Technology

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BIPV(Building Integrated Photovoltaics)

Technology

01Glass to Glass / Glass to Steel Diagram Comparison

Glass to Glass
G to G
Arrow
Glass to Steel
G to S

02Integral Z-bar (Glass to Steel) manufacturing technology

  • Batch processing

    Configuration diagram
    No attaching of aluminum Z-bar process required
    Double-bent integral steel Z-bar
  • Laminating process

    Laminating process
  • Junction box processing

    Junction box processing
  • Shipment

    Shipment
No attaching of aluminum Z-bar process required
Double-bent integral steel Z-bar

03Polyolefin (POE) Packaging Tenchology

Comparison of packaging material properties
Item EVA(Ethylene Vinyl Acetate) POE(Polyolefin) Remarks
Vinyl Acetate Content (Vinyl Acetate)(wt%) 28±4 0
PID(Potential-induced degradation) Volume resistivity(Ω-Cm) ≥1×1014 ≥1×1016 100x
Glass adhesion strength (N/cm) 154 272 1.7x
Degree of crystallinity (%) 9.9 20.2 2x
Moisture penetration rate WVTR(38℃×90% RH,500um)(g/m2-day) 34 3.3 1/10x
Improvement

Long-term reliabilityas a building material can be ensured by utilizing POE packaging materials.

  • EVA(Ethylene Vinyl Acetate)
  • PID(Degradation due to electrical potential difference)
  • Delamination(Occurrence of moisture penetration/Delamination/thermal expansion)
  • Corrosion (acetic acid)
Arrow
  • POE(Polyolefin)
  • Anti - PID
  • Significantly lower delamination due to low moisture penetration rate
  • No Corrosion

04Glass to Glass / Glass to Steel BIPV Comparison

Glass to Glass

Glass to Glass

VS
Glass to Steel

Glass to Steel

Tempered glass + aluminum Z-bar Rear material Integral steel Z-bar EGI
Non-flammable
AL melting point (660℃)
Non-flammable properties(1200℃ in case of fire) Super non-flammable
EGI melting point (1500℃)
90.5% Thermal resistance (at 33℃ external temperature)(STC 100%) 92.5%
100% Price 90%
(compared to G to G)
46Kg Weight(based on 1000x2000) 37Kg (20% reduction)
(compared to G to G)