i
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 6182 | 1,000 kW | 2,036 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 2444kWh}Energy Storage System row 6185 | 1,000 kW | 2,444 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 2851kWh}Energy Storage System row 6189 | 1,000 kW | 2,851 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 3258kWh}Energy Storage System row 6194 | 1,000 kW | 3,258 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 3666kWh}Energy Storage System row 6199 | 1,000 kW | 3,666 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 4073kWh}Energy Storage System row 6202 | 1,000 kW | 4,073 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1000kW, 4480kWh}Energy Storage System row 6205 | 1,000 kW | 4,480 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 2444kWh}Energy Storage System row 6186 | 1,250 kW | 2,444 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 2851kWh}Energy Storage System row 6190 | 1,250 kW | 2,851 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 3258kWh}Energy Storage System row 6195 | 1,250 kW | 3,258 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 3666kWh}Energy Storage System row 6200 | 1,250 kW | 3,666 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 4073kWh}Energy Storage System row 6203 | 1,250 kW | 4,073 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 4480kWh}Energy Storage System row 6206 | 1,250 kW | 4,480 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 4888kWh}Energy Storage System row 6208 | 1,250 kW | 4,888 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 5295kWh}Energy Storage System row 6210 | 1,250 kW | 5,295 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1250kW, 5702kWh}Energy Storage System row 6212 | 1,250 kW | 5,702 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 2851kWh}Energy Storage System row 6191 | 1,500 kW | 2,851 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 3258kWh}Energy Storage System row 6196 | 1,500 kW | 3,258 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 3666kWh}Energy Storage System row 6201 | 1,500 kW | 3,666 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 4073kWh}Energy Storage System row 6204 | 1,500 kW | 4,073 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 4480kWh}Energy Storage System row 6207 | 1,500 kW | 4,480 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 4888kWh}Energy Storage System row 6209 | 1,500 kW | 4,888 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 5295kWh}Energy Storage System row 6211 | 1,500 kW | 5,295 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 5702kWh}Energy Storage System row 6213 | 1,500 kW | 5,702 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 6110kWh}Energy Storage System row 6214 | 1,500 kW | 6,110 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {1500kW, 6517kWh}Energy Storage System row 6215 | 1,500 kW | 6,517 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 1221kWh}Energy Storage System row 6171 | 500 kW | 1,221 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 1629kWh}Energy Storage System row 6180 | 500 kW | 1,629 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 2036kWh}Energy Storage System row 6183 | 500 kW | 2,036 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 2444kWh}Energy Storage System row 6187 | 500 kW | 2,444 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 2851kWh}Energy Storage System row 6192 | 500 kW | 2,851 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {500kW, 3258kWh}Energy Storage System row 6197 | 500 kW | 3,258 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {750kW, 1629kWh}Energy Storage System row 6181 | 750 kW | 1,629 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {750kW, 2036kWh}Energy Storage System row 6184 | 750 kW | 2,036 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {750kW, 2444kWh}Energy Storage System row 6188 | 750 kW | 2,444 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {750kW, 2851kWh}Energy Storage System row 6193 | 750 kW | 2,851 kWh | Listed in CEC | |
| SUNSYS-HES-XXL {750kW, 3258kWh}Energy Storage System row 6198 | 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