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String inverterYaskawa Solectria Solar

Yaskawa Solectria Solar XGI 1500 250/250-600

String inverter. 1 model, 250 kW AC at 600 V.

UL 1741 SBCEC listed · Apr 21, 2023

Rated AC power250 kW
CEC weighted efficiency98.5%

DC input (PV side)

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

CEC test DC voltages (min / nom / max)860 / 1,100 / 1,250 V
DC input at rated output (CEC test)254.8 kW

AC output (grid side)

CEC Grid Support Inverter List (Oct 7, 2026)

Rated AC power250 kW
CEC-measured continuous output250 kW
Grid voltage600 V
Phase3-phase 600 V

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 converting293 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, 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) conformanceVia gateway during testing (Y*)
Monitor key data & scheduling (Rule 21 Phase 3)Yes (attested Apr 21, 2023)
CEC listedApr 21, 2023

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 250/250-600: 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.

Compare with similar 250 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
Yaskawa Solectria Solar XGI 1500 xxx/xxx-600	250 kW–250 kW	98.5%	860–1,250 V	Yes	2023	0
SolarEdge SExKUS	9 kW–330 kW	99.0%	100–1,400 V	16 of 19	2025	14

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

About Yaskawa Solectria Solar

CEC Grid Support Inverter List (Oct 7, 2026)

ManufacturerYaskawa Solectria Solar
Listed in CEC asYaskawa Solectria Solar
Models on CEC lists51

Other series

PVI xxTL-480PVI-xxTL-208XGI 1500-xxx-480-DCGXGI 1500-xxx-600-DCGXGI 1500-xxx/150-UL-AXGI 1500-xxx/166-UL-AXGI 1500-xxx/xxx-480-DCGXGI 1500-xxx/xxx-600-DCGXGI 1500-xxx/xxx-UL-APVI-xxTL-480-V2XGI 1500 xxx-480XGI 1500 xxx-600

Questions & answers

How efficient is the Yaskawa Solectria Solar XGI 1500 xxx/xxx-600?

The California Energy Commission lists a weighted efficiency of 98.5% for Yaskawa Solectria Solar XGI 1500 xxx/xxx-600 models, measured at six power levels and three DC voltages.

Is the Yaskawa Solectria Solar XGI 1500 xxx/xxx-600 certified to UL 1741 SB?

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

What is the XGI 1500 250/250-600’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).
Building permits — Southern California permit portals. Equipment matched from permit descriptions.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).