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HY635-B144DDD

635 Wp Back Contact Bifacial
ComparePV verdict

Solid all-round for its segment

Rank 1,447 of 14,005
Compare panels Datasheet PDF
Power (Wp)
635
Typical for its class
Efficiency (%)
23.51
Typical · median 23.70%
Density (Wp/m²)
235.1
Typical · median 236.9
Temp (%/°C)
-0.260
Typical · median -0.260
Weight (kg)
32.5
Typical · median 32.3 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Huayao Hyper B72 series are modules designed for maximum yield in large-scale installations - where high single-panel power output and efficient installation workflows matter. Variants in this family utilize large-cell formats and the half-cut layout, which helps minimize module losses and ensures stable operation under partial shading (e.g., from roof tiles, chimneys, or adjacent rows). In practice, this translates to more predictable energy production in real-world conditions.

Available in the range are also bifacial versions, capable of further harnessing reflected light from the ground - a clear advantage on white membrane roofs, gravel surfaces, or elevated setups. Designed for high reliability and compatibility with standard design infrastructure, they simplify selection for PV farms, warehouses, industrial facilities, and large commercial roofs. The Hyper B72 series stands out with its approach of 'more energy from the same footprint' without complicating the design, setting it apart from many series focused solely on catalog parameters.

Ranking

72 panels in the segment Back Contact 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.51% 23.70% Typical 696
Power density 235.1 236.9 Typical 741
Temperature coefficient -0.260 -0.260 Typical 511
Weight per kWp 51.2 50.4 Typical 4,557
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

4 positive · 3 caution
Best for

Utility-scale, commercial and shaded-installations.

What owners get
Back Contact: 23.51–24.80% efficiency

Eliminating front-side metallization in Back Contact cells removes shading losses from busbars, enabling up to 24.80% module efficiency — +3.2 pp above Hiwatt HW-M12/132H (21.6%) and +3.23 pp above Techwise Summit and ZNShine ZXM8-TP132 (21.57%). In practice this translates to roughly 15–20 kWp more installed capacity per 1,000 m² of roof area compared to these peer comparables.

Up to 670 Wp per module, 12 variants

The 635–670 Wp range across 12 variants gives system designers flexibility to optimize string sizing and module count for specific roof layouts or field configurations. For large-scale installations (PV farms, warehouses, commercial rooftops), the broader power spread reduces leftover panel mismatches and simplifies MPPT selection.

30-year linear power warranty

The manufacturer provides a 30-year linear power warranty — longer than the 25-year standard offered by leading Tier-1 manufacturers (JA Solar, Trina, Jinko). The extended horizon improves LCOE modeling in projects with long financing periods.

Clear technology edge over peer comparables

Back Contact technology is among the highest-efficiency commercially available silicon cell architectures (alongside HJT). Per the ITRPV (2025 edition), BC modules are already delivering 24%+ in mass production and are on track for 26% by 2028, while the listed peer comparables in the same power class rely on older cell designs at ~21.57–21.6% efficiency.

Trade-offs
Not on BNEF Tier-1 list (Q1 2026)

Huayao does not appear on the BNEF bankable manufacturer Tier-1 list as of Q1 2026. For projects requiring bank financing or EPC insurance, this may trigger additional due diligence requirements or outright supplier disqualification — a hurdle absent when specifying JA Solar, Trina Solar, or LONGi.

15-year product warranty — below premium standard

The product (workmanship) warranty is 15 years, whereas leading Tier-1 manufacturers (JA Solar, Trina Solar, Jinko Solar) offer a standard 25-year product warranty. Over a typical 20–25-year investment cycle, the 10-year gap represents meaningful latent-defect coverage risk for the asset owner.

Monofacial-only series

Back Contact cell architecture is technically well-suited to bifacial designs (cf. AIKO ABC bifacial, Maxeon 7), yet the Hyper B72 series offers no bifacial variant. The monofacial constraint foregoes 5–20% additional annual energy yield from ground-reflected albedo, a notable loss for ground-mount systems on light gravel or flat roofs with white TPO/PVC membranes.

Notes from the database
  • At 23.5% efficiency, this panel is on par with typical Back Contact 600-650W modules
  • Power density of 235.1 W/m² matches the Back Contact 600-650W median
  • Temperature coefficient of -0.26%/°C matches the Back Contact 600-650W median
  • #696 for efficiency, #511 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 635 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.51 % Typical Segment median 23.70%
Vmpp · Impp 45.04 V · 14.10 A Operating point at max power
Voc · Isc 53.75 V · 14.86 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2382×1134×30 mm · 2.70 m² of roof
Weight 32.5 kg Typical Typical · median 32.3 kg
Cells 144 · Back Contact Monocrystalline
Coefficient Pmax -0.260 %/°C Typical median -0.260 of its segment
Coefficient Voc · Isc -0.220 · 0.050 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 88.8 % Equals 564 W guaranteed
Degradation 1.00 → 0.35 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Huayao in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 635 Wp appear here. The rest cover the whole series.

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.260 %/°C against a segment median of -0.260
-

Alternatives

All Huayao panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Huayao HY635-B144DDD 635 W 23.51% -0.260 32.5 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +15 W, lighter, +1.7 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +45 W, lighter, +1.7 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +40 W, lighter, +1.5 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +10 W, lighter, +1.5 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +35 W, lighter, +1.3 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +35 W, lighter, +1.3 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Lighter, +1.3 pp
HY605-N132EDD 605 W 22.40% -0.300 33.6 kg -30 W, hotter, -1.1 pp
HY610-N132EDD 610 W 22.58% -0.300 33.6 kg -25 W, hotter, -0.9 pp
HY615-N132EDD 615 W 22.77% -0.300 33.6 kg -20 W, hotter, -0.7 pp
HY620-N132EDD 620 W 22.95% -0.300 33.6 kg -15 W, hotter, -0.6 pp
HY625-N132EDD 625 W 23.14% -0.300 33.6 kg Hotter, heavier, -0.4 pp
HSM-BD72-WC630 630 W 23.30% -0.260 28.1 kg Lighter, -0.2 pp
HY640-B144DDD 640 W 23.69% -0.260 32.5 kg Very close match
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +65 W, heavier, +1.5 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +60 W, heavier, +1.4 pp

Found 1119 panels of the same or similar size to this one, within ±10 mm. See them here Found 1125 panels of the same or similar size to this one, within ±25 mm. See them here Found 1236 panels of the same or similar size to this one, within ±50 mm. See them here Found 1917 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is Back Contact cell technology and why does the Huayao Hyper B72 series use it?
In Back Contact technology, all electrical connections (busbars) are relocated to the rear side of the cell, leaving the entire front surface active for light absorption with no metal shading. This raises module efficiency and increases energy yield per square meter of roof or ground area. In the Hyper B72 series, it translates to measurably higher power output compared with conventional PERC modules of the same rated wattage.
What is the maximum power output of the Huayao Hyper B72 series?
The top variant in the Huayao Hyper B72 series reaches 670 Wp. This wattage level targets large commercial installations, utility-scale PV farms, and industrial facilities. Higher per-panel output reduces the total module count needed for a given system capacity, simplifying wiring, lowering Balance of System (BoS) costs, and shortening installation time.
What warranties does the Huayao Hyper B72 come with?
Huayao provides a 15-year product warranty covering manufacturing defects and structural integrity, plus a 30-year linear power output warranty. The 30-year power guarantee is the commercial-grade standard and ensures the panel retains a specified percentage of its rated efficiency over that period, in accordance with the degradation curve stated in the datasheet.
How do Huayao Hyper B72 panels handle partial shading from chimneys or parapets?
The Hyper B72 combines a large-format cell design with a half-cut layout, which splits each cell in two and reduces current losses when part of the module is shaded. In practice, obstructions such as chimneys, parapets, or adjacent panel rows have a smaller impact on overall system output. The module operates more consistently and delivers more predictable energy production under real-world conditions.
Is Huayao a Tier 1 solar manufacturer, and does it matter when buying panels?
Huayao is not classified as a Tier 1 manufacturer by Bloomberg NEF rankings. It is important to note that Tier 1 status is a financial criterion related to project bankability, not a direct measure of panel technical quality. When evaluating modules, focus on available certifications (IEC 61215, IEC 61730), warranty terms, and the reputation of the local distributor who handles warranty claims.
What types of installations is the Huayao Hyper B72 series best suited for?
The Hyper B72 is designed for large-scale projects: utility-scale PV farms, warehouses, industrial buildings, and large commercial rooftops. With output up to 670 Wp and a large-format half-cut cell layout, scaling the system is straightforward — fewer modules for the same installed capacity means lower labor costs, fewer electrical connections, and simpler on-site logistics.
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