Cali-Graf in Southern California

For pros Sign in

Illustration

Battery inverterKehua

Kehua BCS500K-S-HLC

Battery inverter, ac-coupled battery inverter. 1 model, 498 kW AC at 690 V.

UL 1741 SBCEC listed · Aug 11, 2026

Rated AC power498 kW
CEC weighted efficiency98.5%

AC output (grid side)

CEC Grid Support Inverter List (Oct 7, 2026)

Rated AC power498 kW
CEC-measured continuous output498.2 kW
Grid voltage690 V
Phase3-phase 690 V

Efficiency

CEC Grid Support Inverter List (Oct 7, 2026)

CEC weighted efficiency98.5%
Night-time standby (tare)997 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 — TUV Rheinland of North America, certificate May 20, 2026
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
Anti-islanding method groupsGroups 4 (manufacturer-reported)
CEC listedAug 11, 2026

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

Compare with similar 498 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 BCSxxxK-S-HLC	498 kW–498 kW	98.5%	1,060–1,500 V	Yes	2026	0
EPC Power 50-100100	450 kW–1,500 kW	98.0%	400–1,250 V	Yes	2021	—

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

BCSxxK-B-HM-US X2

Questions & answers

How efficient is the Kehua BCSxxxK-S-HLC?

The California Energy Commission lists a weighted efficiency of 98.5% for Kehua BCSxxxK-S-HLC models, measured at six power levels and three DC voltages.

Is the Kehua BCSxxxK-S-HLC certified to UL 1741 SB?

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

Can the Kehua BCSxxxK-S-HLC be used with a battery?

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

What is the BCS500K-S-HLC’s DC input voltage range?

CEC tested it at 1,060–1,500 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.
Building permits — Southern California permit portals. Equipment matched from permit descriptions.