CETC Solar Energy, green power unlimited

Solar Cell

High performance solar cells - the decisive factor for top quality solar modules.

At a very early stage CETC Solar Energy addressed the question of how they could optimise its Solar Modules. The answer: by ensuring the constant, uniform efficiency of all the incorporated cells. This has been duly achieved in the form of our multicrystalline and monocrystalline solar cells that are available in a variety of formats and output classes and are manufactured in our production facilities equipped with the world's latest solar cell manufacturing systems.

Recently, CETC Solar Energy has also improved the current state-of-the-art by integrating a high-efficiency rear surface design - the PERC (passivated emitter rear cell) structure. The PERC structure offers a 1% efficiency boost and has steadily gained traction in recent years and is compatible with common screen printing techniques. Its variations include bifacial P-type PERC solar cells. The PERC design currently accounts for only 10% of worldwide crystalline silicon solar cell production but is expected to be the dominant cell architecture by 2024, projected to reach a market share of 45%.

Features

  • Outstanding surface quality.
  • Advanced diffusion technique ensuring the homogeneity of energy conversion efficiency of the cell.
  • Advanced PECVD film forming, providing a dark blue silicon nitride anti-reflection film of homogenous color and attractive appearance.
  • High quality metal paste for back surface and electrode, ensuring good conductivity, high pulling strength and ease of soldering.
  • Efficiency-increasing 4-busbar and 5-busbar technology that optimises electricity collection and ensures optimal electricity yield from your system.
  • First-rate efficiencies and superlative output consistency.
  • Excellent anti-PID performance (under the following conditions: 60°C, 85% humidity, -1000V, 96 hours).
  • Lower power loss through encapsulation. Appropriate electrical performance parameters (high voltage and low voltage). Current evaluation and positive tolerance for the cell performance compensation guarantee a very low loss from cells to modules.
  • Outstanding solderability. Application of double-printing technology in production improves solderability.
  • Meticulous tolerance and quality checks guarantee a constantly high solar cell output capability and the resultant excellent quality of CETC Solar Energy Modules.

 

Monocrystalline solar cell (182 x 182 mm), 10BB (10-busbar) and 12BB (12-busbar)

Efficiency (%) Pmpp (W) Umpp (V) Impp (A) Uoc (V) Isc (A) FF (%)
>23.5 7.759 0.591 13.138 0.695 13.766 81.12
23.4-23.5 7.726 0.592 13.048 0.695 13.674 81.26
23.3-23.4 7.692 0.591 13.021 0.694 13.649 81.18
23.2-23.3 7.659 0.589 12.995 0.693 13.627 81.07
23.1-23.2 7.626 0.588 12.971 0.692 13.609 80.94
23.0-23.1 7.593 0.586 12.953 0.692 13.600 80.74
22.9-23.0 7.560 0.584 12.938 0.691 13.594 80.53
22.8-22.9 7.527 0.582 12.923 0.689 13.586 80.37
22.7-22.8 7.494 0.581 12.904 0.688 13.575 80.21
22.6-22.7 7.461 0.579 12.886 0.687 13.562 80.12
22.5-22.6 7.428 0.577 12.864 0.685 13.556 79.94
22.4-22.5 7.395 0.576 12.843 0.685 13.546 79.71
22.3-22.4 7.362 0.574 12.824 0.684 13.536 79.54
22.2-22.3 7.329 0.574 12.759 0.684 13.514 79.26
22.1-22.2 7.296 0.571 12.788 0.683 13.512 79.04
22.0-22.1 7.263 0.570 12.745 0.682 13.516 78.76

 

Monocrystalline solar cell (166 x 166 mm), 9BB (9-busbar)

Efficiency (%) Pmpp (W) Umpp (V) Impp (A) Uoc (V) Isc (A) FF (%)
22.9-23.0 6.28 0.593 10.582 0.687 11.113 82.18
22.8-22.9 6.25 0.592 10.566 0.686 11.100 82.10
22.7-22.8 6.22 0.591 10.540 0.684 10.095 82.00
22.6-22.7 6.20 0.589 10.525 0.682 11.090 81.89
22.5-22.6 6.17 0.587 10.503 0.681 11.082 81.73
22.4-22.5 6.14 0.586 10.486 0.681 11.075 81.46
22.3-22.4 6.11 0.584 10.477 0.679 11.060 81.41
22.2-22.3 6.09 0.582 10.462 0.678 11.046 81.26
22.1-22.2 6.06 0.580 10.448 0.678 11.039 80.98
22.0-22.1 6.03 0.578 10.433 0.677 11.021 80.81
21.9-22.0 6.00 0.576 10.424 0.675 11.014 80.79
21.8-21.9 5.98 0.574 10.409 0.674 10.996 80.60
21.7-21.8 5.95 0.572 10.401 0.673 10.990 80.45
21.6-21.7 5.92 0.570 10.386 0.672 10.974 80.30
21.5-21.6 5.89 0.568 10.371 0.671 10.958 80.12

 

Monocrystalline solar cell 6" (158.75 x 158.75 mm), 5BB (5-busbar)

Monocrystalline solar cell 6" (156.75 x 156.75 mm), 4BB (4-busbar) and 5BB (5-busbar)

Efficiency (%) Pmpp (W) Umpp (V) Impp (A) Uoc (V) Isc (A) FF (%)
PERC (Passivated Emitter Rear Cell)
22.00-22.10 5.40 0.575 9.40 0.671 9.87 81.61
21.90-22.00 5.38 0.573 9.39 0.670 9.86 81.45
21.80-21.90 5.35 0.571 9.37 0.668 9.85 81.31
21.70-21.80 5.33 0.570 9.35 0.667 9.84 81.20
21.60-21.70 5.30 0.568 9.33 0.666 9.82 81.03
21.50-21.60 5.28 0.567 9.31 0.665 9.81 80.92
21.40-21.50 5.25 0.565 9.29 0.663 9.79 80.87
21.30-21.40 5.23 0.563 9.29 0.661 9.79 80.82
21.20-21.30 5.20 0.561 9.27 0.659 9.77 80.77
21.10-21.20 5.18 0.560 9.25 0.658 9.76 80.66
AL-BSF (Aluminum Back Surface Field)
20.30-20.40 4.98 0.557 8.96 0.649 9.40 81.81
20.20-20.30 4.96 0.555 8.94 0.648 9.39 81.54
20.10-20.20 4.94 0.554 8.91 0.648 9.37 81.30
20.00-20.10 4.91 0.553 8.89 0.647 9.36 81.18
19.90-20.00 4.89 0.551 8.87 0.647 9.35 80.79
19.80-19.90 4.86 0.550 8.84 0.646 9.34 80.58
19.70-19.80 4.84 0.549 8.82 0.646 9.32 80.43
19.60-19.70 4.81 0.548 8.79 0.646 9.31 80.09
19.50-19.60 4.79 0.546 8.77 0.645 9.30 79.83
19.40-19.50 4.76 0.545 8.74 0.645 9.29 79.49
19.30-19.40 4.74 0.544 8.72 0.644 9.27 79.46

 

Polycrystalline / Multicrystalline solar cell 6" (156.75 x 156.75 mm), 4BB (4-busbar) and 5BB (5-busbar)

Efficiency (%) Pmpp (W) Umpp (V) Impp (A) Uoc (V) Isc (A) FF (%)
AL-BSF (Aluminum Back Surface Field)
18.80-20.00 4.62 0.542 8.448 0.641 8.988 79.46
18.70-18.80 4.59 0.541 8.424 0.640 8.964 79.40
18.60-18.70 4.57 0.539 8.399 0.638 8.939 79.35
18.50-18.60 4.54 0.538 8.375 0.637 8.914 79.30
18.40-18.50 4.52 0.536 8.352 0.636 8.891 79.25
18.30-18.40 4.50 0.535 8.330 0.634 8.871 79.17
18.20-18.30 4.47 0.533 8.310 0.633 8.853 79.06
18.10-18.20 4.45 0.531 8.291 0.632 8.836 78.95
18.00-18.10 4.42 0.530 8.269 0.630 8.817 78.86
17.90-18.00 4.40 0.528 8.248 0.629 8.804 78.66

 

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