--- title: "Jolywood JW-HT144N-565 565W Solar Panel - Specs & Review | ComparePV" description: "Jolywood JW-HT144N-565 565W solar panel. Specs: 21.87% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/jolywood-jw-ht144n-565" updated: 2026-09-11 --- # Jolywood JW-HT144N-565 Light for its output, modest efficiency 1,018 panels in the segment TOPCon 550-600 W ## Identity - **Manufacturer:** Jolywood - **Model:** JW-HT144N-565 - **Series:** JW-HT144N Series - **Rated power:** 565 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 550-600 W (1018 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 565 W | 580 W | Weak - bottom 17% | | | Module efficiency | 21.87% | 22.44% | Weak - bottom 19% | 6,908 | | Power density | 218.7 | 224.4 | Weak - bottom 20% | 6,841 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 27.5 kg | 31.2 kg | Strong - top 22% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.87% | 22.44% | Weak - bottom 19% | 6,908 | | Power density | 218.7 | 224.4 | Weak - bottom 20% | 6,841 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 48.7 | 53.8 | Strong - top 22% | 2,406 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **48.7 kg per kWp** - Top 22% of the TOPCon 550-600 W segment, against a median of 53.8. ### Watch out for - **21.87% module efficiency** - Bottom 19% of the TOPCon 550-600 W segment, against a median of 22.44%. - **218.7 watts per square metre** - Bottom 20% of the TOPCon 550-600 W segment, against a median of 224.4. - **Best for:** Utility-scale, commercial and hot-climate. - **Not ideal for:** Tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 565 W - **Efficiency:** 21.87 % - **Voltage at Pmax (Vmp):** 42.60 V - **Current at Pmax (Imp):** 13.27 A - **Open-circuit voltage (Voc):** 50.88 V - **Short-circuit current (Isc):** 14.18 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:** 0.045 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 144 - **Bifacial:** yes ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 27.5 kg - **Area:** 2.58 m2 - **Power density:** 218.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 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:** 494 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6908 of 14005 | | Power density | 6841 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 2406 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon pioneer — zero LID/LETID** - Jolywood was the first to commercialize TOPCon at industrial scale — ahead of LONGi, JA Solar, and Jinko — and set the N-type M10 cell efficiency world record at 26.7% in 2023. N-type silicon substrate eliminates LID and LETID degradation inherent to P-type PERC, translating to a real 1–3% higher lifetime energy yield in long-term simulation models. - **Module efficiency 21.87–22.84%** - The top variant (590 Wp) achieves 22.84% module efficiency — virtually tied with the best-in-class peer AE Solar HORIZON CMD-144BDS (22.86%) and ahead of Talesun TM7G72M (22.8%) and Horay HS 182-144 TC-D (22.8%). Six power bins (565–590 Wp) allow precise matching to projects with varying mechanical or electrical constraints. - **30-year linear power warranty ≥87.4% Pmax** - Warranted output levels: ≥99% in Year 1, ≥89.4% at Year 25, and ≥87.4% at Year 30, with a guaranteed annual degradation rate of 0.40%/year — materially better than the 0.45–0.55%/year typical of PERC modules. The 30-year term is 5 years longer than the standard 25-year warranty offered by peer comparables in this power class (Talesun, Horay Solar, AE Solar). - **Bifacial design + low temperature coefficient –0.28%/°C** - Bifacial architecture captures additional power from ground albedo, typically adding 5–25% yield depending on surface reflectivity. The temperature coefficient of Pmax is –0.28%/°C versus –0.35%/°C for PERC, meaning lower thermal losses during peak irradiance hours — a meaningful advantage in Mediterranean climates and during European summer heat events. - **BNEF Tier-1 bankable (Q2 2026)** - Jolywood holds BloombergNEF Tier-1 status as of Q2 2026, confirming eligibility for non-recourse project finance with independent banks. The 16 GW TOPCon cell factory in Shanxi province provides supply continuity and volume scalability for large EPC contracts. ## Cons - **2020 vintage — superseded by JW-HT144N-R0** - The successor JW-HT144N-R0 already delivers 585–610 Wp and up to 23.4% module efficiency — 0.56 percentage points above this series' top variant (22.84%). For projects contracted in 2026, the newer generation provides higher specific yield on identical BoS infrastructure, weakening the economic case for specifying the JW-HT144N in new-build investments. - **Smaller scale vs. Big 4 — limited EU service network** - At ~16 GW TOPCon cell capacity, Jolywood is substantially smaller than Jinko (~80 GW), JA Solar (~70 GW), or LONGi (~60 GW). Fewer European regional offices and certified service partners may result in slower warranty claim turnaround compared to top-tier suppliers with established in-country support infrastructure. ## About this series The Jolywood JW-HT144N series is based on pioneering **N-type TOPCon cell technology**, which sets new standards for efficiency in challenging lighting and atmospheric conditions. Thanks to the use of an N-type silicon-based architecture, these modules completely eliminate the problem of light-induced degradation (LID), which translates into significantly higher energy yields throughout the entire life cycle of the installation. Their unique feature is **exceptional bifaciality**, allowing for the generation of additional power from radiation reflected from the ground, making them an ideal choice for solar farms and large commercial projects. These panels solve the problem of efficiency drops on hot days thanks to a **low temperature coefficient**, which guarantees stable operation even in extreme sunlight. The JW-HT144N series stands out from the competition with its excellent resistance to PID phenomena and corrosion caused by salt spray or ammonia, making it perfect for demanding industrial and agricultural locations. By choosing these modules, investors gain a **30-year linear performance warranty**, which, combined with an innovative design that minimizes the risk of micro-cracks, provides solid capital protection. This is a solution for professionals who focus on maximum profitability and the most modern technology currently available on the photovoltaic market. ## Notable figures - Module efficiency of 21.9% is 0.6pp below average for \*\*TOPCon 550-600W\*\* panels (median: 22.4%) - At 218.7 W/m², this panel generates 5.7 W/m² less per unit area than \*\*TOPCon 550-600W\*\* median (224.4 W/m²) - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 550-600W\*\* median - At 27.5 kg, this panel is 3.7 kg lighter than \*\*TOPCon 550-600W\*\* median (31.2 kg) - easier handling during installation - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### What is the temperature coefficient of the Jolywood JW-HT144N panels and do they perform well on hot days? The JW-HT144N Series features a low temperature coefficient of Pmax at -0.28%/°C, ranking among the best in its class. This means that when module temperatures exceed 25°C, power loss is significantly smaller than with conventional PERC cells. In practice, during summer when module temperatures climb above 60°C, energy losses remain minimal, resulting in higher annual energy yield compared to standard panels. ### How does the TOPCon technology in the JW-HT144N Series differ from mainstream PERC cells? The N-type TOPCon cells in the JW-HT144N Series incorporate an additional tunnel oxide and polysilicon passivation layer on the rear side, dramatically reducing carrier recombination. As a result, module efficiency reaches 22.7–23.6%, roughly 1–2 percentage points higher than typical PERC. Crucially, the N-type substrate completely eliminates light-induced degradation (LID), which gradually weakens PERC cells throughout their operational life. ### What warranties does Jolywood provide on the JW-HT144N Series? Jolywood backs the JW-HT144N Series with a 12-year product and workmanship warranty and a 30-year linear performance warranty. Under this guarantee, first-year degradation is capped at 1%, with subsequent annual degradation not exceeding 0.40%. After 30 years, the module retains at least 87.4% of its initial rated power. These are among the most competitive warranty terms available from a Tier 1 manufacturer. ### Does the bifacial design of the Jolywood JW-HT144N pay off in real-world installations? Yes, the bifacial cells of the JW-HT144N Series can generate an additional 5–25% energy from albedo-reflected irradiance, depending on ground surface (light gravel or snow yield the best results). In ground-mount and flat commercial rooftop installations with a reflective white membrane, bifacial gain is measurable and consistent. The benefit is most significant in open-rack ground arrays where the rear side has unobstructed access to reflected light. ### What are the physical dimensions of the Jolywood JW-HT144N 590W panel and is it compatible with standard racking systems? The JW-HT144N 590W module measures 2278×1134×30 mm and weighs approximately 32 kg. This large-format footprint — featuring 144 half-cut cells — is optimized for utility-scale ground-mount arrays and large commercial flat-roof installations. For residential sloped-roof projects, the size may complicate logistics and mounting; consult your installer to confirm compatibility with your specific racking system and roof structure. ### Are the Jolywood JW-HT144N modules resistant to PID and harsh environments such as salt mist and ammonia? Yes, the JW-HT144N modules are certified for resistance to potential-induced degradation (PID), which is critical in large string systems operating at high DC voltages. Jolywood also certifies resistance to salt mist corrosion (IEC 61701) and ammonia (IEC 62716). This makes the series well suited for coastal installations and sites near industrial facilities or livestock farms where aggressive airborne contaminants are a concern. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Jolywood_565-590W_JW-HT144N_N-type_Bifacial_Single_Mono-bd58eebada8c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +2.9 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +2.7 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, lighter, +2.5 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | Cooler, lighter, +2.5 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | Cooler, lighter, +2.5 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | -20 W, cooler, +2.4 pp | | [Longi Solar LR7-60HVH-545M](https://comparepv.com/panel/longi-lr7-60hvh-545m) | 545 W | Cooler, lighter, +2.3 pp | | [Jolywood JW-HD144N-R0-570W](https://comparepv.com/panel/jolywood-taizhou-solar-technology-co-ltd-jw-hd144n-r0-570w) | 570 W | Cooler, heavier, +0.2 pp | | [Jolywood JW-HD144N-R0-575W](https://comparepv.com/panel/jolywood-taizhou-solar-technology-co-ltd-jw-hd144n-r0-575w) | 575 W | Cooler, heavier, +0.4 pp | | [Jolywood JW-HD144N-R0-580W](https://comparepv.com/panel/jolywood-taizhou-solar-technology-co-ltd-jw-hd144n-r0-580w) | 580 W | Cooler, heavier, +0.6 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +85 W, cooler, +3.3 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +80 W, cooler, +3.1 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +75 W, cooler, +2.9 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +70 W, cooler, +2.7 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +65 W, heavier, +2.5 pp | --- Source: https://comparepv.com/panel/jolywood-jw-ht144n-565 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.