Corun

KBES400-186/372

Industrial & CommercialDC Block

Updated Aug 27, 2026

Industrial & CommercialDC BlockUpdated Aug 27, 2026

Corun KBES400-186/372 is a commercial and industrial battery energy storage system with 372.7 kWh nominal energy, supplied as a DC block. It weighs 4 tonnes (8,818 lb), which gives project teams a direct mass figure for equipment planning.

Use Cases

The specifications of Corun KBES400-186/372 suggest use behind the meter inside a customer's own electrical installation. Its energy capacity is within the commercial and industrial range.

Capabilities

For Corun KBES400-186/372, the specifications suggest renewable colocation, storing output from a wind or solar plant on the same site. Its DC block connects through a separate inverter.

Nominal energy

0.37MWh

What does this system typically cost?

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Energy & Power

Nominal energy
0.37MWh

Architecture

Installation
Outdoor-capable

DC Side

AC Side

Auxiliary power
450W standby

Physical & Footprint

Dimensions (W × D × H)
1,489 × 1,311 × 2,500mm
Weight
4t

Battery Cells

Cell supplier
Corun (in-house)

Lifespan

Protection

Enclosure protection
IP54

Full Specification Sheet

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Plant Round-Trip Efficiency

Duration
typical default
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
54.8m² total site area · 1 × 1
589 ft²0.0055 ha0.014 acres148 m² / MWh1,593 ft² / MWh
Unit W × D
1.49 × 1.31 m
4.89 × 4.3 ft
Site envelope
7.49 × 7.31 m
24.57 × 23.99 ft
Per unit
54.8 m²
Installed energy
0.37 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.

More Corun Systems

3
CompareLogoVendorSystemEnergyPowerDurationBattery CellOpen
Corun6.7MWh———
Corun5MWh——flex—
Corun
KBES400-186/372DC Block
0.37MWh———

About the Vendor

CorunTier-2Listed Company

Founded in 1998 and listed on China’s A-share market in 2003, Hunan Corun New Energy Co., Ltd. is based in Hunan and works in battery materials, batteries and management systems, energy storage systems, and recycling. The Yichun Liyuan project supports production, R&D, and system integration for 3 GWh of energy storage systems and new energy storage batteries.

Production scale2-20 GWh
Company sizeMiddle (300-1000)
Vertical integrationHigh
BankabilityNeutral

How to Read the Product Page

This profile of KBES400-186/372 by Corun 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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