Enphase Energy IQ8D-BAT-DOM

Name: Enphase Energy IQ8D-BAT-DOM
Brand: Enphase Energy

Battery inverter, ac-coupled battery inverter. 2 models, 555 W–640 W AC at 208 V / 240 V.

UL 1741 SBCEC listed · Oct 1, 2024

Model

Rated AC power640 W
CEC weighted efficiency97.0%

Models & power ratings

CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library · 2 models

Model	Nominal AC	Grid voltage	CEC continuous	Rated AC (SAM)	CEC weighted eff.	DC test window	CEC listed	UL 1741 SB
IQ8D-BAT-DOM	555 W	208 V	555 W	555 W	96.5%	60–87 V	Dec 23, 2024	SB
IQ8D-BAT-DOM	640 W	240 V	639 W	639 W	97.0%	60–87 V	Oct 1, 2024	SB

Efficiency

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

CEC weighted efficiency97.0%
Night-time standby (tare)0.06 W
Power to start converting9.7 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 — UL, certificate Oct 24, 2024
UL 1741 SA (SA8–SA13)Yes — UL
Firmware tested (SA)4.64.01
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 Dec 23, 2024)
CEC listedOct 1, 2024
Last CEC updateDec 23, 2024
CEC noteIQ8D-BAT-DOM is for use in Enphase Energy's energy storage system named IQBATTERY-5P-1P-NA. Model IQ8D-BAT-DOM is not intended for use with other third-party battery sources.

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

Compare with similar 640 W 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
Enphase Energy IQ8D-BAT-DOM	555 W–640 W	97.0%	60–87 V	Yes	2024	0
Enphase Energy IQ8D-BAT	1 W–555 W	97.0%	60–87 V	Yes	2024	22

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

About Enphase Energy

CEC Grid Support Inverter List (Oct 7, 2026)

ManufacturerEnphase Energy
Listed in CEC asEnphase Energy, Inc.
Websiteenphase.com
Models on CEC lists223

Other series

IQ8D-BAT · 22 permits

Documents

manufacturer documents

PDF
IQ Battery 5P data sheet
Datasheet · Enphase

Questions & answers

How efficient is the Enphase Energy IQ8D-BAT-DOM?

The California Energy Commission lists a weighted efficiency of 96.5–97.0% for Enphase Energy IQ8D-BAT-DOM models, measured at six power levels and three DC voltages.

What sizes does the Enphase Energy IQ8D-BAT-DOM come in?

The CEC list includes 2 models from 555 W to 640 W AC: IQ8D-BAT-DOM, IQ8D-BAT-DOM.

Is the Enphase Energy IQ8D-BAT-DOM certified to UL 1741 SB?

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

Can the Enphase Energy IQ8D-BAT-DOM be used with a battery?

The CEC lists it as a ac-coupled battery inverter.

What is the IQ8D-BAT-DOM’s DC input voltage range?

CEC tested it at 60–87 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.
Enphase Energy — document library on the manufacturer’s website (links above).
NLR (formerly NREL) — System Advisor Model CEC inverter library (version 2026.7.3).
Building permits — Southern California permit portals. Equipment matched from permit descriptions.