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Hybrid inverterSigenergy

Sigenergy SigenStor EC 7.6 SP US

Name: Sigenergy SigenStor EC 7.6 SP US
Brand: Sigenergy

Hybrid inverter, dc-coupled hybrid (pv + battery). 4 models, 4.8 kW–9.6 kW AC at 240 V.

UL 1741 SBCEC listed · Aug 21, 2025

Model

Rated AC power7.6 kW
CEC weighted efficiency97.0%

Models & power ratings

CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library · 4 models

Model	Nominal AC	Grid voltage	CEC continuous	Rated AC (SAM)	CEC weighted eff.	DC test window	CEC listed	UL 1741 SB
SigenStor EC 4.8 SP US	4.8 kW	240 V	4.81 kW	4.81 kW	97.0%	270–480 V	Aug 21, 2025	SB
SigenStor EC 5.7 SP US	5.7 kW	240 V	5.78 kW	5.78 kW	97.0%	270–480 V	Aug 21, 2025	SB
SigenStor EC 7.6 SP US	7.6 kW	240 V	7.65 kW	7.65 kW	97.0%	270–480 V	Aug 21, 2025	SB
SigenStor EC 9.6 SP US	9.6 kW	240 V	9.65 kW	9.65 kW	97.0%	270–480 V	Aug 21, 2025	SB

Some models are also on the CEC Battery Inverter list — one product, two listings.

DC input (PV side)

CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library

CEC test DC voltages (min / nom / max)270 / 360 / 480 V
DC input at rated output (CEC test)7.89 kW

Efficiency

CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library

CEC weighted efficiency97.0%
Night-time standby (tare)3.3 W
Power to start converting18.1 W

CEC weighted efficiency is measured by an accredited lab at six power levels and three DC voltages — the number to compare between inverters.

Grid & smart-inverter certification

CEC Grid Support Inverter List (Oct 7, 2026)

UL 1741 SB (3rd ed.)Yes — CSA Group, certificate Jun 19, 2025
UL 1741 SA (SA8–SA13)No
Volt-VAr with reactive power priority (SA13)No
Freq-Watt / Volt-Watt (SA14–15)No
Disable permit service / limit active power (SA17–18)No
CSIP (IEEE 2030.5) conformanceVia gateway during testing (Y*)
Monitor key data & scheduling (Rule 21 Phase 3)Yes (attested Aug 21, 2025)
CEC listedAug 21, 2025

UL 1741 SB is required for new interconnections in California (Rule 21) since 2026.

Panel compatibility & string sizing

NLR SAM inverter library · NLR PVWatts v8 · CEC PV Module List · Cali-Graf calculation

CityColdest air, °CHottest cell, °C

SigenStor EC 7.6 SP US: max DC 480 V · MPPT 270–480 V (CEC test window)

Most-permitted panels in Southern California

Panel	Power	Voc cold	Vmp hot	Panels per string	Installed together
Qcells Q.PEAK DUO BLK ML-G10.C+ 410	410 W	48.1 V	30.6 V	9–9	—
Qcells Q.PEAK DUO BLK ML-G10+ 410	410 W	48.1 V	30.6 V	9–9	—
LONGi LR5-54HABB-400M	400 W	39.3 V	25.3 V	11–12	—
JA Solar JAM54S31-405/MR	405 W	39.4 V	25.5 V	11–12	—
Hyundai Solutions HiN-T440NF(BK)	440 W	40.9 V	27 V	10–11	—
Silfab Solar SIL-440QD	440 W	41.1 V	28 V	10–11	—
Qcells Q.TRON BLK M-G2+ 430	430 W	41.3 V	28 V	10–11	—
Qcells Q.TRON BLK M-G2.H+ 430	430 W	41.3 V	28 V	10–11	—
REC Group REC460AA Pure-RX	460 W	68.8 V	47.1 V	6–6	—
Elin (Sirius PV) ELNSM54M-HC-410	410 W	39.3 V	25.3 V	11–12	—
Qcells Q.TRON BLK M-G2.C+ 430	430 W	41.3 V	28 V	10–11	—
Tesla TSP-420	420 W	43.4 V	27.7 V	10–11	—

Voltage check only, from CEC panel data and NLR weather for the city. Final design must follow the inverter manual and NEC 690.7.

Compare with similar 7.6 kW inverters

CEC Grid Support Inverter List (Oct 7, 2026) · building permits

Inverter	Power	CEC weighted eff.	DC test window	UL 1741 SB	Latest CEC	SoCal permits
Sigenergy SigenStor EC x.x SP US	4.8 kW–9.6 kW	97.0%	270–480 V	Yes	2025	0
SolarEdge SExxxxH-US	3 kW–11.4 kW	99.0%	360–480 V	Yes	2025	1,046
Delta Electronics Ex-TL-US	3.33 kW–9.6 kW	97.5%	200–480 V	Yes	2022	28
Qcells Q.VOLT Hx.xSX	3.8 kW–7.6 kW	97.5%	175–500 V	Yes	2023	25
SolarEdge SExxxxxA-US	3.8 kW–11.4 kW	98.0%	320–500 V	No	2024	18

Same type and grid voltage, power range covering this model; same fields from the same sources.

Approved in other markets

Clean Energy Council (Australia)

Model	Approved	Expires	Standards
SigenStor EC 10.0 SP AU	Mar 4, 2025	Mar 4, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020
SigenStor EC 10.0 TP AU	Apr 7, 2025	Apr 7, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020
SigenStor EC 12.0 SP AU	Mar 4, 2025	Mar 4, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020
SigenStor EC 12.0 TP AU	Apr 7, 2025	Apr 7, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020
SigenStor EC 15.0 TP AU	Apr 7, 2025	Apr 7, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020
SigenStor EC 17.0 TP AU	Apr 7, 2025	Apr 7, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020
SigenStor EC 20.0 TP AU	Apr 7, 2025	Apr 7, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020
SigenStor EC 25.0 TP AU	Apr 7, 2025	Apr 7, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020
SigenStor EC 3.0 SP	Aug 18, 2025	Aug 18, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020
SigenStor EC 30.0 TP AU	Apr 7, 2025	Apr 7, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020
SigenStor EC 5.0 SP	Aug 18, 2025	Aug 18, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020
SigenStor EC 5.0 TP AU	Apr 7, 2025	Apr 7, 2028	IEC 62109.1;IEC 62109.2;AS/NZS 4777.2:2020

About Sigenergy

CEC Grid Support Inverter List (Oct 7, 2026)

ManufacturerSigenergy
Listed in CEC asSigenergy Technology Co., Ltd.
Models on CEC lists154

Other series

SigenStor EC SP US

Questions & answers

How efficient is the Sigenergy SigenStor EC x.x SP US?

The California Energy Commission lists a weighted efficiency of 97.0% for Sigenergy SigenStor EC x.x SP US models, measured at six power levels and three DC voltages.

What sizes does the Sigenergy SigenStor EC x.x SP US come in?

The CEC list includes 4 models from 4.8 kW to 9.6 kW AC: SigenStor EC 4.8 SP US, SigenStor EC 5.7 SP US, SigenStor EC 7.6 SP US, SigenStor EC 9.6 SP US.

Is the Sigenergy SigenStor EC x.x SP US certified to UL 1741 SB?

Yes — the CEC Grid Support Inverter List shows UL 1741 SB for all models.

Can the Sigenergy SigenStor EC x.x SP US be used with a battery?

The CEC lists it as a dc-coupled hybrid (pv + battery).

What is the SigenStor EC 7.6 SP US’s DC input voltage range?

CEC tested it at 270–480 V DC.

Sources

California Energy Commission — Grid Support Inverter List (solar and battery inverters), data as of Oct 7, 2026. Manufacturer-reported, confirmed by CEC against certificates and test reports.
NLR (formerly NREL) — System Advisor Model CEC inverter library (version 2026.7.3).
Clean Energy Council (Australia) — approved inverter list (as of Oct 8, 2026).
NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Riverside, Santa Clarita, Chula Vista, Huntington Beach.
California Energy Commission — PV Module List (module electrical data for the compatibility check).
Building permits — Southern California permit portals. Equipment matched from permit descriptions.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).