EP Cube2 UL-S-25G

Equipment overview

ESS with Additional Devices

The figures below refer to EP Cube2 UL-S-25G {240V, 11.5kW}. Use the configuration table for other variants.

Controlled apparent power

34.5* kVA

Operating voltage

240 V

PCS functionality

ESS

Technology

Not reported

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.

Source specifications and conditions

Additional source information for EP Cube2 UL-S-25G {240V, 11.5kW}. Qualifiers, reported control modes and required devices are retained as written. Power-control listings do not establish arbitrary battery/inverter pairings.

Source notes

*The reflected values are the highest Maximum Continuous Current and Maximum Continuous Power that the inlcuded gateway can control when multiple inputs are utilized.

Equipment type

ESS

CEC listing date

2026-08-03

Export-only mode

Y

Import-only mode

Y

No-exchange mode

N

Unrestricted mode

N

Phase configuration

Single

PCS CRD document date

2026-06-03

PCS CRD issuing entity

TUV Rheinland of North America

Additional required devices

Smart Gateway (SGNA2-200G1 or SGNA2-200G2, with built-in CT) for both Whole-Home and Partial-Home Backup (add External CT, ECSL24200-2-C2, for Partial-Home Backup).

Output voltage as reported (V)

240

Export-only response time (seconds)

1.948

Import-only response time (seconds)

1.868

No-exchange response time (seconds)

N/A

Current measurement reference points

Inverter, Gateway, External CT

Unrestricted response time (seconds)

N/A

Maximum apparent power as reported (kVA)

34.5*

Maximum continuous current as reported (A)

144*

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-25G {240V, 9.6kW}
  Archived CEC source
• Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECEP Cube2 UL-S-25G {240V, 7.6kW}
  Archived CEC source
• Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECEP Cube2 UL-S-25G {240V, 5.8kW}
  Archived CEC source
• Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECEP Cube2 UL-S-25G {240V, 11.5kW}
  Archived CEC source