450W Bifacial Solar Panel
Solar Panel
450 W TOPCon bifacial solar panel with 23% module efficiency.
Normalized price
$0.39 per watt
$175 listed price
Methodology: lowest in-stock merchant price · normalized to nameplate
tight roof spaces wanting maximum watts/m²
The data
Specifications
Electrical
| Wattage (Pmax) | 450 W |
|---|---|
| Module efficiency (STC) | 23% |
| Cell type | TOPCON |
| Bifacial | Yes |
| Open-circuit voltage (Voc) | 39.6 V |
| Short-circuit current (Isc) | 13.87 A |
| Voltage at Pmax (Vmp) | 33.2 V |
| Current at Pmax (Imp) | 13.56 A |
Construction
| Front glass | 2.0mm AR Coating Semi-tempered Glass (front); 2.0mm Glazed Semi-tempered Glass (back) |
|---|---|
| Frame | Anodized Aluminium Alloy |
| Output cable | 4 mm² |
| Cable length | 350 mm |
| Connector type | MC4 |
| Dimensions | 1722 × 1134 × 30 mm |
| Weight | 24.5 kg |
Environmental
| Temp. coefficient (Isc) | 0.043 %/°C |
|---|
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Editorial
Best for, watch out for
Best for
- tight roof spaces wanting maximum watts/m²
- ground-mount or albedo-friendly install with bifacial gain
The market
Price history
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The shortlist
Three alternatives we'd consider
Common questions
What people ask about the 450W Bifacial Solar Panel
Will the Talesun 450W Bifacial Solar Panel qualify for the federal solar tax credit?
FEOC compliance for Talesun 450W Bifacial Solar Panel hasn't been independently confirmed by us. Section 25D — the residential ITC — expired Jan 1, 2026, so for cash purchases the question is moot. For leases or TPO, ask the installer to provide manufacturer FEOC documentation before signing.
What does the warranty actually cover?
Warranty terms for this specific module are not yet in our verified data set. Always confirm both the product (defects/workmanship) and the linear performance terms with the installer or the published datasheet before purchase.
How does the temperature coefficient affect real-world output?
Panel cells in summer regularly run 25–35°C above ambient air temperature, and every panel loses some output as temperature rises. Panels with Pmax temperature coefficients closer to -0.25%/°C lose less power in heat than panels at -0.35%/°C — meaningful in hot climates like TX or AZ.
What's the realistic bifacial gain on a residential roof?
Talesun 450W Bifacial Solar Panel is bifacial. Realistic gain on a residential roof is much lower than the spec — typically 2–5% — because most roofs sit close to the rafters with dark underlayment that absorbs (rather than reflects) light. Bifacial pays back better on ground mounts over white gravel or on light-colored roofing. On a standard composition-shingle roof, treat the bifacial gain as a small bonus, not a planning assumption.
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