144 half-cut cells, bifacial, glass (dual-glass module). Power classes 560–600 W in the CEC list.
| Model | Pmax | Voc, V | Isc, A | Vmp, V | Imp, A | Efficiency | PTC | CEC listed |
|---|---|---|---|---|---|---|---|---|
| HT72-18X(ND)-F-560 | 560 W | 50.50 | 14.07 | 42.30 | 13.25 | ≈21.7% | 527 W | Feb 21, 2025 |
| HT72-18X(ND)-F-565 | 565 W | 50.70 | 14.15 | 42.50 | 13.31 | ≈21.9% | 532 W | Feb 21, 2025 |
| HT72-18X(ND)-F-570 | 570 W | 50.90 | 14.23 | 42.70 | 13.37 | ≈22.1% | 536 W | Feb 21, 2025 |
| HT72-18X(ND)-F-575 | 575 W | 51.10 | 14.31 | 42.90 | 13.41 | ≈22.3% | 541 W | Feb 21, 2025 |
| HT72-18X(ND)-F-580 | 580 W | 51.30 | 14.39 | 43.10 | 13.47 | ≈22.5% | 546 W | Feb 21, 2025 |
| HT72-18X(ND)-F-585 | 585 W | 51.50 | 14.47 | 43.30 | 13.53 | ≈22.7% | 551 W | Feb 21, 2025 |
| HT72-18X(ND)-F-590 | 590 W | 51.70 | 14.55 | 43.50 | 13.59 | ≈22.9% | 556 W | Feb 21, 2025 |
| HT72-18X(ND)-F-595 | 595 W | 51.85 | 14.62 | 43.55 | 13.67 | ≈23.1% | 560 W | Feb 21, 2025 |
| HT72-18X(ND)-F-600 | 600 W | 52.00 | 14.70 | 43.70 | 13.73 | ≈23.3% | 565 W | Feb 21, 2025 |
| CEC listing test | |
|---|---|
| Pmax coefficient γ | −0.299 %/°C |
| Voc coefficient β | −0.235 %/°C |
| Isc coefficient α | +0.043 %/°C |
| Operating cell temperature | NOCT 46.2 °C |
| Class | Pmax at NOCT | Vmp × Imp at NOCT | Pmax at 200 W/m² | Low-light efficiency vs STC |
|---|---|---|---|---|
| 560 W | 424.5 W | 40.07 V × 10.59 A | 109.9 W | 98% |
| 565 W | 428.4 W | 40.26 V × 10.64 A | 110.9 W | 98% |
| 570 W | 432.3 W | 40.45 V × 10.69 A | 111.9 W | 98% |
| 575 W | 435.7 W | 40.64 V × 10.72 A | 112.8 W | 98% |
| 580 W | 439.7 W | 40.83 V × 10.77 A | 113.8 W | 98% |
| 585 W | 443.7 W | 41.02 V × 10.82 A | 114.9 W | 98% |
| 590 W | 447.7 W | 41.21 V × 10.86 A | 115.9 W | 98% |
| 595 W | 450.8 W | 41.26 V × 10.93 A | 116.7 W | 98% |
| 600 W | 454.4 W | 41.4 V × 10.98 A | 117.6 W | 98% |
| Year | Product | Tests |
|---|---|---|
| 2024 | HT72-18X(ND)-F-xxx | HSSLID+LETIDMSSPANTC |
| 2023 | HT72-18X-xxx (closely related product name) | LID+LETIDMSSPID |
| 2024 | HT72-18X-xxx (closely related product name) | DHHSSLID+LETIDPID |
| 2025 | HT72-18X-xxx (closely related product name) | MSS |
| 2024 | HT72-18X(N)-xxx (closely related product name) | LID+LETID |
| Inverter | Max DC input | MPPT | Window source | Panels per string |
|---|---|---|---|---|
| Tesla 1538000-xx-y | 600 V | 60–480 V | datasheet | 2–11 |
| Solis (Ginlong) S6-EH1P10K-H-US | 600 V | 80–520 V | datasheet | 3–11 |
| Solis (Ginlong) Solis-1P7.6K-4G-US | 600 V | 100–500 V | datasheet | 3–11 |
| Qcells Q.VOLT H7.6SX | 498 V | 234–498 V | CEC test window | 7–9 |
| City | kWh / kW / yr | kWh / panel / yr | kWh / system / yr | Sun, kWh/m²/day |
|---|---|---|---|---|
| Los Angeles | 1,676 | 972 | 11,665 | 6.08 |
| Palmdale | 1,835 | 1,064 | 12,772 | 6.69 |
| Chula Vista | 1,696 | 984 | 11,804 | 6.11 |
| Huntington Beach | 1,643 | 953 | 11,435 | 5.89 |
| Riverside | 1,696 | 984 | 11,804 | 6.21 |
| Santa Clarita | 1,724 | 1,000 | 11,999 | 6.28 |
| Panel | Pmax | Efficiency | γ Pmax (CEC) | Voc, V | Isc, A | PVEL (product / brand) | SoCal permits (series) |
|---|---|---|---|---|---|---|---|
| Shanghai Aerospace Automobile Electromechanical HT72-18X(ND)-F 580 | 580 W | ≈22.5% | −0.299 | 51.3 | 14.39 | product 2024 | — |
| ZNShine Solar ZXM7-UHLDD144-580/N | 580 W | ≈22.7% | −0.281 | 51.5 | 14.35 | product 2024, 2025, 2026 | 1 |
| VSUN (Vietnam Sunergy) VSUN580N-144MH | 580 W | ≈22.5% | −0.309 | 52.02 | 13.83 | brand 6× (2021–2026) | 1 |
| Phono Solar PS580M8GFH-24/TNH | 580 W | ≈22.7% | −0.293 | 52.7 | 13.66 | product 2024, 2025 | 1 |
Calculated from the panel area (2.58 m²): about 22.5% for the 580 W class. 580 W over 2.58 m² equals about 225 W per square meter.
PVWatts v8 with typical-year weather gives about 972 kWh per year per 580 W panel in Los Angeles and about 1,064 kWh in Palmdale (20° roof, facing south, 14% system losses).
With γ = −0.299 %/°C, at a 77 °C cell temperature (hottest modeled hour in Palmdale) output is about 15.5% 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 2–11 panels per string (Voc at 2 °C = 54.1 V, Vmp at 74 °C cell = 35.9 V). Final design must follow the inverter manual and NEC 690.7.
Yes. Rear gain depends on mounting height and ground reflectance.
HT72-18X(ND)-F-xxx was a PVEL Top Performer in 2024 (HSS, LID+LETID, MSS, PAN, TC).