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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 dataEquipment overview
1000 kW, 2036 kWh, 600 Vac, Lithium Iron Phosphate Energy Storage system with PCS functionality.
The figures below refer to SUNSYS-HES-XXL {1000kW, 2036kWh}. Use the configuration table for other variants.
- Nameplate power
- 1,000 kW
- Nominal AC voltage
- 600 V AC
- Nameplate energy capacity
- 2,036 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.
| CEC model / configuration | Nameplate power | Capacity | Observation | Compare |
|---|---|---|---|---|
| SUNSYS-HES-XXL {1000kW, 2036kWh}Energy Storage System row 6096 | 1,000 kW | 2,036 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 2444kWh}Energy Storage System row 6099 | 1,000 kW | 2,444 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 2851kWh}Energy Storage System row 6103 | 1,000 kW | 2,851 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 3258kWh}Energy Storage System row 6108 | 1,000 kW | 3,258 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 3666kWh}Energy Storage System row 6113 | 1,000 kW | 3,666 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 4073kWh}Energy Storage System row 6116 | 1,000 kW | 4,073 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 4480kWh}Energy Storage System row 6119 | 1,000 kW | 4,480 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 2444kWh}Energy Storage System row 6100 | 1,250 kW | 2,444 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 2851kWh}Energy Storage System row 6104 | 1,250 kW | 2,851 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 3258kWh}Energy Storage System row 6109 | 1,250 kW | 3,258 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 3666kWh}Energy Storage System row 6114 | 1,250 kW | 3,666 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 4073kWh}Energy Storage System row 6117 | 1,250 kW | 4,073 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 4480kWh}Energy Storage System row 6120 | 1,250 kW | 4,480 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 4888kWh}Energy Storage System row 6122 | 1,250 kW | 4,888 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 5295kWh}Energy Storage System row 6124 | 1,250 kW | 5,295 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 5702kWh}Energy Storage System row 6126 | 1,250 kW | 5,702 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 2851kWh}Energy Storage System row 6105 | 1,500 kW | 2,851 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 3258kWh}Energy Storage System row 6110 | 1,500 kW | 3,258 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 3666kWh}Energy Storage System row 6115 | 1,500 kW | 3,666 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 4073kWh}Energy Storage System row 6118 | 1,500 kW | 4,073 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 4480kWh}Energy Storage System row 6121 | 1,500 kW | 4,480 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 4888kWh}Energy Storage System row 6123 | 1,500 kW | 4,888 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 5295kWh}Energy Storage System row 6125 | 1,500 kW | 5,295 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 5702kWh}Energy Storage System row 6127 | 1,500 kW | 5,702 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 6110kWh}Energy Storage System row 6128 | 1,500 kW | 6,110 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 6517kWh}Energy Storage System row 6129 | 1,500 kW | 6,517 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 1221kWh}Energy Storage System row 6085 | 500 kW | 1,221 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 1629kWh}Energy Storage System row 6094 | 500 kW | 1,629 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 2036kWh}Energy Storage System row 6097 | 500 kW | 2,036 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 2444kWh}Energy Storage System row 6101 | 500 kW | 2,444 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 2851kWh}Energy Storage System row 6106 | 500 kW | 2,851 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 3258kWh}Energy Storage System row 6111 | 500 kW | 3,258 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {750kW, 1629kWh}Energy Storage System row 6095 | 750 kW | 1,629 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {750kW, 2036kWh}Energy Storage System row 6098 | 750 kW | 2,036 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {750kW, 2444kWh}Energy Storage System row 6102 | 750 kW | 2,444 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {750kW, 2851kWh}Energy Storage System row 6107 | 750 kW | 2,851 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {750kW, 3258kWh}Energy Storage System row 6112 | 750 kW | 3,258 kWh | Listed in CEC |
Source specifications and conditions
Additional source information for SUNSYS-HES-XXL {1000kW, 2036kWh}. Qualifiers, reported control modes and required devices are retained as written. Power-control listings do not establish arbitrary battery/inverter pairings.
- Brand
- Socomec
- CEC listing date
- 2025-06-23
- Source last update
- 2025-08-21
- PV DC input capability
- Y
- UL 9540 certificate date
- 2025-05-09
- UL 9540 certifying entity
- TUV Rheinland of North America
- Firmware version(s) tested
- [fe924e5]
- UL 1741 SB certificate date
- [3/4/2024]
- UL 1741 SB certifying entity
- TUV Rheinland
- Certified JA12 control strategies
- Basic, TOU, Advance DR
- Maximum continuous discharge rate (kW)
- 1000
- Manufacturer-declared round-trip efficiency (%)
- 88
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 CECSUNSYS-HES-XXL {1500kW, 6517kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1500kW, 6110kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1500kW, 5702kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1250kW, 5702kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1500kW, 5295kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1250kW, 5295kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1500kW, 4888kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1250kW, 4888kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1500kW, 4480kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1250kW, 4480kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1000kW, 4480kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1500kW, 4073kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1250kW, 4073kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1000kW, 4073kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1500kW, 3666kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1250kW, 3666kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1000kW, 3666kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {750kW, 3258kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {500kW, 3258kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1500kW, 3258kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1250kW, 3258kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1000kW, 3258kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {750kW, 2851kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {500kW, 2851kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1500kW, 2851kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1250kW, 2851kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1000kW, 2851kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {750kW, 2444kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {500kW, 2444kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1250kW, 2444kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1000kW, 2444kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {750kW, 2036kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {500kW, 2036kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {1000kW, 2036kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {750kW, 1629kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {500kW, 1629kWh}
Archived CEC source - Sep 21, 2026 · California Energy CommissionFirst observed: Listed in CECSUNSYS-HES-XXL {500kW, 1221kWh}
Archived CEC source