Kehua BCS125K-B-HM-US X2

Name: Kehua BCS125K-B-HM-US X2
Brand: Kehua

Battery inverter, ac-coupled battery inverter. 5 models, 75 kW–175 kW AC at 480 V / 600 V.

UL 1741 SBCEC listed · Mar 21, 2024

Model

Rated AC power125 kW
CEC weighted efficiency98.5%

Models & power ratings

CEC Grid Support Inverter List (Oct 7, 2026) · NLR SAM inverter library · 5 models

Model	Nominal AC	Grid voltage	CEC continuous	Rated AC (SAM)	CEC weighted eff.	DC test window	CEC listed	UL 1741 SB
BCS75K-B-HM-US X2	75 kW	480 V	75.1 kW	75.1 kW	98.5%	720–1,450 V	Mar 21, 2024	SB
BCS100K-B-HM-US X2	100 kW	480 V	100.1 kW	100.1 kW	98.5%	720–1,300 V	Mar 21, 2024	SB
BCS125K-B-HM-US X2	125 kW	480 V	125 kW	125 kW	98.5%	720–1,300 V	Mar 21, 2024	SB
BCS150K-B-HM-US X2	150 kW	600 V	150 kW	150 kW	98.5%	920–1,450 V	Mar 21, 2024	SB
BCS175K-B-HM-US X2	175 kW	600 V	175 kW	175 kW	98.5%	920–1,450 V	Mar 21, 2024	SB

Efficiency

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

CEC weighted efficiency98.5%
Night-time standby (tare)60 W
Power to start converting77.3 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 — Intertek, certificate Jan 16, 2024
UL 1741 SA (SA8–SA13)No
Volt-VAr with reactive power priority (SA13)No
Freq-Watt / Volt-Watt (SA14–15)No
Disable permit service / limit active power (SA17–18)No
CSIP (IEEE 2030.5) conformanceNo
Monitor key data & scheduling (Rule 21 Phase 3)No
CEC listedMar 21, 2024

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

Compare with similar 125 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
Kehua BCSxxK-B-HM-US X2	75 kW–175 kW	98.5%	720–1,300 V	Yes	2024	0
Growatt WIT xxK-A-US	50 kW–100 kW	99.0%	750–900 V	Yes	2024	—
Growatt WIT xxK-AU-US	50 kW–100 kW	99.0%	750–900 V	Yes	2024	—
CPS (Chint Power Systems) CPS ECBxx.xKTL-M/US-480	62.5 kW–125 kW	97.5%	750–1,100 V	Yes	2020	—

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

About Kehua

CEC Grid Support Inverter List (Oct 7, 2026)

ManufacturerKehua
Listed in CEC asXiamen Kehua Digital Energy Tech Co., Ltd
Models on CEC lists39

Other series

BCSxxxK-S-HLC

Questions & answers

How efficient is the Kehua BCSxxK-B-HM-US X2?

The California Energy Commission lists a weighted efficiency of 98.5% for Kehua BCSxxK-B-HM-US X2 models, measured at six power levels and three DC voltages.

What sizes does the Kehua BCSxxK-B-HM-US X2 come in?

The CEC list includes 5 models from 75 kW to 175 kW AC: BCS75K-B-HM-US X2, BCS100K-B-HM-US X2, BCS125K-B-HM-US X2, BCS150K-B-HM-US X2, BCS175K-B-HM-US X2.

Is the Kehua BCSxxK-B-HM-US X2 certified to UL 1741 SB?

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

Can the Kehua BCSxxK-B-HM-US X2 be used with a battery?

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

What is the BCS125K-B-HM-US X2’s DC input voltage range?

CEC tested it at 720–1,300 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.