Cali-Graf in Southern California

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String inverterSiemens Industry

Siemens Industry blueplanet155 TL3 GEN2 M1 WM OD USPX

String inverter. 1 model, 155 kW AC at 600 V.

UL 1741 SBCEC listed · Jun 2, 2025

Rated AC power155 kW
CEC weighted efficiency98.5%

DC input (PV side)

CEC Grid Support Inverter List (Oct 7, 2026)

CEC test DC voltages (min / nom / max)875 / 1,000 / 1,300 V

AC output (grid side)

CEC Grid Support Inverter List (Oct 7, 2026)

Rated AC power155 kW
CEC-measured continuous output155.9 kW
Grid voltage600 V
Phase3-phase 600 V

Efficiency

CEC Grid Support Inverter List (Oct 7, 2026)

CEC weighted efficiency98.5%
Night-time standby (tare)5.27 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 — Bureau Veritas Consumer Products Services, certificate Sep 10, 2024
UL 1741 SA (SA8–SA13)Yes — Bureau Veritas Consumer Products Services
Firmware tested (SA)V4.05
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) conformanceNo
Monitor key data & scheduling (Rule 21 Phase 3)No
CEC listedJun 2, 2025

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

Panel compatibility & string sizing

CEC Grid Support Inverter List (Oct 7, 2026) · NLR PVWatts v8 · CEC PV Module List · Cali-Graf calculation

CityColdest air, °CHottest cell, °C

blueplanet155 TL3 GEN2 M1 WM OD USPX: max DC 1,300 V · MPPT 875–1,300 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 155 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
Siemens Industry blueplanetxxx TL3 GEN2 M1 WM OD USPX	155 kW–155 kW	98.5%	875–1,300 V	Yes	2025	0
SolarEdge SExKUS	9 kW–330 kW	99.0%	100–1,400 V	16 of 19	2025	14
SMA SHP FLEX-US-21	55 kW–172 kW	99.0%	372–1,200 V	Yes	2025	—

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

About Siemens Industry

CEC Grid Support Inverter List (Oct 7, 2026)

ManufacturerSiemens Industry
Listed in CEC asSiemens Industry, Inc.
Models on CEC lists11

Other series

blueplanetxxx TL3 GEN2 M1 WM OD USP0

Questions & answers

How efficient is the Siemens Industry blueplanetxxx TL3 GEN2 M1 WM OD USPX?

The California Energy Commission lists a weighted efficiency of 98.5% for Siemens Industry blueplanetxxx TL3 GEN2 M1 WM OD USPX models, measured at six power levels and three DC voltages.

Is the Siemens Industry blueplanetxxx TL3 GEN2 M1 WM OD USPX certified to UL 1741 SB?

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

What is the blueplanet155 TL3 GEN2 M1 WM OD USPX’s DC input voltage range?

CEC tested it at 875–1,300 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) — 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).