Q: What are heterojunction technology (HJT) Solar Panels?
A: Heterojunction technology (HJT) is a not-so-new Solar Panel production method that has really picked up steam in the last decade. The technology is currently the solar industry’s best option to increase efficiency and power output to their highest levels. HJT combines the best qualities of crystalline silicon with those from amorphous silicon thin-film to produce a high-power hybrid cell that surpasses the performance of the industry’s go-to technology, PERC.
Sunket has launched HJT Solar modules, which have the following 10 advantages:
1) Higher conversion efficiency: higher installed capacity within a limited installation area and lower BOS cost;
2) Higher reliability: Our product design is mature and has been tested by the market. Compared with large-sized components, it is more effective in resisting wind load and snow pressure, and it is not easy to cause frame damage, glass burst, and a large number of hidden cracks to cause excessive attenuation of components. ;
3) Low attenuation rate: 90% power line quality guarantee is still available after 30 years of use;
4) Low temperature coefficient of -0.24%: 2%-3.9% higher power generation per watt compared to conventional PERC;
5) Better low-light power generation performance: HJT adopts N-type silicon wafer technology, which generates 1% more electricity per watt compared to single crystal PERC;
6) No PID, no LID attenuation: lower attenuation of components in the whole life cycle and higher power generation;
7) Double-sided rate as high as 90%+: the backside of our heterojunction modules can have more than 90% and at least 423W of backside power generation, and the power generation superposition is higher after double-sided installation;
8) Lower LCOE: At present, compared with PERC single crystal technology, our heterojunction technology is more advanced, achieving the lowest LCOE of power generation, faster payback period and maximum benefit;
9) Good matching: suitable for photovoltaic grid-connected inverters and photovoltaic tracking brackets used in domestic mainstream;
10) Cost-effective.
HJT PV Module SKT460~480M6
166MM 144CELLS BIFACIAL HJT MONO HALF CELL PV-MODULE SERIES
30 YEARS 90%+ OUTPUT
22.1% ULTRA-HIGH EFF
90%+ BIFACIALITY
-0.24%/℃ LOW TEMP COEFF
NO PID NO LID
LOW-LIGHT PERFORMANCE
Sunket HJT Solar Panel Product Description
Electrical Characteristics (STC/NOCT)
| Module Type | SKT430M6 | SKT435M6 | SKT440M6 | SKT445M6 | SKT450M6 | SKT455M6 | SKT460M6 |
| | STC | NOCT | STC | NOCT | STC | NOCT | STC | NOCT | STC | NOCT | STC | NOCT | STC | NOCT |
| Maximum Power- Pmax(W) | 430 | 317.4 | 435 | 321.1 | 440 | 324.9 | 445 | 328.6 | 450 | 332.3 | 455 | 336.1 | 460 | 339.8 |
| Open Circuit Voltage - Voc(V) | 48.5 | 45.3 | 48.7 | 45.5 | 48.9 | 45.7 | 49.1 | 45.8 | 49.3 | 46.0 | 49.5 | 46.2 | 49.7 | 46.4 |
| Short- Circuit Current - Isc(A) | 11.31 | 9.08 | 11.39 | 9.15 | 11.46 | 9.21 | 11.53 | 9.27 | 11.60 | 9.33 | 11.66 | 9.38 | 11.73 | 9.43 |
| Voltage at Pmax -Vmp(V) | 40.7 | 37.7 | 40.9 | 37.9 | 41.1 | 38.1 | 41.3 | 38.3 | 41.5 | 38.5 | 41.7 | 38.6 | 41.9 | 38.8 |
| Current at Pmax - Imp(A) | 10.57 | 8.42 | 10.64 | 8.47 | 10.71 | 8.53 | 10.78 | 8.59 | 10.85 | 8.64 | 10.92 | 8.70 | 10.98 | 8.75 |
| Module Efficiency -ηm(%) | 19.8 | / | 20.0 | / | 20.2 | / | 20.5 | / | 20.7 | / | 20.9 | / | 21.2 | / |
| Power Tolerance(W) | （0, +4.99W） |
| Maximum System Voltage(V) | 1500Vdc (IEC / UL) |
| Maximum Series Fuse Rating (A) | 20A |
STC : Irradiance 1000W/m2，Cell Temperature 25℃，Air Mass 1.5
NOCT: Irradiance 800W/m2，Ambient Temperature 20℃，Air Mass 1.5， Wind Speed 1m/s
SUNKET HJT Solar Panel Raw Materials
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