Delta Electronics E8 Plus-TL-US(AC)

Name: Delta Electronics E8 Plus-TL-US(AC)
Brand: Delta Electronics

Battery inverter, ac-coupled battery inverter. 2 models, 6.66 kW–7.68 kW AC at 208 V / 240 V.

UL 1741 SBCEC listed · Feb 1, 2023

Model

Rated AC power7.68 kW
CEC weighted efficiency98.0%

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
E8 Plus-TL-US(AC)	6.66 kW	208 V	6.68 kW	6.68 kW	97.5%	350–480 V	Feb 1, 2023	SB
E8 Plus-TL-US(AC)	7.68 kW	240 V	7.72 kW	7.72 kW	98.0%	350–480 V	Feb 1, 2023	SB

Efficiency

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

CEC weighted efficiency98.0%
Night-time standby (tare)3.21 W
Power to start converting24.3 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 Feb 1, 2023)
Power control system (PCS)Stated in CEC listing (power control system)
CEC listedFeb 1, 2023
Last CEC updateApr 2, 2024

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

Compare with similar 7.68 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 E8 Plus-TL-US(AC)	6.66 kW–7.68 kW	98.0%	350–480 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 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

PCSxxxHVMEx-TL-US(AC)PCSxxxHVPCSxxx

Questions & answers

How efficient is the Delta Electronics E8 Plus-TL-US(AC)?

The California Energy Commission lists a weighted efficiency of 97.5–98.0% for Delta Electronics E8 Plus-TL-US(AC) models, measured at six power levels and three DC voltages.

What sizes does the Delta Electronics E8 Plus-TL-US(AC) come in?

The CEC list includes 2 models from 6.66 kW to 7.68 kW AC: E8 Plus-TL-US(AC), E8 Plus-TL-US(AC).

Is the Delta Electronics E8 Plus-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 E8 Plus-TL-US(AC) be used with a battery?

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

What is the E8 Plus-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.