440W Bifacial Solar Panel
Solar Panel
440 W TOPCon bifacial solar panel with 22.53% module efficiency. 30-year power warranty.
Normalized price
$0.52 per watt
$228 listed price
Methodology: lowest in-stock merchant price · normalized to nameplate
tight roof spaces wanting maximum watts/m²
The data
Specifications
Electrical
| Wattage (Pmax) | 440 W |
|---|---|
| Module efficiency (STC) | 22.53% |
| Cell type | TOPCON |
| Bifacial | Yes |
| Open-circuit voltage (Voc) | 38.8 V |
| Short-circuit current (Isc) | 14.39 A |
| Voltage at Pmax (Vmp) | 32.3 V |
| Current at Pmax (Imp) | 13.63 A |
Construction
| Front glass | 2.0mm semi-tempered solar glass with high transmittance and anti-reflective coating (front); 2.0mm semi-tempered solar glass (rear) |
|---|---|
| Frame | Anodized aluminum alloy |
| Cable length | 1200 mm |
| Connector type | STAUBLI |
| Dimensions | 1722 × 1134 × 30 mm |
| Weight | 24.5 kg |
Environmental
| Temp. coefficient (Pmax) | -0.3 %/°C |
|---|---|
| Temp. coefficient (Voc) | -0.25 %/°C |
| Temp. coefficient (Isc) | 0.046 %/°C |
| Mechanical load | 5400 Pa front / 5400 Pa back |
| Operating temp. | -40°C to 85°C |
Warranty & compliance
| Performance warranty | 30 years |
|---|
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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
Price history
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The shortlist
Three alternatives we'd consider
Common questions
What people ask about the 440W Bifacial Solar Panel
Will the Hyundai 440W Bifacial Solar Panel qualify for the federal solar tax credit?
FEOC compliance for Hyundai 440W 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?
Hyundai 440W Bifacial Solar Panel has a Pmax temp coefficient of -0.3%/°C. In summer, panel cells regularly run 25–35°C above ambient — so a 35°C cell at peak sun will lose roughly 10.5% of nameplate power. Panels with coefficients closer to -0.25%/°C (better) lose less in heat than panels at -0.35%/°C (worse). For hot-climate installs (TX, AZ) this gap is real annual production.
What's the realistic bifacial gain on a residential roof?
Hyundai 440W 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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