10.4 × 7.9 × 1.6 in

Battery inverterEnphase Energy

Enphase Energy IQ8D-BAT

Name: Enphase Energy IQ8D-BAT
Brand: Enphase Energy

Battery inverter, ac-coupled battery inverter. 2 models, 1 W–555 W AC at 208 V / 240 V.

UL 1741 SBCEC listed · Aug 1, 2023Rapid shutdownInstalled in 22 SoCal permits

Model

Rated AC power1 W
CEC weighted efficiency97.0%
Max DC input100 V
Warranty15 years

Models & power ratings

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

Model	Nominal AC	Grid voltage	CEC continuous	Rated AC (SAM)	CEC weighted eff.	DC test window	CEC listed	UL 1741 SB	In permits
IQ8D-BAT	1 W	240 V	639 W	639 W	97.0%	60–87 V	Aug 1, 2023	SB	14
IQ8D-BAT	555 W	208 V	555 W	555 W	96.5%	60–87 V	Dec 23, 2024	SB	14

AC output (grid side)

CEC Grid Support Inverter List (Oct 7, 2026) · Enphase Energy datasheet

Rated AC power1 W
CEC-measured continuous output639 W
Grid voltage208 V / 240 V
Phase208 V (1-phase of 3-phase service), split-phase 120/240 V
Frequency60 Hz
Max continuous output current2.67 A

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) · Enphase Energy datasheet

UL 1741 SB (3rd ed.)Yes — UL, certificate Jan 30, 2025
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)
Power control system (PCS)Stated in CEC listing (power control system)
CEC listedAug 1, 2023
Last CEC updateJul 11, 2025
Standards listed on the datasheetUL 1741 SA, UL 1741 SB, UL 1741, IEEE 1547, UL 62109, UL 1998, UL 3741, FCC Part 15, CA Rule 21, HECO Rule 14H, NEC 690.12 (rapid shutdown), IEC 60730

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

Safety & protection

Enphase Energy datasheet

Rapid shutdown (NEC 690.12)Yes — UL 3741 PV hazard control

Monitoring & communication

Enphase Energy datasheet

InterfacesPLC, CAN

Size, weight & environment

Enphase Energy datasheet

Dimensions (W × H × D)10.4 × 7.9 × 1.6 in
Weight3.4 lb (1.5 kg)
CoolingNatural convection (no fans)
Operating temperature−40 to +60 °C

Warranty

Enphase Energy datasheet

Standard warranty15 years

Battery & storage pairings

building permits

Batteries installed with it in SoCal

Enphase IQ Battery 5P

What it's installed with

building permits

Panels

Qcells Q.PEAK DUO

JinkoSolar JKMxxxN-54HL4-B

Trina Solar TSM-xxxNE09RC.05

Batteries

Enphase IQ Battery 5P

Gateways & interfaces

Enphase IQ System Controller

Permits naming both; 22 of 22 permits list other equipment.

Installed in Southern California

building permits

Permits name it

Jan 2025 – Mar 2026

Jurisdictions so far

LA County (unincorp.) (20), Palmdale (1), San Diego County (1)

4.9 kW

Typical system

median of 18 permits

Permits over time

Model named in permit

IQ8D-BAT

Top ZIP codes

ZIP 900613
ZIP 900473
ZIP 907012
ZIP 907132
Other ZIP codes12

Only installer and ZIP level is shown — no homeowner names, street addresses or permit numbers. Permits from LA County (unincorp.) come without a contractor license, so they count toward totals but not toward installers. Counts grow as more permit portals are loaded.

Who installs IQ8D-BAT in SoCal

building permits · CSLB License Master

Lgcy Electric

Lehi · CSLB #1099095

1 installFeb 2025San Diego County

Lumenexx

Walnut · CSLB #1114147

1 installJul 2025Palmdale

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-DOM

Documents

manufacturer documents

PDF
IQ Battery 5P data sheet
Datasheet · Enphase
PDF
IQ8D-BAT Microinverter data sheet
Datasheet · Enphase

Questions & answers

How efficient is the Enphase Energy IQ8D-BAT?

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

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

The CEC list includes 2 models from 1 W to 555 W AC: IQ8D-BAT, IQ8D-BAT.

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

The CEC lists it as a ac-coupled battery inverter. In Southern California permits it was installed with Enphase IQ Battery 5P.

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

Max DC input voltage is 100 V per the datasheet. CEC tested it at 60–87 V DC.

What warranty does it have?

15 years standard (manufacturer datasheet).

Who installs it in Southern California?

Building permits name this series 22 times (Jan 2025 – Mar 2026). The most active licensed installers are Lgcy Electric, Lumenexx.

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 — datasheet IQ8D-BAT Microinverter data sheet.
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 — Los Angeles County Public Works (EPIC-LA, unincorporated areas) (Jan 2025 – Mar 2026); City of Palmdale (Jul 2025); San Diego County (Feb 2025). Equipment matched from permit descriptions by model number.
Contractors State License Board — License Master (contractor names and license status), as of Oct 5, 2026.