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Eternalplanet Energy Co., Ltd

EP Cube2 UL-S-35G

Energy storage · 7 exact configurations · California, US

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A registry listing is a starting point. CEC inclusion is not nationwide installation approval. Confirm the exact model and configuration with your utility and local authority.

How to use this data

Equipment overview

11.5 kW, 35 kWh, 240 Vac energy storage system

The figures below refer to EP Cube2 UL-S-35G. Use the configuration table for other variants.

Nameplate power
11.5 kW
Nominal AC voltage
240 V AC
Nameplate energy capacity
35 kWh
Technology
Lithium Iron Phosphate
UL 1741 SB in CEC source
Reported
JA12 declaration
Y (2022)

Specifications are reported in the CEC source; SolarApprovals has not independently tested this equipment. A missing value does not mean zero or a failed certification.

Exact configurations

CEC annotations in braces identify the listed configuration and are not part of the manufacturer’s model number. Variants share this canonical page.

Exact CEC configurations for EP Cube2 UL-S-35G
CEC model / configurationNameplate powerCapacityObservationCompare
EP Cube2 UL-S-35GEnergy Storage System row 181511.5 kW35 kWhListed in CEC
EP Cube2 UL-S-35G {208V, 5kW}Energy Storage System row 18165 kW35 kWhListed in CEC
EP Cube2 UL-S-35G {208V, 6.6kW}Energy Storage System row 18176.6 kW35 kWhListed in CEC
EP Cube2 UL-S-35G {208V, 9.9kW}Energy Storage System row 18189.9 kW35 kWhListed in CEC
EP Cube2 UL-S-35G {240V, 5.8kW}Energy Storage System row 18195.8 kW35 kWhListed in CEC
EP Cube2 UL-S-35G {240V, 7.6kW}Energy Storage System row 18207.6 kW35 kWhListed in CEC
EP Cube2 UL-S-35G {240V, 9.6kW}Energy Storage System row 18219.6 kW35 kWhListed in CEC

Source specifications and conditions

Additional source information for EP Cube2 UL-S-35G. Qualifiers, reported control modes and required devices are retained as written. Power-control listings do not establish arbitrary battery/inverter pairings.

Brand
EternalPlanet
CEC listing date
2025-11-12
Source last update
2026-02-02
PV DC input capability
Y
UL 9540 certificate date
2025-09-30
UL 9540 certifying entity
TUV Rheinland
Firmware version(s) tested
No Information Submitted
UL 1741 SB certificate date
[9/30/2025]
UL 1741 SB certifying entity
TUV Rheinland
Certified JA12 control strategies
Basic, TOU
Maximum continuous discharge rate (kW)
11.5
Manufacturer-declared round-trip efficiency (%)
88.62

Use the source row references above to inspect the conditions for each other configuration.

Documented compatibility

No specific equipment pairing has been verified for this model.

Shared voltage, a hybrid designation, or the same manufacturer does not establish compatibility. Check the manufacturer’s installation documents for exact model combinations, firmware, and operating conditions.

Registry observation history

Dates show when SolarApprovals observed a status. The first observation is not the original CEC listing date. History begins with our first import.

  • Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECEP Cube2 UL-S-35G {240V, 9.6kW}
    Archived CEC source
  • Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECEP Cube2 UL-S-35G {240V, 7.6kW}
    Archived CEC source
  • Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECEP Cube2 UL-S-35G {240V, 5.8kW}
    Archived CEC source
  • Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECEP Cube2 UL-S-35G {208V, 9.9kW}
    Archived CEC source
  • Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECEP Cube2 UL-S-35G {208V, 6.6kW}
    Archived CEC source
  • Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECEP Cube2 UL-S-35G {208V, 5kW}
    Archived CEC source
  • Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECEP Cube2 UL-S-35G
    Archived CEC source