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Huayao Brand review

HY630-N156BDD

630 Wp TOPCon Bifacial
ComparePV verdict

Middle of its segment, weak in heat

Rank 2,194 of 14,129
Compare panels Datasheet PDF
Power (Wp)
630
Typical for its class
Efficiency (%)
22.54
Typical · median 22.80%
Density (Wp/m²)
225.4
Typical · median 227.7
Temp (%/°C)
-0.300
Weak · bottom 19%
Weight (kg)
33.5
Typical · median 32.8 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Huayao Hyper N78 series is designed specifically for high energy production in real-world installation conditions - even when the roof space is limited or parts of the modules are periodically shaded. The application of modern N-type cells and half-cut architecture helps reduce losses at connections and improves yield stability over time, resulting in greater investment predictability. Against many standard modules, it stands out due to its focus on low long-term power decay and better performance in weaker sunlight, which is particularly important given Poland's weather conditions. The module construction is geared towards high resistance to loads and micro-cracks, making it well-suited for residential roofs, commercial buildings, and smaller PV farms. The Hyper N78 is a sensible choice for investors seeking to combine high efficiency with durability and minimize the risk of losses from degradation and uneven illumination.

Ranking

1,085 panels in the segment TOPCon 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.54% 22.80% Typical 3,979
Power density 225.4 227.7 Typical 3,966
Temperature coefficient -0.300 -0.290 Weak · bottom 19% 6,152
Weight per kWp 53.2 53.1 Typical 7,054
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 5 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Hot climates.

Watch-outs
-0.300 %/°C temperature coefficient

Bottom 19% of the TOPCon 600-650 W segment, against a median of -0.290.

What owners get
N-type TOPCon cell technology

N-type TOPCon cells exhibit degradation ≤0.4%/year and are free from boron-oxygen related LID, compared to conventional PERC modules degrading at 0.45-0.55%/year. This translates into measurably higher energy yield in years 10-30 and better stability under low-irradiance conditions typical of Central European climates.

Bifacial design - rear-side energy gain

The bifacial module architecture captures reflected irradiance from the ground (albedo). With typical concrete or gravel albedo (20-30%), real-world rear-side energy gain reaches 5-15% over a monofacial equivalent, improving LCOE without additional BoS costs.

30-year linear power warranty

Huayao provides a 30-year linear power warranty, exceeding the terms of peer comparables in this power class: Astronergy ASTRO N5 (25 years, ≥84.8% Pnom) and BYD AURO N NLBK-39 (25 years). The extended warranty horizon reduces financial risk for investors in residential and small commercial PV projects.

23.25% efficiency - on par with peers

Maximum module efficiency of 23.25% matches the BYD AURO N NLBK-39 (23.25%) and is marginally below the Astronergy ASTRO N5 (23.3%), within the same 630-650 Wp power class. This power density is sufficient for effective deployment on rooftops with limited available area.

Half-cut + multi-busbar architecture

Splitting cells in half reduces resistive (I²R) losses and limits the impact of partial shading - a shaded half-cell string does not suppress output from the other half. Combined with a multi-busbar design, this improves shade tolerance for rooftops with obstructions such as chimneys or skylights.

Trade-offs
Discontinued series

The Hyper N78 was manufactured only between 2023 and 2024 and is marked as discontinued. This limits availability of new modules for system expansion, complicates warranty replacement of failed units, and raises the risk of reduced long-term technical support from the manufacturer.

Manufacturer not BNEF Tier-1 bankable

Huayao does not appear on BNEF's bankable manufacturer lists (neither Q1 2024 nor Q1 2025). For projects requiring debt or lease financing, the absence of Tier-1 status may complicate loan approval or require additional collateral - unlike peer comparables Jinko Solar, BYD, and Astronergy, all of which hold Tier-1 status.

15-year product warranty

The product (materials & workmanship) warranty is 15 years, whereas Jinko Solar Tiger Neo 66HL4M-BDX and Astronergy ASTRO N5 both offer 25 years. The gap is material when assessing risk of mechanical failures (frame, laminate, bypass diodes) midway through a typical 20-25 year residential PV financing term.

Efficiency below segment leader

The Jinko Solar Tiger Neo 66HL4M-BDX achieves 24.06% efficiency in the same power class (up to 650 Wp), surpassing the Hyper N78's peak of 23.25% by approximately 0.8 percentage points. On a 30 m² rooftop, this translates to roughly 240 Wp of additional installed capacity - significant for space-constrained projects.

Notes from the database
  • At 22.5% efficiency, this panel is on par with typical TOPCon 600-650W modules
  • Power density of 225.4 W/m² matches the TOPCon 600-650W median
  • At -0.30%/°C, hot weather performance is typical for TOPCon 600-650W panels
  • In the top 28% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 630 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.54 % Typical Segment median 22.80%
Vmpp · Impp 44.33 V · 14.23 A Operating point at max power
Voc · Isc 53.22 V · 14.48 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2465×1134×30 mm · 2.80 m² of roof
Weight 33.5 kg Typical Typical · median 32.8 kg
Cells 156 · TOPCon Monocrystalline
Coefficient Pmax -0.300 %/°C Weak bottom 19% of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°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 87.4 % Equals 551 W guaranteed
Degradation 1.00 → 0.40 % 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 630 Wp appear here. The rest cover the whole series.

Guaranteed Power vs. Years - Linear Warranty Curve Guaranteed Power vs. Years - Linear Warranty Curve 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
-0.300 %/°C against a segment median of -0.290
-

Alternatives

All Huayao panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Huayao HY630-N156BDD 630 W 22.54% -0.300 33.5 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +2.7 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +50 W, lighter, +2.7 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +45 W, lighter, +2.5 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +2.5 pp
WST-675BKX72-A2 675 W 25.00% -0.260 32.1 kg +45 W, cooler, +2.5 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +40 W, lighter, +2.3 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +40 W, lighter, +2.3 pp
HY635-N156BDD 635 W 22.71% -0.300 33.5 kg Very close match
HY640-N156BDD 640 W 22.89% -0.300 33.5 kg +10 W, +0.4 pp
HY645-N156BDD 645 W 23.07% -0.300 33.5 kg +15 W, +0.5 pp
HY650-N156BDD 650 W 23.25% -0.300 33.5 kg +20 W, +0.7 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +70 W, cooler, +2.5 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +65 W, cooler, +2.4 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +40 W, cooler, +2.3 pp

Found 616 panels of the same or similar size to this one, within ±10 mm. See them here Found 616 panels of the same or similar size to this one, within ±25 mm. See them here Found 616 panels of the same or similar size to this one, within ±50 mm. See them here Found 1838 panels of the same or similar size to this one, within ±100 mm. See them here

About the Hyper N78 series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

Is the Huayao Hyper N78 series still available for purchase?
The Hyper N78 series has been discontinued and is no longer actively manufactured. Units may still appear in distributor clearance stock, but buyers should be aware of limited availability and potential difficulties sourcing matching modules for future system expansions. It is advisable to consider a current Huayao series or an equivalent TOPCon module in a similar power range from a manufacturer with full production availability.
What warranty does the Huayao Hyper N78 solar panel come with?
The Hyper N78 series carries a 15-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty. The power warranty guarantees that after 30 years of operation the modules will retain at least the declared minimum percentage of their nominal rated power. A 30-year power guarantee exceeds the 25-year standard commonly offered by lower-tier manufacturers, which positively affects the predictability of the investment's return.
What does bifacial mean for the Hyper N78, and does it make a difference on a residential rooftop?
Bifacial technology means the module generates power from both sides by capturing light reflected from the ground or surrounding surfaces. On a typical pitched roof the rear-side gain is limited because albedo access is restricted by the roofing material. The bifacial advantage is most pronounced in ground-mounted systems with light-colored surfaces, ballasted flat-roof installations, or BIPV facades. On a sloped residential roof the additional rear-side energy contribution is usually only a few percent.
Do the TOPCon cells in the Huayao Hyper N78 perform better in winter and low-light conditions than older PERC modules?
Yes, TOPCon technology offers higher efficiency and a better temperature coefficient than PERC cells. In practice, the Hyper N78 converts energy more effectively at low irradiance levels typical of Polish autumn and winter. N-type cells have a lower dark current and significantly reduced LID degradation, which translates into a meaningfully higher annual energy yield under variable real-world irradiance conditions.
Is Huayao a Tier 1 manufacturer, and should that concern me as a buyer?
Huayao is not currently listed among Tier 1 manufacturers according to Bloomberg NEF, meaning it is a smaller market player without a long track record of bankable utility-scale project financing. For a residential prosumer installation this matters less than for large PV farms, but buyers should verify that the modules carry current IEC 61215 and IEC 61730 certifications and that the distributor provides its own warranty support. The absence of Tier 1 status increases risk when it comes to long-term warranty enforcement.
What system size is the 650 Wp Huayao Hyper N78 module best suited for?
Each Hyper N78 module delivers up to 650 Wp at STC, placing it in the large-format commercial segment. A typical residential prosumer system of 5-10 kWp requires only 8 to 16 of these panels. Due to the larger dimensions and weight characteristic of 132 half-cut cell formats, modules of this class are best suited for wide commercial rooftops, flat industrial roofs, and small ground-mounted PV farms where handling large-format modules is practical.
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