Qcells Q.VOLT A6.0SX

Name: Qcells Q.VOLT A6.0SX
Brand: Qcells

Battery inverter, ac-coupled battery inverter. 4 models, 3.8 kW–7.6 kW AC at 240 V.

UL 1741 SBCEC listed · Mar 13, 2023

Model

Rated AC power6 kW
CEC weighted efficiency96.0%

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
Q.VOLT A3.8SX	3.8 kW	240 V	3.81 kW	3.81 kW	95.0%	76–450 V	Mar 13, 2023	SB
Q.VOLT A5.0SX	5 kW	240 V	5.03 kW	5.03 kW	96.0%	100–450 V	Mar 13, 2023	SB
Q.VOLT A6.0SX	6 kW	240 V	6.04 kW	6.04 kW	96.0%	121–450 V	Mar 13, 2023	SB
Q.VOLT A7.6SX	7.6 kW	240 V	7.6 kW	7.6 kW	96.5%	150–450 V	Mar 13, 2023	SB

Efficiency

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

CEC weighted efficiency96.0%
Night-time standby (tare)1.2 W
Power to start converting37 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 Apr 12, 2024
UL 1741 SA (SA8–SA13)Yes — CSA Group
Volt-VAr with reactive power priority (SA13)Yes
Freq-Watt / Volt-Watt (SA14–15)Yes
Disable permit service / limit active power (SA17–18)Yes
CSIP (IEEE 2030.5) conformanceVia gateway during testing (Y*)
Monitor key data & scheduling (Rule 21 Phase 3)Yes (attested Apr 3, 2023)
Power control system (PCS)Stated in CEC listing (power control system)
CEC listedMar 13, 2023
Last CEC updateJun 3, 2024

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

Battery & storage pairings

CEC Energy Storage System List

CEC-certified storage systems that include it

System	Energy	Power	Chemistry	CEC listed
Qcells North America Q.HOME CORE A7S 7.6/10.0X	10 kWh	7.6 kW	Lithium Ion	Apr 3, 2023
Qcells North America Q.HOME CORE A7S 7.6/15.0X	15 kWh	7.6 kW	Lithium Ion	Apr 3, 2023
Qcells North America Q.HOME CORE A7S 7.6/20.0X	20 kWh	7.6 kW	Lithium Ion	Apr 3, 2023

Compare with similar 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
Qcells Q.VOLT Ax.xSX	3.8 kW–7.6 kW	96.0%	121–450 V	Yes	2023	0
GoodWe GWxxxxA-BP	5 kW–9.6 kW	96.5%	200–495 V	Yes	2021	1
FOXESS AIO-AC1-x.x-US	3.8 kW–11.4 kW	97.0%	85–500 V	Yes	2025	—
APsystems (Altenergy Power System) ELS	6.61 kW–11.4 kW	94.0%	51–60 V	Yes	2024	—
Hoymiles HAS-x.xLV-USG1	3.8 kW–11.5 kW	94.0%	50–60 V	Yes	2024	—

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

About Qcells

CEC Grid Support Inverter List (Oct 7, 2026)

ManufacturerQcells
Listed in CEC asQcells North America
Parent companyHanwha
Websiteq-cells.com
Models on CEC lists1504

Other series

Q.HOME+ AC-G1

Questions & answers

How efficient is the Qcells Q.VOLT Ax.xSX?

The California Energy Commission lists a weighted efficiency of 95.0–96.5% for Qcells Q.VOLT Ax.xSX models, measured at six power levels and three DC voltages.

What sizes does the Qcells Q.VOLT Ax.xSX come in?

The CEC list includes 4 models from 3.8 kW to 7.6 kW AC: Q.VOLT A3.8SX, Q.VOLT A5.0SX, Q.VOLT A6.0SX, Q.VOLT A7.6SX.

Is the Qcells Q.VOLT Ax.xSX certified to UL 1741 SB?

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

Can the Qcells Q.VOLT Ax.xSX be used with a battery?

The CEC lists it as a ac-coupled battery inverter. CEC-certified storage systems that include it: Qcells North America Q.HOME CORE A7S 7.6/10.0X, Qcells North America Q.HOME CORE A7S 7.6/15.0X, Qcells North America Q.HOME CORE A7S 7.6/20.0X.

What is the Q.VOLT A6.0SX’s DC input voltage range?

CEC tested it at 121–450 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.
California Energy Commission — Energy Storage System List, data as of Oct 7, 2026. Manufacturer-reported values confirmed by CEC against certificates.
NLR (formerly NREL) — System Advisor Model CEC inverter library (version 2026.7.3).
Building permits — Southern California permit portals. Equipment matched from permit descriptions.