 3.2V, 314 Ah Lithium iron phosphate |
| Max. connection number | LFP3.2V/314Ah |
| Total energy | 1200kWh |
| Rated power (0.5P) | 600kW |
| Voltage range (Battery) | 628V~806V |
| System | |
| Dimension (W*D*H) | 6058*2438*2591mm |
| Weight | ≤30T |
| Operating temperature | -20~50℃ |
| Altitude | ≤2000m(Standard) |
| Cooling method | Liquid cooling/50% ethylene glycol |
| Fire safety configuration | Aerosol |
| Corrosion resistance | C4 |
| Communication Interface | CAN/Ethernet |
| Certificates | GB/T36276 - 2023 UN38.3 |
| Cycle Life | 8000Cycles(0.5P,25+2°C,@70%SOH) |
1.2MWh BESS Container — 0.5C vs 1C Configuration
| Parameter | 0.5C (Standard) | 1C (Custom) |
| Energy Capacity | 1.2 MWh | 1.2 MWh |
| Rated Power Output | 600 kW | ~1,200 kW |
| Full Discharge Time | ~2 hours | ~1 hour |
| Estimated Cycle Life | 8,000+ cycles | 5,000–6,000 cycles |
| Best Application | Energy arbitrage, peak shaving, solar/wind firming | Frequency regulation (FFR/FCR), fast-response grid services |
| Thermal Management | Standard air/liquid cooling | Enhanced active liquid cooling |
| BMS Configuration | Standard | Custom high-rate tuning |
| Delivery Lead Time | Standard | +1–2 weeks (custom build) |
| Warranty Terms | Standard product warranty | Project-specific, defined per duty cycle |
| Available | ✅ Stock / Short lead time | ✅ On request |
Renewable Power Plants– Smooth renewable energy output, enhance green power utilization
Containerized Battery Energy Storage System– Peak-valley arbitrage, reduce electricity costs
Microgrids/Off-Grid Power Supply– Emergency backup, ensuring stable energy
Data Centers/5G Base Stations– High-density storage, zero downtime
Ports & Mining Sites– High-power demand, long-lasting endurance
Modular design, plug-and-play deployment; smart remote monitoring & maintenance. The liquid-cooled energy storage container powers a sustainable, low-carbon future!

Need a 1C BESS container for your project?
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Limited-Time Business Offer: Bigger Orders = Bigger Rewards!
Solve the problem of staggered peaks, improve power quality and be prepared for any problems

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Price of the 1.2 MWh Energy Storage System Container
If you are looking for 1.2 MWh Energy Storage System Container and want to know more about the technical information, please feel free to contact SolarEast BESS.

Our Factory
SolarEast BESS is committed to delivering quality industrial and large scale ESS facilities professional technicasupport and thoughtful customer services beyond your expectations.


Our innovative solar and lithium battery solutions have reached clients in over 100 countries, empowering homes and businesses with sustainable, reliable energy.
Can I customize the power-to-energy ratio (C-rate) for my project?
A.Absolutely. We offer flexible C-rate configurations from 0.25C to 1C depending on your application. Our engineering team will recommend the optimal design based on your load profile, climate conditions, and expected cycle life targets.
What is the difference between 0.5C and 1C configuration?
A.0.5C (Standard): Longer cycle life (6,000+ cycles), lower thermal stress, ideal for daily energy arbitrage or peak shaving. 1C (Custom): Higher power output, suitable for frequency regulation or fast-response grid services. Battery cell selection and BMS parameters are optimized accordingly.
Can the 5.015MWh energy storage container operate at 1C (1P) charge/discharge rate?
A.Yes. While the standard datasheet specifies a rated power of 2,500kW (0.5C) for optimal cycle life and thermal performance, the system supports up to 1C (≈5,000kW) operation upon custom configuration. Please contact us for a tailored solution based on your specific grid application and duty cycle requirements.
Can I combine solar panels with the battery storage system?
A.Yes! Our systems are fully compatible with solar PV. Pairing your batteries with solar panels helps you generate and store clean energy for use anytime, reducing dependence on the grid.
How much energy storage capacity does my farm need?
A.The required capacity depends on your farm's daily power consumption and whether the system is used for full off-grid support or backup power. SolarEast BESS offers scalable solutions from 10kWh to 500kWh+.
Why are energy storage systems important for islands and remote areas?
A.These regions often lack access to stable utility grids and rely heavily on costly and polluting diesel generators. SolarEast BESS's battery storage systems provide clean, silent, and independent power, reducing fuel costs and carbon emissions while ensuring 24/7 electricity.
Can SolarEast BESS systems operate completely off-grid?
A.Yes. Our solutions are designed to support full off-grid operation, integrating solar PV, battery storage, and optional diesel backup. They can power remote homes, clinics, schools, factories, telecom towers, and more—without relying on a utility grid.
What battery types does SolarEast BESS use in island solutions?
A.We primarily use advanced LiFePO₄ (Lithium Iron Phosphate) batteries known for their high safety, long lifespan (8000+ cycles), deep discharge capability, and excellent thermal stability—ideal for hot, humid island environments.
Can SolarEast BESS energy storage system integrate with solar panels and backup generators?
A.Absolutely. We offer complete hybrid microgrid configurations that work with solar PV, wind, and diesel backup. Our energy management system (EMS) ensures optimal load balancing and energy source switching.
SolarEast business scope covers the global market. It has formed strategic partnerships with many famous brands worldwide, and has exported to more than 100 countries, including the United States, Canada, the United Kingdom, Germany, Australia, the Philippines, Lebanon, etc. SolarEast energy storage has passed the global mainstream certification, in line with the North American UL9540, UL1973, European CB/CE, and Italian CEI-021 standards.
With SolarEast, you can benefit from:
One-Stop Service
Full support from needs assessment and system design to installation and maintenance
Efficient Storage Solutions
Lower energy costs and enhance energy utilization
Smart Management
Enable peak shaving, load shifting, and backup power functionalities
Renewable Integration
Seamlessly integrate solar, wind, and other renewable energy sources for a sustainable future
FREE Request a Quote! Fill out the form to connect with us and start your energy storage journey today!