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1848844-XX-Y

Energy storage · 4 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

50 kW, 163.2 kWh, 480 Vac Lithium-Ion Energy Storage System (Megapack 2 XL), where xx are numbers and y is a letter. 4 hour system based on 163.2 kWh energy capacity and 40.8 kW max discharge rate. Energy storage system with PCS functionality.

The figures below refer to 1848844-XX-Y {163 kWh, 4hr}. Use the configuration table for other variants.

Nameplate power
50 kW
Nominal AC voltage
480 V AC
Nameplate energy capacity
163.2 kWh
Technology
Lithium Ion
UL 1741 SB in CEC source
Reported
JA12 declaration
N

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 1848844-XX-Y
CEC model / configurationNameplate powerCapacityObservationCompare
1848844-XX-Y {163 kWh, 4hr}Energy Storage System row 660350 kW163.2 kWhListed in CEC
1848844-XX-Y {179kWh, 4hr}Energy Storage System row 660850 kW179.2 kWhListed in CEC
1848844-XX-Y {2hr}Energy Storage System row 660150 kW160.6 kWhListed in CEC
1848844-XX-Y {3hr}Energy Storage System row 659950 kW160.3 kWhListed in CEC

Source specifications and conditions

Additional source information for 1848844-XX-Y {163 kWh, 4hr}. Qualifiers, reported control modes and required devices are retained as written. Power-control listings do not establish arbitrary battery/inverter pairings.

CEC listing date
2022-10-21
Source last update
2026-03-11
PV DC input capability
N
UL 9540 certificate date
2022-09-06
UL 9540 certifying entity
TUV Rheinland of North America
Firmware version(s) tested
No Information Submitted
UL 1741 SB certificate date
[11/14/2025]
UL 1741 SB certifying entity
TUV Rheinland of North America
Certified JA12 control strategies
No Information Submitted
Maximum continuous discharge rate (kW)
40.8
Manufacturer-declared round-trip efficiency (%)
No Information Submitted

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 CEC1848844-XX-Y {179kWh, 4hr}
    Archived CEC source
  • Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CEC1848844-XX-Y {163 kWh, 4hr}
    Archived CEC source
  • Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CEC1848844-XX-Y {2hr}
    Archived CEC source
  • Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CEC1848844-XX-Y {3hr}
    Archived CEC source