Absen Energy

Cube 72

Industrial & CommercialAC Block

Updated Sep 23, 2026

Industrial & CommercialAC BlockUpdated Sep 23, 2026

For commercial and industrial use, Absen Energy Cube 72 is an AC block battery energy storage system with 72 kWh nominal energy. It has air cooling and 314 Ah prismatic cells. The system weighs 750 kg (1,653 lb).

Use Cases

Use behind the meter is consistent with the specifications of Absen Energy Cube 72. Its nominal energy places it in the commercial and industrial size class, and it connects at 380 V, a low-voltage AC connection, which points to use at a customer's own premises.

Capabilities

Its AC block includes the inverter, which makes Absen Energy Cube 72 a candidate for renewable colocation, storing output from a wind or solar plant on the same site. It holds about 2.4 h of storage at full power, calculated from 72 kWh and 30 kW, and points to capacity value, standing in as firm capacity when demand peaks.

Nominal energy

0.07MWh

Rated AC power

0.03MW

What does this system typically cost?

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Energy & Power

Nominal energy
0.07MWh
Rated AC power
0.03MW

Architecture

Installation
Outdoor-capable

DC Side

DC voltage range
201.6 – 259.2 V

AC Side

AC voltage
380 V
AC voltage parameters
3L+N+PE
Rated AC current
45.6/43.3 A
Grid frequency
50 Hz / 60 Hz

Physical & Footprint

Dimensions (W × D × H)
600 × 1,470 × 1,750mm
Weight
0.75t

Battery Cells

Cell capacity
314 Ah
Cell format
Prismatic

Lifespan

Cycle life
8,000 cycles
Cycle-life conditions
70%SOH, 90%DOD, 25℃

Protection

Enclosure protection
IP54
Fire & safety
Aerosol

Full Specification Sheet

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Plant Round-Trip Efficiency

Duration
energy ÷ power 2.33 h
0.43C
—
State of health
new system
as-new
—
DC block
typical @2.3 h
round trip @ 2.3 h
94 %
PCS (DC/AC)
typical default
each way
97.02 %
Transformer LV/MV
typical default
each way
98.01 %
Transformer MV/HV
typical default
each way
98.01 %
Cables (all segments)
typical default
each way
98.8 %
Auxiliary power (plant's own consumption)
typical default
−4.3 pts
Plant Round-Trip Efficiency at the Point of Interconnection
82.2 %
40 %100 %
1.216MWh charged for every 1 MWh discharged
Both measured at the grid connection point. The plant's own power use is already included in the losses.

The calculator estimates the full "plant" round-trip efficiency (RTE) at the point of interconnection. Some values are pre-blocked depending on information on a particular ESS. The rows that are marked "each way" are one-way efficiencies; they are applied on charge and again on discharge. We then square them. To enter a bundled PCS efficiency value, use its rated-power value, not peak. If the PCS skid already includes the LV/MV transformer, set Transformer LV/MV to 100 % so those losses are not counted twice.

Site Space Required

single unit clearance 3 m / side
49.3m² total site area · 1 × 1
531 ft²0.0049 ha0.012 acres704.3 m² / MWh7,581 ft² / MWh
Unit W × D
0.6 × 1.47 m
1.97 × 4.82 ft
Site envelope
6.6 × 7.47 m
21.65 × 24.51 ft
Per unit
49.3 m²
Installed energy
0.07 MWh
1 × nameplate
Units1
Per row1
Clearance between unitsShared

Shared: one 3 m aisle serves both neighbours. Dedicated: each unit keeps its own 3 m, so gaps double to 6 m.

Clearance allowance
6m per axis · 3 m per side
19.69 ft per axis · 9.84 ft per side

Single unit — matches the stored area_sqm convention.

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Absen Energy
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About the Vendor

Absen EnergyTier-2Listed Company

Absen Energy entered energy storage in 2023 by setting up Ruidian Green Energy Technology Co., Ltd., a majority-owned Absen (300389) company. Based in Shenzhen, China, it runs two R&D centers and a 26,000-square-meter plant with annual capacity above 2.5 GWh, and it makes storage systems for residential, commercial, industrial, and grid use.

Production scale2-20 GWh
Company sizeSmall (1-300)
Vertical integrationMinimal
BankabilityOverall Positive

How to Read the Product Page

This profile of Cube 72 by Absen Energy is assembled exclusively from public data to support early-stage screening and requires additional due diligence.

Always confirm these terms and technical specifications directly with the vendor and project stakeholders. Reflect all agreed-upon details in the legal agreements before making any investment decisions.

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