Delta Electronics E10-TL-US(AC)

Name: Delta Electronics E10-TL-US(AC)
Brand: Delta Electronics

Battery inverter, ac-coupled battery inverter. 4 models, 3.33 kW–9.6 kW AC at 208 V / 240 V.

UL 1741 SBCEC listed · Aug 11, 2020

Model

Rated AC power9.6 kW
CEC weighted efficiency98.0%

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
E4-TL-US(AC)	3.33 kW	208 V	3.36 kW	3.36 kW	98.0%	350–480 V	Aug 11, 2020	SB
E4-TL-US(AC)	3.84 kW	240 V	3.89 kW	3.89 kW	98.5%	350–480 V	Aug 11, 2020	SB
E10-TL-US(AC)	8.32 kW	208 V	8.33 kW	8.33 kW	97.5%	350–480 V	Jun 1, 2022	SB
E10-TL-US(AC)	9.6 kW	240 V	9.63 kW	9.63 kW	98.0%	350–480 V	Jun 1, 2022	SB

Efficiency

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

CEC weighted efficiency98.0%
Night-time standby (tare)3.14 W
Power to start converting24 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 Sep 15, 2023
UL 1741 SA (SA8–SA13)Yes — CSA Group
Firmware tested (SA)1.6.2
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 Jun 1, 2022)
Power control system (PCS)Stated in CEC listing (power control system)
Built-in meterYes
CEC listedAug 11, 2020
Last CEC updateApr 2, 2024

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

Monitoring & communication

CEC Grid Support Inverter List (Oct 7, 2026)

Built-in production meterBuilt-in meter (CEC listing)

Compare with similar 9.6 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
Delta Electronics Ex-TL-US(AC)	3.33 kW–9.6 kW	98.0%	350–480 V	Yes	2022	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 Delta Electronics

CEC Grid Support Inverter List (Oct 7, 2026)

ManufacturerDelta Electronics
Listed in CEC asDelta Electronics
Websitedelta-americas.com
Models on CEC lists138

Other series

PCSxxxHVME8 Plus-TL-US(AC)PCSxxxHVPCSxxx

Questions & answers

How efficient is the Delta Electronics Ex-TL-US(AC)?

The California Energy Commission lists a weighted efficiency of 97.5–98.5% for Delta Electronics Ex-TL-US(AC) models, measured at six power levels and three DC voltages.

What sizes does the Delta Electronics Ex-TL-US(AC) come in?

The CEC list includes 4 models from 3.33 kW to 9.6 kW AC: E4-TL-US(AC), E4-TL-US(AC), E10-TL-US(AC), E10-TL-US(AC).

Is the Delta Electronics Ex-TL-US(AC) certified to UL 1741 SB?

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

Can the Delta Electronics Ex-TL-US(AC) be used with a battery?

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

What is the E10-TL-US(AC)’s DC input voltage range?

CEC tested it at 350–480 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).
Building permits — Southern California permit portals. Equipment matched from permit descriptions.