
Large Photovoltaic Grid Connected Containerized Energy Storage
500 kW to 1250 kW containerised storage from 1.03 MWh to 2.5 MWh for grid-connected PV.
Large Photovoltaic Grid Connected Containerized Energy Storage
Grid-connected containerised storage in three standard builds: 1250 kW 2.5 MWh in a 20GP, 500 kW 1.376 MWh in a 30GP and 500 kW 1.03 MWh in a 20GP. Each container is a complete system with LiFePO4 clusters, air conditioning and a matched photovoltaic panel configuration, sized against the site's own generation and demand.
Key Benefits
- Delivered as a container, so civil works reduce to a slab and a connection
- Air conditioned thermal management rather than passive venting
- Photovoltaic panel configuration quoted alongside the container, including 25% photovoltaic loss in the sizing
- Three standard builds cover 1.03 MWh to 2.5 MWh before any customisation

Buyers Who Specify This System
- Industrial parks and factories shifting load away from peak tariffs
- Large hotels, supermarkets and shopping malls with continuous base load
- Charging station operators who need buffer power at the connection point
- Government, neighbourhood and town-scale energy storage projects
- Military and standby energy storage programmes
What Usually Goes Wrong Without It
- Rooftop and ground-mount PV generates when the tariff is low and stops when it is high
- Grid connection capacity limits what a site can draw, even when the load is short and predictable
- Site-built battery rooms take permits, civil works and months of programme
- System losses are ignored at quotation stage and show up in the payback calculation
How The System Is Built
Every figure below is taken from the product specification we quote from. Where a value depends on the configuration, all configurations are listed.
- 1280 V 280 Ah x 7 clusters, 614.4 V 280 Ah x 8 clusters or 614.4 V 280 Ah x 6 clusters
- System operating voltage of 1120-1440 V or 537.6-691.2 V, single string 2.8-3.6 V
- Charging and rated discharge current of 840 A to 1120 A depending on build
- 550 W photovoltaic panel model, 40 V working voltage, 5 design sunshine hours
| Model | 1250KW 2.5MWh / 500KW 1.376MWh / 500KW 1.03MWh |
|---|---|
| Cluster configuration | 1280V280Ah x7 / 614.4V280Ah x8 / 614.4V280Ah x6 |
| Nominal capacity | 1960 Ah (280Ah x7) / 2240 Ah (280Ah x8) / 1680 Ah (280Ah x6) |
| Nominal voltage | 1280 V / 614.4 V / 614.4 V |
| Nominal power | 2508.8 kWh / 1376.256 kWh / 1032.192 kWh |
| System operating voltage | 1120-1440 V / 537.6-691.2 V; single string 2.8-3.6 V |
| Charging current | 980 A / 1120 A / 840 A |
| Rated discharge | 980 A / 1120 A / 840 A |
| Charging temperature | 0 C to 60 C |
| Discharge temperature | -20 C to 60 C |
| Cooling method | Air conditioning |
| Container | 1x20GP / 1x30GP / 1x20GP |
| Photovoltaic panel configuration | 1250KW 2.5MWh / 500KW 1.376MWh / 500KW 1.03MWh |
| Total system energy | 2508 kWh / - / 1032 kWh |
| Photovoltaic loss | 25% |
| Actual PV demand configuration | 3344 kW / - / 1376 kW |
| PV panel model | 550 W |
| PV working voltage | 40 V |
| Design sunshine time | 5 hours |
| Total panel demand | 1240 pcs / 675 pcs / 510 pcs |
| Single panel size | 2158 x 1236 x 35 mm |
| Floor space | 3308 m2 / 1800 m2 / 1361 m2 |
From Your Requirement To A Shipped System
The four stages every order of this product passes through.
Generation and demand modelling
Site load curve and PV yield decide container size and panel count.
Container configuration
Cluster voltage and count are set, then the container format follows.
Factory integration and test
Clusters, PCS interface and air conditioning are installed and tested before shipment.
Site commissioning
The container is connected, grid parameters set and the system handed over.
What We Can Evidence And What We Cannot
Cell Chemistry
Lithium iron phosphate (LiFePO4). We have 20 years of experience producing iron lithium battery cells and hold 452 technology patents in LiFePO4 batteries.
Certification
MSDS and UN38.3 are held as the basis of any certificate. Further market certificates are applied for according to each market policy requirement, so tell us the destination country at quotation stage.
Warranty And Recycling
Two years warranty on lithium battery products. We hold national qualification for lithium battery recycling and are one of four nationally licensed cell recycling enterprises in China.



What Can Be Changed
The model can be customised according to the specific needs of the market. In practice that means voltage window, capacity, enclosure dimensions, connector and charging standard, communication protocol and branding.
We private label your brand, and products can be customised for you. Sole agency is available depending on your project plan, market plan and operation.
Before The First Order
Send four things and we can configure without a second round of questions: the application and duty cycle, the energy required per day or per charge, the voltage window your system expects, and the destination market.
Minimum order quantity normally starts from one 40 HC container. Delivery is within 60 days on a first order and 30 days from the second. Payment is TT or LC at sight depending on the market.
Where This Product Is Used
Industries and solutions that specify this system most often.
IndustryGrid Scale And Industrial Storage
Containerised storage from 250 kWh to 2.5 MWh for parks, malls, charging and grid support.
View details →
IndustryMunicipal And Government Projects
Swap fleets, standby power and storage for public infrastructure programmes.
View details →
IndustryResidential And Community Storage
5 kWh to 100 kWh home and community storage with matching photovoltaic panels.
View details →
SolutionTurnkey Energy Storage Project Supply
Load study, system sizing, container build, shipping and commissioning in one contract.
View details →
SolutionOEM And Private Label Battery Pack Development
From your load profile to a finished private label pack with your brand on it.
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Buying GuideA Buyers Guide To Containerized Energy Storage
What to check in a container quotation before the battery specification distracts you.
Read the guide →
Design GuideSizing Charging And Storage For An Electric Fleet Depot
How depot load, connection capacity and duty cycle decide whether you need storage at all.
Read the guide →Questions About Large Photovoltaic Grid Connected Containerized Energy Storage
Where is this system applied?
Photovoltaic energy storage, industrial energy storage, urban energy storage, industrial parks, factories, large shopping malls, large hotels and supermarkets, neighbourhoods, towns, government projects, charging stations, and military or standby energy storage.
What container size does it ship in?
The 1250 kW 2.5 MWh and 500 kW 1.03 MWh builds ship in a 20GP. The 500 kW 1.376 MWh build ships in a 30GP.
How is the container cooled?
By air conditioning, with a charging window of 0 C to 60 C and a discharge window of -20 C to 60 C.
Do you quote the solar panels as well?
Yes. The photovoltaic panel configuration is part of the system quotation, including panel model, quantity, single panel size and the floor space required.
Can the container be customised?
Yes. The model can be customised according to the specific needs of the market storage power.
Get A Configuration For Large Photovoltaic Grid Connected Containerized Energy Storage
Send the application and the voltage window. You will get a model, a specification table and a lead time rather than a brochure.
