California
LADWP solar bill explained132 half-cut cells (11 × 12), PERC, bifacial, transparent backsheet. Power classes 400–510 W in the CEC list; datasheet covers 400–415 W.
| Model | Pmax | Voc, V | Isc, A | Vmp, V | Imp, A | Efficiency | PTC | CEC listed |
|---|---|---|---|---|---|---|---|---|
| VSUN400-132BMH | 400 W | 44.90 | 11.35 | 37.00 | 10.82 | ≥19.8% | 372 W | Dec 1, 2023 |
| VSUN405-132BMH | 405 W | 45.10 | 11.42 | 37.20 | 10.89 | ≥20.0% | 377 W | Dec 1, 2023 |
| VSUN410-132BMH | 410 W | 45.30 | 11.50 | 37.40 | 10.97 | ≥20.3% | 381 W | Dec 1, 2023 |
| VSUN415-132BMH | 415 W | 45.50 | 11.57 | 37.60 | 11.04 | ≥20.5% | 386 W | Dec 1, 2023 |
| VSUN485-132BMH | 485 W | 44.80 | 13.71 | 37.80 | 12.84 | ≈20.5% | 454 W | Jul 3, 2023 |
| VSUN490-132BMH | 490 W | 45.00 | 13.78 | 38.00 | 12.90 | ≈20.7% | 459 W | Jul 3, 2023 |
| VSUN495-132BMH | 495 W | 45.20 | 13.85 | 38.20 | 12.96 | ≈20.9% | 464 W | Jul 3, 2023 |
| VSUN500-132BMH | 500 W | 45.40 | 13.93 | 38.40 | 13.03 | ≈21.1% | 469 W | Jul 3, 2023 |
| VSUN505-132BMH | 505 W | 45.60 | 14.00 | 38.60 | 13.09 | ≈21.3% | 474 W | Jul 3, 2023 |
| VSUN510-132BMH | 510 W | 45.76 | 14.09 | 38.77 | 13.17 | ≈21.5% | 479 W | Jul 3, 2023 |
| Datasheet | CEC listing test | |
|---|---|---|
| Pmax coefficient γ | — | −0.351 %/°C |
| Voc coefficient β | — | −0.270 %/°C |
| Isc coefficient α | — | +0.029 %/°C |
| Vmp coefficient | ≈ −0.38 %/°C | — |
| Operating cell temperature | NMOT 45 °C | NOCT 45.7 °C |
| Class | Pmax at NOCT | Vmp × Imp at NOCT | Pmax at 200 W/m² | Low-light efficiency vs STC |
|---|---|---|---|---|
| 400 W | 294.9 W | 34.92 V × 8.45 A | 76.2 W | 95% |
| 405 W | 298.4 W | 35.11 V × 8.5 A | 77.1 W | 95% |
| 410 W | 302.2 W | 35.3 V × 8.56 A | 78 W | 95% |
| 415 W | 305.8 W | 35.49 V × 8.62 A | 79 W | 95% |
| 485 W | 366.1 W | 35.85 V × 10.21 A | 94.2 W | 97% |
| 490 W | 369.7 W | 36.04 V × 10.26 A | 95.1 W | 97% |
| 495 W | 373.4 W | 36.23 V × 10.31 A | 96 W | 97% |
| 500 W | 377.4 W | 36.42 V × 10.36 A | 97.1 W | 97% |
| 505 W | 381.1 W | 36.61 V × 10.41 A | 98 W | 97% |
| 510 W | 385.1 W | 36.77 V × 10.47 A | 99.1 W | 97% |
| Year | Product | Tests |
|---|---|---|
| 2023 | VSUNxxx-132BMH | DHLID+LETIDMSSPIDTC |
| 2023 | VSUNxxx-132BMH-DG (closely related product name) | DHLID+LETIDMSSPIDTC |
| Year | Recognition |
|---|---|
| 2024 | Test Category High Achiever |
| 2025 | Overall Highest Achiever |
| 2026 | Overall Highest Achiever; High achievement in performance; High achievement in reliability; Performance discipline high achiever (Lid, PAN file, Temperature coefficient, Iam, Letid); Quality discipline high achiever (BOM verification); Reliability discipline high achiever (Damp heat, Pid, Sdml, Tc, Uvid) |
| Inverter | Max DC input | MPPT | Window source | Panels per string |
|---|---|---|---|---|
| Tesla 1538000-xx-y | 600 V | 60–480 V | datasheet | 2–12 |
| Solis (Ginlong) S6-EH1P10K-H-US | 600 V | 80–520 V | datasheet | 3–12 |
| Solis (Ginlong) Solis-1P7.6K-4G-US | 600 V | 100–500 V | datasheet | 4–12 |
| Qcells Q.VOLT H7.6SX | 498 V | 234–498 V | CEC test window | 8–10 |
| Microinverter | Recommended module power | Max DC input | MPPT | Voc cold / Vmp hot | Check | DC/AC |
|---|---|---|---|---|---|---|
| Enphase IQ8PLUS-72-2-US | 235–440 W | 60 V | 29–45 V | 47.7 / 30.1 V | ✓ Within range | 1.38 |
| Enphase IQ8X-80-M-US | 320–540 W | 79.5 V | 43–60 V | 47.7 / 30.1 V | ✗ Not a match: module voltage below MPPT range | 1.05 |
| APsystems (Alt Power System) DS3-L | 265–570 W | 60 V | 28–45 V | 47.7 / 30.1 V | ✓ Within range | 0.51 |
| Enphase IQ8M-72-2-US | 260–460 W | 60 V | 30–45 V | 47.7 / 30.1 V | ✓ Within range | 1.23 |
| Enphase IQ8A-72-2-US | 295–500 W | 60 V | 32–45 V | 47.7 / 30.1 V | ⚠ Works; below MPPT at peak heat | 1.15 |
| City | kWh / kW / yr | kWh / panel / yr | kWh / system / yr | Sun, kWh/m²/day |
|---|---|---|---|---|
| Los Angeles | 1,676 | 670 | 12,067 | 6.08 |
| Palmdale | 1,835 | 734 | 13,212 | 6.69 |
| Chula Vista | 1,696 | 678 | 12,211 | 6.11 |
| Huntington Beach | 1,643 | 657 | 11,830 | 5.89 |
| Riverside | 1,696 | 678 | 12,211 | 6.21 |
| Santa Clarita | 1,724 | 690 | 12,413 | 6.28 |
| Panel | Pmax | Efficiency | γ Pmax (CEC) | Voc, V | Isc, A | PVEL (product / brand) | SoCal permits (series) |
|---|---|---|---|---|---|---|---|
| VSUN (Vietnam Sunergy) VSUN400-132BMH | 400 W | ≥19.8% | −0.351 | 44.9 | 11.35 | product 2023 | — |
| Qcells Q.PEAK DUO BLK ML-G10+ 400 | 400 W | ≥20.4% | −0.362 | 45.3 | 11.14 | product 2022, 2023 | 221 |
| JA Solar JAM54S31-400/MR | 400 W | ≈21.1% | −0.329 | 37.07 | 13.79 | product 2023, 2024 | 152 |
| REC Group REC400AA Pure | 400 W | ≈22.3% | −0.256 | 48.8 | 10.25 | brand 9× (2016–2025) | 66 |
The VSUN (Vietnam Sunergy) datasheet guarantees at least 19.8% module efficiency for the 400 W class (up to 20.5% for 415 W). 400 W over 2.37 m² equals about 169 W per square meter.
PVWatts v8 with typical-year weather gives about 670 kWh per year per 400 W panel in Los Angeles and about 734 kWh in Palmdale (20° roof, facing south, 14% system losses).
With γ = −0.351 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 18.2% below the STC rating.
With the Tesla 1538000-xx-y (max DC 600 V, MPPT from 60 V, datasheet) in Los Angeles the calculator gives 2–12 panels per string (Voc at 2 °C = 47.7 V, Vmp at 74 °C cell = 30.1 V). Final design must follow the inverter manual and NEC 690.7.
Voltage check against the Enphase datasheet: Voc when cold 47.7 V vs max input 60 V; Vmp when hot 30.1 V vs MPPT low 29 V; recommended module power 235–440 W. Confirm on the microinverter maker’s compatibility list.
30 years linear on performance (manufacturer datasheet).
Yes, bifaciality 70 ± 10%. Rear gain depends on mounting height and ground reflectance.
VSUNxxx-132BMH was a PVEL Top Performer in 2023 (DH, LID+LETID, MSS, PID, TC).