MegaCube™ Series

The MegaCube series combines a prefabricated E-House with a containerized battery cabinet to form a highly integrated, factory-assembled storage system available in modular capacities such as 5 MWh and 10 MWh. All key components, internal wiring, communication configurations, and full system-level commissioning are completed under controlled conditions in the factory, ensuring optimal performance at delivery. The system is designed in compliance with leading IEC and UL standards and supports communication protocols such as Modbus and IEC 61850, enabling direct interoperability with European and North American grid and monitoring environments. No complex on-site installation or commissioning is required. After basic placement and connection, the system is ready to operate, delivering a true plug-and-play deployment experience.

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Key Advantages

Thanks to fully pre-assembled and factory-tested system modules, installation time is significantly shortened. A 5-MWh storage system can be installed within 48 hours, while a 10-MWh system requires only 72 hours. Compared with traditional on-site assembly and commissioning, total project duration is reduced by more than 80 percent, minimizing construction-related delays and enabling faster project energization.

Backed by a mature supply chain and streamlined manufacturing processes, the total lead time from order placement to delivery at European project sites does not exceed 15 weeks. This is well below industry averages and provides predictable timelines that improve overall project planning and execution efficiency.

All wiring, testing, and system integration work is completed at the factory. At the project site, only basic mechanical placement and electrical connection are required. This eliminates the need for specialized technical teams on location and significantly reduces manpower and equipment costs associated with on-site commissioning.

The system is engineered and tested according to major IEC and UL standards, as well as widely used communication protocols such as Modbus and IEC 61850. It can be integrated directly into European and North American grid infrastructures and supervisory platforms without additional adaptation, ensuring smooth market entry and compatibility.

Unlike on-site commissioning, which is affected by environmental and logistical variables, factory testing takes place in controlled conditions with stable temperature and humidity. Professional testing equipment enables comprehensive multi-scenario simulations that identify and resolve potential issues early. The system reaches optimal operating status before shipment, significantly improving long-term reliability and reducing O&M costs.

The combination of an E-House structure and modular containerized battery cabinets provides a highly integrated and easily transportable solution. It is suitable for off-grid energy storage in remote areas as well as urban peak-shaving projects. Its modularity allows flexible deployment across a wide range of operational environments.

The entire series has EU CE certification and US UL certification, and meets the additional certification requirements of European member states such as Germany VDE.

Our Service and Delivery Advantages

Global delivery lead time of 12 weeks

Worldwide service response within 72 hours

All products comply with the applicable technical standards of each market and are certified by recognized authorities such as TÜV and KEMA

MegaCube™ / ESS+E-House Set / 5MWH-2500kW

Capacity: 5 MWh
Voltage: 0.69–10.5/21/35 kV
Power: 2500 kW

The MegaCube LM-5MWh features an integrated “battery container + E-House” architecture. The PCS, dry-type or oil-immersed transformer, and RMU are pre-installed inside the E-House, while the DC bus, protection system, and SCADA are factory-wired and pre-commissioned. Fully compliant with IEC/UL standards and mainstream communication protocols (Modbus, IEC 61850), the system arrives ready for operation — requiring only basic configuration and grid connection on site. It enables rapid deployment, consistent factory-validated quality, and high reliability for C&I peak-shaving, campus-level storage, and distribution-grid flexibility. As a modular capacity unit within the MegaCube family, it maintains a clear and scalable upgrade path.

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LM-5MWH|2.5MW-0.69|10.5-35kV Technical Parameters

System Overview
Rated energy5.016 MWhRated power2.5 MW-3MW
DC Voltage1330VAC Voltage0.69 – 10.5/21/35kV
System Architecture Battery container + E-house container (PCS + transformer + RMU)Dimension6058×2438×2896  + 6058×2438×2591
Weight55tIP levelIP55 + IP54 (converter IP65)
Battery Energy Storage System
Layout1 × C173F5016
Nominal Capacity5.016 MWhCH/DCH Rate0.5/0.5 C
Nominal Voltage1330 VVoltage Range1160–1480 V
Maximal Current2160 A @VminCycle Life≥6000 cycles @80% SOH
Service Life20 yearsCharging Temperature20–50 ℃
Dimension6058×2438×2896 mmDischarging Temperature10–50 ℃
Weight43 tStorage Temperature-30–55 ℃
IP LevelIP55Relative Humidity≤95%(non-condensing)
Altitude≤3000 m
PCS
Layout2 parallel × EH‑1725‑HA‑UD
Max. DC Voltage1500 VDC Voltage Range1000–1500 V
Max. DC Current(per PCS)1936 ASystem DC Current Capability         3872 A
DC Loading Ratio56%DC Operating Margin43%
AC Output Power(per PCS)1897.5kVA@30℃, 1725kVA@45℃, 1509kVA@50℃System AC Output Power3795kVA@30℃, 3450kVA@45℃, 3018kVA@50℃
Max. AC Output Current(per PCS)1588A@30℃, 1443A@45℃, 1263A@50℃System max. AC Output Current3176A@30℃, 2886A@45℃, 2526A@50℃
Nominal AC Voltage690V,3W+PEAC Voltage Range607–759 V
Nominal Grid Frequency50/60 HzHarmonic (THD)<1.5% at 100% load
Power Factor-1 to +1Ingress Protection ratingIP65 (converter)
Max. Efficiency99%European Efficiency98.5%
CoolingForced airOperating Temperature Range-40–+60 ℃ (derating above 45 ℃)
Relative Humidity0–100% (non-condensing)Max Altitude5000 m (derating above 3000 m)
Dimension2300×1435×2350 mmWeight2800 kg
Transformer
Isolation modeDry/Oil typeRated Power3.15 MVA
LV/MV0.69/21kV (Optional: 11/35kV)Transformer VectorDyn11
RMU (Optional)
Rated Voltage24 kV3s Short‑time Withstand Current21 kA / 3 s
Rated Frequency50/60 HzPeak Making Current54.6 kA
Rated Power Freq Withstand (1 min)50/60 kVGrounding Circuit Making Current21/54.6 kA（rms/peak）
Lightning Impulse Withstand125/145 kVShort‑circuit Breaking Current21 kA
Rated Current630 AEarth Fault Current48 A
Internal Arcing LevelAFLREnclosure Protection ClassIP54/IP4X
Protection Grade of AirboxIP67GasSF6 or Eco AIr

MegaCube™ / ESS+E-House Set / 10MWH-5000kW

Capacity: 10 MWh
Voltage: 0.69–10.5/21/35 kV
Power: 5000 kW

MegaCube LM-10MWH scales up with two battery containers in parallel and multiple PCS in parallel housed inside the E-House, while the main transformer is an outdoor oil-immersed unit to accommodate higher apparent power and thermal headroom. Despite the larger rating, on-site work remains light thanks to full factory pre-assembly and testing. It targets distribution-level peak shaving, VPP participation and rapid capacity growth—maintaining drop-in compatibility with the 5 MWh module at interface and controls level.

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LM-10MWH|5MW-0.69|10.5-35kV Technical Parameters

System Overview
Rated energy10.032 MWhRated power5MW
DC Voltage1330 VAC Voltage0.69 – 10.5/21/35kV
System Architecture 2 Battery container + E-house container (PCS + RMU) + transformerDimension6058×2438×2896  + 6058×2438×2896 +6058×2438×2591 + 3420X3070X3000
Weight113tIP levelIP55 + IP54 (converter IP65)
Battery Energy Storage System
Layout2 × C173F5016
Nominal Capacity10.032 MWhCH/DCH Rate0.5/0.5 C
Nominal Voltage1330 VVoltage Range1160–1480 V
Maximal Current4320 A @VminCycle Life≥6000 cycles @80% SOH
Service Life20 yearsCharging Temperature20–50 ℃
Dimension (per Container)6058×2438×2896 mmDischarging Temperature10–50 ℃
Weight (per Container)43 tStorage Temperature-30–55 ℃
IP LevelIP55Relative Humidity≤95%(non-condensing)
Altitude≤3000 m
PCS
Layout3 parallel × EH‑2000‑HA‑UD
Max. DC Voltage1500 VDC Voltage Range1000–1500 V
Max. DC Current(per PCS)2245 ASystem DC Current Capability         6735 A
DC Loading Ratio65%DC Operating Margin35%
AC Output Power(per PCS)2200kVA@30℃, 2000kVA@45℃, 1750kVA@50℃System AC Output Power6600kVA@30℃, 6000kVA@45℃, 5250kVA@50℃
Max. AC Output Current(per PCS)1841A@30℃, 1674A@45℃, 1465A@50℃System max. AC Output Current5523A@30℃, 5022A@45℃, 4395A@50℃
Nominal AC Voltage690V,3W+PEAC Voltage Range607–759 V
Nominal Grid Frequency50/60 HzHarmonic (THD)<1.5% at 100% load
Power Factor-1 to +1Ingress Protection ratingIP65 (converter)
Max. Efficiency99%European Efficiency98.5%
CoolingForced airOperating Temperature Range-40–+60 ℃ (derating above 45 ℃)
Relative Humidity0–100% (non-condensing)Max Altitude5000 m (derating above 3000 m)
Dimension3450×1435×2350 mmWeight4200 kg
Transformer
Isolation modeOil‑immersedRated Power6.3 MVA
LV/MV0.69/21kV(Optional: 11/35kV)Transformer VectorDyn11
Overall Dimension3420X3070X3000 mmOil Typenatural ester oil
RMU (Optional)
Rated Voltage24 kV3s Short‑time Withstand Current21 kA / 3 s
Rated Frequency50/60 HzPeak Making Current54.6 kA
Rated Power Freq Withstand (1 min)50/60 kVGrounding Circuit Making Current21/54.6 kA（rms/peak）
Lightning Impulse Withstand125/145 kVShort‑circuit Breaking Current21 kA
Rated Current630 AEarth Fault Current48 A
Internal Arcing LevelAFLREnclosure Protection ClassIP54/IP4X
Protection Grade of AirboxIP67GasSF6 or Eco Air