Hoenergy

D-Cube-H125/261

Industrial & CommercialAC Block

Updated Aug 28, 2026

Industrial & CommercialAC BlockUpdated Aug 28, 2026

Hoenergy D-Cube-H125/261 is an LFP battery energy storage system for commercial and industrial use with 261.24 kWh nominal energy. It is supplied as an AC block with liquid or fan cooling and uses 314 Ah prismatic cells. The system weighs 2.62 tonnes (5,776 lb) and has a 754 to 949 V DC window.

Use Cases

Use behind the meter is consistent with the specifications of Hoenergy D-Cube-H125/261. It belongs to the commercial and industrial class by energy capacity. It connects at 400 V, a low-voltage AC connection.

Capabilities

Its AC block includes the inverter, which points to renewable colocation, sitting next to a wind or solar plant and sharing its grid connection. Hoenergy D-Cube-H125/261 holds about 2.09 h of storage at full power, calculated from 261.24 kWh and 125 kW, which points to capacity value, standing in as firm capacity when demand peaks.

Nominal energy

0.26MWh

Rated AC power

0.13MW

What does this system typically cost?

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Energy & Power

Nominal energy
0.26MWh
Rated AC power
0.13MW

Architecture

Installation
Outdoor-capable

DC Side

Nominal DC voltage
832 V
DC voltage range
754 – 949 V

AC Side

AC voltage
400 V
AC voltage parameters
3/N/PE
Rated AC current
189.9 A
Grid frequency
50 Hz / 60 Hz

Physical & Footprint

Dimensions (W × D × H)
1,180 × 1,800 × 2,200mm
Weight
2.62t

Battery Cells

Chemistry
LFP
Cell capacity
314 Ah
Cell format
Prismatic
Cell supplier
Hoenergy (in-house)

Lifespan

Protection

Enclosure protection
IP55
Corrosion protection
C4
Fire & safety
Pack aerosol

Full Specification Sheet

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Plant Round-Trip Efficiency

Duration
energy ÷ power 2 h
0.5C
—
State of health
new system
as-new
—
DC block
typical @2 h
round trip @ 2 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
56m² total site area · 1 × 1
603 ft²0.0056 ha0.014 acres215.4 m² / MWh2,319 ft² / MWh
Unit W × D
1.18 × 1.8 m
3.87 × 5.91 ft
Site envelope
7.18 × 7.8 m
23.56 × 25.59 ft
Per unit
56 m²
Installed energy
0.26 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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About the Vendor

HoenergyTier-1Private Company

Founded in 2021 and based in Shanghai, Hoenergy makes BESS for commercial, industrial, and grid uses, with in-house BMS, PCS, EMS, and system integration. Its projects include frequency regulation, advanced materials manufacturing, shipbuilding, electronic materials, the Czech Republic, and industrial bakery sites, with at least 71.3 MWh deployed, including a 100 MW/50.43 MWh frequency regulation system.

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

How to Read the Product Page

This profile of D-Cube-H125/261 by Hoenergy 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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