Solar + Storage Integration
Dedicated solar charging works with battery power conversion.
250kW / 900.30kWh Container Energy Storage System
20FT CONTAINER ESS
Integrated solar and battery storage for energy shifting, peak shaving and backup power.
250kWRated output900.30kWhRated energyIP54Outdoor protection
System overview
Solar + Storage, Integrated at Container Scale
The Bluesun 20ft container ESS brings 250kW power conversion, LiFePO4 battery storage and dedicated solar charging together in an outdoor energy system.
Designed for commercial and industrial sites requiring solar self-consumption, peak shaving, energy shifting and backup capability, with coordinated controls and remote monitoring.
Modular LiFePO4 Storage
High-voltage battery racks support the container configuration.
Flexible Operating Modes
Load-first, battery-first and time-of-use energy management.
Remote Monitoring
EnerLog connects system data to remote monitoring.
System configuration
What’s Included in the System
Coordinated power conversion, battery storage and supporting equipment.
Battery Storage
BSM48314H56 × 51.2V 314AhView Battery Module →
Power Conversion System
PCS2501 × 250kW
Solar Charge Controller
PBD2501 × 250kW · 5 MPPTPV Modules & Combiners
480 × 570W modules · 273.6kWp PV
Container & Protection
20ft IP54 enclosure, HVAC and fire system
Control & Monitoring
Bypass250 switching cabinet + EnerLog
View Full Configuration +
- PV Modules · 480 × 570W
- BSM570M10-72HPH; 12 modules per string, 40 strings; 273.6kWp total.
- Battery Modules · 56 × 51.2V 314Ah
- BSM48314H; published module capacity 16.076kWh; system rated energy 900.30kWh.
- Battery Combiner · 1
- 1000V / 1500A; combines multiple battery racks.
- High-Voltage Controllers · 4
- 1000V / 300A high-voltage controller boxes.
- PV Combiners · 5
- 8 inputs / 1 output each.
- Solar Charge Controller · 1 × PBD250
- 250kW solar charge controller.
- Power Conversion System · 1 × PCS250
- 250kW battery inverter.
- Switching Cabinet · 1 × Bypass250
- On-grid / off-grid switching.
- Monitoring · 1 × EnerLog
- Monitoring data logger.
- Outdoor Container · 1 × 20ft
- IP54 container with lighting, fire protection, battery racks and air conditioning.
System architecture
How the Container System Works
Solar charging, battery storage and power conversion work together to supply the connected loads.
System block diagram from the published proposal. Solid lines: power connections. Dashed lines: communication. Final wiring and protection depend on the project design.
Technical specifications
250kW / 900.30kWh System Specifications
System, PCS, battery and solar charge controller specifications.
- Rated output
- 250kW
- Rated battery energy
- 900.30kWh
- Available battery energy
- 720.24kWh at 80% DoD
- Published PV configuration
- 273.6kWp · 480 × 570W
- Battery chemistry
- LiFePO4
- Container format
- 20ft
- Container protection
- IP54
- Thermal management
- Air conditioning
- Monitoring
- EnerLog
- Operating modes
- Solar self-consumption, battery-first, time-of-use and peak shaving
- Model
- PCS250
- Rated AC power
- 250kW
- Apparent power
- 275kVA
- Rated AC voltage / current
- 400V / 361A
- AC system
- 3 / PE
- Grid voltage range
- 310–450V
- Off-grid frequency
- 50 / 60Hz
- On-grid current distortion
- THDI <3%
- Off-grid voltage distortion
- THDU ≤2% (linear load)
- Battery voltage range
- 500–820V
- Maximum efficiency
- 97.30%
- Switching
- Manual by default; optional automatic ≤10ms
- Communication
- RS485 / CAN
- Internal PCS protection
- IP20
- PCS cooling
- Forced air
- Dimensions (W × H × D)
- 1600 × 2080 × 850mm
- Weight
- 1465kg
- Module model
- BSM48314H
- Number of modules
- 56
- Module voltage / capacity
- 51.2V / 314Ah
- Published module energy
- 16.076kWh
- Cluster model
- BSMH-716.8-314AH
- Cluster nominal voltage
- 716.8V
- Cluster nominal energy
- 225.1kWh
- Cycle life
- >6000 cycles
- Design life
- 10 years+ (not a warranty term)
- Model
- PBD250
- MPPT channels
- 5
- MPPT voltage range
- 350–850V
- Full-load MPPT range
- 480–850V
- Maximum input current
- 575A (115A × 5)
- Output voltage
- 600–900V
- Maximum charging power / current
- 250kW / 416A
- Maximum efficiency
- 99%
- Communication
- RS485 / CAN
- Internal controller protection
- IP20
- Cooling
- Forced air
- Dimensions (W × H × D)
- 850 × 1900 × 700mm
- Weight
- 600kg
Real projects
Related Solar & Energy Storage Projects
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Product resources
Technical Documents
Download the 20-page system proposal, including configuration, operating modes and component specifications.
Product FAQ
Your questions, answered.
Key details from the published 20ft container ESS proposal.
What is included in the 20ft container ESS?+
The published configuration combines 480 solar modules, 56 battery modules, high-voltage controllers and combiners, PBD250 solar charging, PCS250 power conversion, a Bypass250 cabinet and EnerLog monitoring. The IP54 container includes lighting, fire protection, battery racks and air conditioning.
What is the difference between rated and available battery energy?+
The system configuration lists 900.30kWh of rated energy and 720.24kWh available at 80% depth of discharge. Delivered AC energy also depends on operating conditions and conversion losses.
How much solar PV is included?+
The published configuration uses 480 BSM570M10-72HPH modules rated at 570W each, totaling 273.6kWp. The array is arranged as 40 strings of 12 modules.
Can the system operate on-grid and off-grid?+
The proposal supports both modes using PCS250 and Bypass250. The PCS specification states manual switching by default; automatic switching of ≤10ms is an option and must be confirmed for the project.
Can the system work with a generator?+
The proposal describes generator dry-contact control for off-grid operation. A project using both grid and generator requires an appropriately designed ATS arrangement. The generator and ATS are not listed in the standard configuration.
How is the container cooled and protected?+
The outdoor container has an IP54 protection rating and includes air conditioning and a fire protection system. The internal PCS and solar charge controller are IP20 components housed within the container.
Can operation be monitored remotely?+
EnerLog collects equipment data and supports remote monitoring. The proposal shows communication through a router to the server and app; the site network connection must be configured.
Product inquiry
Plan Your Container Energy Storage System
Tell us your load profile, PV capacity, site location and backup requirements. Our team will help evaluate your system configuration.
250kW / 900.30kWh Container Energy Storage System
Model: 20FT CONTAINER ESS Category: Solar Power System