SOCOMEC SUNSYS-HES-L-C05

203.7–1,222 kWh · 50–600 kW · Lithium Iron Phosphate · 32 configurations

UL 9540UL 1741 SBCEC listed · Apr 11, 2025

Nameplate energy203.7–1,222 kWh
Continuous power50–600 kW
Round trip (AC)0.9%
ChemistryLithium Iron Phosphate

Overview

CEC Energy Storage System List

SUNSYS-HES-L-C05: 203.7–1,222 kWh nameplate energy; 50–600 kW continuous; lithium iron phosphate.

Models & configurations

CEC Energy Storage System List · 32 listings

Model	Energy	Power	Grid voltage	Round trip	CEC listed
SUNSYS-HES-L-C05 {50kW, 203.7kWh}	203.7 kWh	50 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {100kW, 203.7kWh}	203.7 kWh	100 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {50kW, 407.3kWh}	407.3 kWh	50 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {100kW, 407.3kWh}	407.3 kWh	100 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {150kW, 407.3kWh}	407.3 kWh	150 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {200kW, 407.3kWh}	407.3 kWh	200 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {100kW, 611kWh}	611 kWh	100 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {150kW, 611kWh}	611 kWh	150 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {200kW, 611kWh}	611 kWh	200 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {250kW, 611kWh}	611 kWh	250 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {300kW, 611kWh}	611 kWh	300 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {150kW, 814.7kWh}	814.7 kWh	150 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {200kW, 814.7kWh}	814.7 kWh	200 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {250kW, 814.7kWh}	814.7 kWh	250 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {300kW, 814.7kWh}	814.7 kWh	300 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {350kW, 814.7kWh}	814.7 kWh	350 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {400kW, 814.7kWh}	814.7 kWh	400 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {200kW, 1018.4kWh}	1,018.4 kWh	200 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {250kW, 1018.4kWh}	1,018.4 kWh	250 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {300kW, 1018.4kWh}	1,018.4 kWh	300 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {350kW, 1018.4kWh}	1,018.4 kWh	350 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {400kW, 1018.4kWh}	1,018.4 kWh	400 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {450kW, 1018.4kWh}	1,018.4 kWh	450 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {500kW, 1018.4kWh}	1,018.4 kWh	500 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {250kW, 1222kWh}	1,222 kWh	250 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {300kW, 1222kWh}	1,222 kWh	300 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {350kW, 1222kWh}	1,222 kWh	350 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {400kW, 1222kWh}	1,222 kWh	400 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {450kW, 1222kWh}	1,222 kWh	450 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {500kW, 1222kWh}	1,222 kWh	500 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {550kW, 1222kWh}	1,222 kWh	550 kW	480 V	1%	Apr 11, 2025
SUNSYS-HES-L-C05 {600kW, 1222kWh}	1,222 kWh	600 kW	480 V	1%	Apr 11, 2025

Capacity & power

CEC Energy Storage System List

Nameplate energy (CEC)203.7–1,222 kWh
Rated power (CEC)50–600 kW
Max continuous discharge (CEC)50–600 kW
Full-power discharge timeabout 2 h at full power
Round-trip efficiency (AC-AC)0.9%
ChemistryLithium Iron Phosphate
Grid connection480 V

Safety listings

CEC Energy Storage System List

UL 9540 (energy storage system)Certified by TUV Rheinland of North America
Certificate date & editionDec 24, 2024 · Ed. 3 : 2023

UL 9540 certifies the whole storage system; UL 9540A is the fire-propagation test that fire codes ask for indoors and near walls.

California grid & code compliance

CEC Energy Storage System List

UL 1741 SB (IEEE 1547-2018)Yes
UL 1741 SA (Rule 21)Yes
CSIP (IEEE 2030.5)Yes (with conditions)
JA12 declaration (Title 24)Yes
JA12 control strategiesBasic, TOU, Advanced DR
Last CEC updateMay 1, 2025
Monitor Key Data schedulingYes

Questions & answers

How much energy does the SOCOMEC SUNSYS-HES-L-C05 store?

203.7–1,222 kWh nameplate, per the California Energy Commission list.

Is the SUNSYS-HES-L-C05 UL 9540 certified?

Yes — the CEC list shows UL 9540 certification (certified by tuv rheinland of north america).

Sources

California Energy Commission — Energy Storage System List, data as of Oct 7, 2026. Manufacturer-reported values confirmed by CEC against certificates.