--- title: "Huayao HY650-N156BDD Solar Panel: Specs & Datasheet | ComparePV" description: "Huayao HY650-N156BDD solar panel. Specs: 23.25% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/huayao-hy650-n156bdd" image: "https://comparepv.com/og/panel/huayao-hy650-n156bdd.png" updated: 2026-09-11 --- # Huayao HY650-N156BDD Solid all-round for its segment 254 panels in the segment TOPCon 650-700 W ## Identity - **Manufacturer:** Huayao - **Model:** HY650-N156BDD - **Series:** Hyper N78 - **Rated power:** 650 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 650-700 W (254 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 650 W | 665 W | Weak - bottom 13% | | | Module efficiency | 23.25% | 22.40% | Typical | 1,282 | | Power density | 232.5 | 223.7 | Typical | 1,265 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,152 | | Weight (kg) | 33.5 kg | 34.6 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.25% | 22.40% | Typical | 1,282 | | Power density | 232.5 | 223.7 | Typical | 1,265 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,152 | | Weight per kWp | 51.5 | 53.1 | Typical | 4,941 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 650 W - **Efficiency:** 23.25 % - **Voltage at Pmax (Vmp):** 47.00 V - **Current at Pmax (Imp):** 14.47 A - **Open-circuit voltage (Voc):** 54.01 V - **Short-circuit current (Isc):** 14.68 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 156 - **Bifacial:** yes ### Physical - **Length:** 2465 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 33.5 kg - **Area:** 2.80 m2 - **Power density:** 232.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 568 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1282 of 14129 | | Power density | 1265 of 14129 | | Temperature coefficient | 6152 of 14129 | | Weight | 4941 of 14129 | | Warranty | 21 of 14129 | ## Pros - **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. ## Cons - **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. ## About this series 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. ## Notable figures - Efficiency of 23.2% is 0.9pp above the \*\*TOPCon 650-700W\*\* median (22.4%) - At 232.5 W/m² power density, this panel generates 8.8 W/m² more per unit area than \*\*TOPCon 650-700W\*\* median (223.7 W/m²) - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 650-700W\*\* panels - At 33.5 kg, this panel is 1.1 kg lighter than \*\*TOPCon 650-700W\*\* median (34.6 kg) - easier handling during installation - #1282 for efficiency, #6152 for temperature performance out of 14129 panels ## Questions ### 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. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/1-800fd7bfd619.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +1.9 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +1.9 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +1.8 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +1.8 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +50 W, cooler, +1.8 pp | | [WINAICO WST-675BKX72-A2](https://comparepv.com/panel/winaico-wst-675bkx72-a2) | 675 W | +25 W, cooler, +1.8 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +45 W, cooler, +1.6 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +1.6 pp | | [Huayao HY630-N156BDD](https://comparepv.com/panel/huayao-hy630-n156bdd) | 630 W | -20 W, -0.7 pp | | [Huayao HY635-N156BDD](https://comparepv.com/panel/huayao-hy635-n156bdd) | 635 W | -15 W, -0.5 pp | | [Huayao HY640-N156BDD](https://comparepv.com/panel/huayao-hy640-n156bdd) | 640 W | -10 W, -0.4 pp | | [Huayao HY645-N156BDD](https://comparepv.com/panel/huayao-hy645-n156bdd) | 645 W | Very close match | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | Cooler, lighter, +1.6 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +20 W, cooler, +1.6 pp | --- Source: https://comparepv.com/panel/huayao-hy650-n156bdd Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.