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Hybrid inverterYaskawa Solectria Solar

Yaskawa Solectria Solar XGI 1500-166/166-3S

Hybrid inverter, dc-coupled hybrid (pv + battery). 2 models, 125 kW–166 kW AC at 600 V.

UL 1741 SBCEC listed · Jun 11, 2024

Model

Rated AC power166 kW
CEC weighted efficiency98.5%

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
XGI 1500-125/125-3S	125 kW	600 V	125 kW	125 kW	98.5%	860–1,250 V	Jun 11, 2024	SB
XGI 1500-166/166-3S	166 kW	600 V	166 kW	166 kW	98.5%	860–1,250 V	Jun 11, 2024	SB

Some models are also on the CEC Battery Inverter list — one product, two listings.

DC input (PV side)

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

CEC test DC voltages (min / nom / max)860 / 1,000 / 1,250 V
DC input at rated output (CEC test)168.6 kW

Efficiency

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

CEC weighted efficiency98.5%
Night-time standby (tare)0.33 W
Power to start converting239.6 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 Jan 30, 2023
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)Yes (attested Jun 11, 2024)
CEC listedJun 11, 2024

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

Panel compatibility & string sizing

NLR SAM inverter library · NLR PVWatts v8 · CEC PV Module List · Cali-Graf calculation

CityColdest air, °CHottest cell, °C

XGI 1500-166/166-3S: max DC 1,250 V · MPPT 860–1,250 V (CEC test window)

Most-permitted panels in Southern California

Panel	Power	Voc cold	Vmp hot	Panels per string	Installed together
Qcells Q.PEAK DUO BLK ML-G10.C+ 410	410 W	48.1 V	30.6 V	no fit	—
Qcells Q.PEAK DUO BLK ML-G10+ 410	410 W	48.1 V	30.6 V	no fit	—
LONGi LR5-54HABB-400M	400 W	39.3 V	25.3 V	no fit	—
JA Solar JAM54S31-405/MR	405 W	39.4 V	25.5 V	no fit	—
Hyundai Solutions HiN-T440NF(BK)	440 W	40.9 V	27 V	no fit	—
Silfab Solar SIL-440QD	440 W	41.1 V	28 V	no fit	—
Qcells Q.TRON BLK M-G2+ 430	430 W	41.3 V	28 V	no fit	—
Qcells Q.TRON BLK M-G2.H+ 430	430 W	41.3 V	28 V	no fit	—
REC Group REC460AA Pure-RX	460 W	68.8 V	47.1 V	no fit	—
Elin (Sirius PV) ELNSM54M-HC-410	410 W	39.3 V	25.3 V	no fit	—
Qcells Q.TRON BLK M-G2.C+ 430	430 W	41.3 V	28 V	no fit	—
Tesla TSP-420	420 W	43.4 V	27.7 V	no fit	—

Voltage check only, from CEC panel data and NLR weather for the city. Final design must follow the inverter manual and NEC 690.7.

Questions & answers

How efficient is the Yaskawa Solectria Solar XGI 1500-xxx/xxx-3S?

The California Energy Commission lists a weighted efficiency of 98.5% for Yaskawa Solectria Solar XGI 1500-xxx/xxx-3S models, measured at six power levels and three DC voltages.

What sizes does the Yaskawa Solectria Solar XGI 1500-xxx/xxx-3S come in?

The CEC list includes 2 models from 125 kW to 166 kW AC: XGI 1500-125/125-3S, XGI 1500-166/166-3S.

Is the Yaskawa Solectria Solar XGI 1500-xxx/xxx-3S certified to UL 1741 SB?

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

Can the Yaskawa Solectria Solar XGI 1500-xxx/xxx-3S be used with a battery?

The CEC lists it as a dc-coupled hybrid (pv + battery).

What is the XGI 1500-166/166-3S’s DC input voltage range?

CEC tested it at 860–1,250 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).
NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Riverside, Santa Clarita, Chula Vista, Huntington Beach.
California Energy Commission — PV Module List (module electrical data for the compatibility check).
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).