PotisEdge

PotisBank-L3.7-1500

Grid-ScaleDC BlockContainerized

Updated Aug 28, 2026

Grid-ScaleDC BlockContainerizedUpdated Aug 28, 2026

PotisEdge PotisBank-L3.7-1500 is a containerized LFP battery energy storage system supplied as a DC block with 3.7 MWh nominal energy. It uses liquid cooling, has 94% DC round-trip efficiency, and uses 280 Ah prismatic cells. The unit weighs 36.5 tonnes (80,469 lb).

Use Cases

Use in front of the meter is consistent with the specifications of PotisEdge PotisBank-L3.7-1500. By energy capacity, it belongs to the utility-scale class. It supports IEC61850 and IEC104, used in utility control systems.

Capabilities

A separate inverter connecting its DC block makes PotisEdge PotisBank-L3.7-1500 a candidate for renewable colocation, sitting next to a wind or solar plant and sharing its grid connection. Its 1P rating points to peak shaving, discharging into the hours of highest demand. The specifications suggest grid services, support for the operation of the electricity network.

Nominal energy

3.7MWh

C / P rate

0.5–1P

Round-trip efficiency (AC)

94 %DC

What does this system typically cost?

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Energy & Power

Nominal energy
3.7MWh
C / P rate
0.5–1 P
Round-trip efficiency (DC)
94 %

Architecture

Installation
Outdoor-capable

DC Side

Nominal DC voltage
1,331.2 V
DC voltage range
1,164.8 – 1,500 V

AC Side

Physical & Footprint

Dimensions (W × D × H)
6,058 × 2,438 × 2,896mm
Weight
36.5t

Battery Cells

Chemistry
LFP
Cell capacity
280 Ah
Cell format
Prismatic
Cell supplier
PotisEdge (in-house)

Lifespan

Protection

Enclosure protection
IP55
Corrosion protection
C4C5
Fire & safety
Perfluorohexanone/Heptafluoropropane+ water spray

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
rte_dc 94 % @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
101.7m² total site area · 1 × 1
1,095 ft²0.0102 ha0.025 acres27.5 m² / MWh296 ft² / MWh
Unit W × D
6.06 × 2.44 m
19.88 × 8 ft
Site envelope
12.06 × 8.44 m
39.56 × 27.68 ft
Per unit
101.7 m²
Installed energy
3.7 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

PotisEdgeTier-1Listed Company

Founded in 2015, PotisEdge is an energy storage system maker based in Suzhou High-tech Zone, Jiangsu, China. It makes ESS products for residential, commercial and industrial, and utility-scale use, and BloombergNEF has listed it as a Tier 1 global energy storage maker five times in a row, including under the upgraded 2025 assessment standards.

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

How to Read the Product Page

This profile of PotisBank-L3.7-1500 by PotisEdge 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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