--- title: "Jolywood JW-HT108N-R3-445W 445W Solar Panel - Specs & Review | ComparePV" description: "Jolywood JW-HT108N-R3-445W 445W solar panel. Specs: 22.27% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/jolywood-jw-ht108n-r3-445w" updated: 2026-09-11 --- # Jolywood JW-HT108N-R3-445W Solid all-round for its segment 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Jolywood - **Model:** JW-HT108N-R3-445W - **Series:** JW-HT108N Series - **Rated power:** 445 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 445 W | 435 W | Strong - top 8% | | | Module efficiency | 22.27% | 22.00% | Typical | 5,481 | | Power density | 222.7 | 220.2 | Typical | 5,302 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 21.7 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.27% | 22.00% | Typical | 5,481 | | Power density | 222.7 | 220.2 | Typical | 5,302 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 48.8 | 51.4 | Typical | 2,451 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 445 W - **Efficiency:** 22.27 % - **Voltage at Pmax (Vmp):** 33.31 V - **Current at Pmax (Imp):** 13.36 A - **Open-circuit voltage (Voc):** 38.77 V - **Short-circuit current (Isc):** 14.14 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:** 108 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.7 kg - **Area:** 2.00 m2 - **Power density:** 222.7 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:** 389 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5481 of 14005 | | Power density | 5302 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 2451 of 14005 | | Warranty | 21 of 14005 | ## Pros - **J-TOPCon 2.0 – zero LID** - N-type cells with J-TOPCon 2.0 technology eliminate light-induced degradation (LID). Annual power degradation is rated at 0.40%/year (post year-one) vs. 0.55–0.70%/year for PERC modules, translating to a cumulative 3–5% higher energy yield advantage over a 30-year system lifetime. - **Premium efficiency – up to 22.77%** - The JW-HT108N series reaches a peak module efficiency of 22.77%, matching the top peer comparables in the segment (Sunlike SKT420~455M10-108D6: 22.80%, IBC Solar LS-TA2: 22.80%) and significantly exceeding the Waaree ARKA Series (20.93%). On a 20 m² roof, this translates to approximately 1 additional kWp vs. a 20.9%-efficient alternative. - **30-year linear power warranty** - Jolywood guarantees ≥89.4% of nameplate power after 25 years and ≥87.4% after 30 years at a degradation rate of 0.40%/year. Standard PERC Tier-1 competitors (e.g., JA Solar, Trina Solar) cap their power warranty at 25 years at approximately 84.8%, a difference of nearly 2.6 percentage points after a quarter-century of operation. - **Low temperature coefficient (-0.30%/°C)** - According to the official Jolywood datasheet, the temperature coefficient of Pmax is -0.30%/°C — among the lowest for monofacial 108-cell TOPCon modules. At a module surface temperature of +65°C on a hot summer day, the panel loses approximately 12% of rated power, compared to 15–17% for typical PERC modules. - **BNEF Tier-1 bankable manufacturer** - Jolywood is listed on the official BNEF Tier-1 Solar Module Manufacturer ranking (confirmed Q2 2026), certifying its ability to supply modules to projects financed by independent commercial banks. This reduces financing risk for lenders and simplifies loan approval for larger residential and commercial PV installations. ## Cons - **12-year product warranty only** - The JW-HT108N series carries only a 12-year product warranty (covering material and workmanship defects), while leading premium-segment manufacturers — SunPower, Q CELLS Q.PEAK DUO, and even newer Jolywood lines (e.g., JW-HT108N-R3 Asia variant) — offer 15–25 years. The shortened product warranty period may be a barrier for investors with long financing horizons or institutions requiring a minimum 15-year equipment protection clause. ## About this series The Jolywood JW-HT108N series consists of advanced modules based on **innovative N-type TOPCon technology**, which redefines efficiency standards in rooftop installations. By using N-type cells, these panels almost completely eliminate the problem of light-induced degradation (LID), resulting in a significantly longer lifespan and stable energy production for decades. A unique feature of this series is its excellent efficiency in low-light conditions, which in the Polish climate allows for effective electricity generation even on cloudy days. The 108-cell design makes the modules compact and relatively lightweight, which significantly facilitates installation on the roofs of residential buildings with limited space. Investing in these panels means, above all, a **higher energy yield per square meter** and the assurance of an exceptionally slow power decline over time. Unlike standard older-type solutions, the JW-HT108N series is characterized by a **low temperature coefficient**, thanks to which the modules maintain high efficiency even during summer heatwaves. It is an ideal choice for investors looking for premium technology that combines modern aesthetics with maximum resistance to cell aging processes. By choosing Jolywood JW-HT108N, you gain **reliability and a faster return on investment** by minimizing losses and ensuring trouble-free operation in real, variable weather conditions. ## Notable figures - Efficiency of 22.3% matches the \*\*TOPCon 400-450W\*\* median - Power density of 222.7 W/m² matches the \*\*TOPCon 400-450W\*\* median - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 400-450W\*\* median - #5481 for efficiency, #6093 for temperature performance out of 14005 panels ## Questions ### What is TOPCon technology in the Jolywood JW-HT108N panels and is it worth the premium price? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that significantly reduces electron recombination losses. In practice it delivers higher module efficiency, a lower temperature coefficient (-0.30%/°C), and near-zero light-induced degradation (LID). Compared to standard PERC cells, the JW-HT108N series generates more energy per square meter and degrades more slowly over time, resulting in a better return on investment over the system's lifetime. ### What warranty is included with the Jolywood JW-HT108N panels and what does it cover? The JW-HT108N series comes with a 12-year product warranty covering material and workmanship defects, and a 30-year linear power output warranty. The power warranty guarantees at least 87.4% of rated power after 30 years, with an annual degradation rate of approximately 0.4%. Jolywood is a BloombergNEF Tier 1 manufacturer, which provides additional confidence in the long-term validity of these commitments. ### Will Jolywood JW-HT108N panels perform well in cloudy conditions and during winter? Yes. The N-type TOPCon cells in the JW-HT108N series offer superior low-light performance compared to P-type PERC cells, which is especially relevant in climates with frequent overcast skies. In addition, the low temperature coefficient (-0.30%/°C) means that on cold winter days the modules operate at higher instantaneous efficiency than on hot summer days, making them a well-suited choice for northern European and Central European climates. ### What are the dimensions and weight of the JW-HT108N-455 panel — is it easy to install on a residential rooftop? The 455 Wp JW-HT108N panel measures approximately 1722 × 1134 × 30 mm and weighs around 20 kg. This makes it a relatively compact and lightweight module for its power class, simplifying transport on pitched roofs and installation on standard aluminum racking. The 108-cell layout achieves high power output in a smaller footprint than older 60- or 72-cell modules, which is a significant advantage on rooftops with limited available area. ### How much energy will a rooftop system built from JW-HT108N-455 panels generate annually? In Central Europe, a typical rooftop PV system yields roughly 900–1 100 kWh per installed kWp per year, depending on location, roof tilt, and azimuth. A 6 kWp system consisting of approximately 14 JW-HT108N-455 panels can be expected to produce around 5 400–6 600 kWh annually. With an annual power degradation rate of only ~0.4%, the system will still deliver over 90% of its initial output after 25 years of operation. ### How does the Jolywood JW-HT108N series compare to older PERC modules and is it worth the higher cost? The key differences come down to cell technology — N-type TOPCon vs. P-type PERC. TOPCon offers near-zero LID (vs. ~2–3% first-year degradation for PERC), higher module efficiency, better performance at elevated temperatures and in low-light conditions, and a longer power warranty (30 years). Over a 20–30 year system lifetime, the cumulative energy yield advantage can amount to several hundred kWh, which meaningfully improves LCOE and shortens the payback period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/f840afb6a1230902-ceb15476a37b.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +50 W, cooler, +2.5 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +45 W, cooler, +2.2 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +45 W, cooler, +2.2 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +40 W, cooler, +2.0 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +40 W, cooler, +2.0 pp | | [Longi Solar LR7-54HJD-495M](https://comparepv.com/panel/longi-lr7-54hjd-495m) | 495 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +40 W, cooler, +2.0 pp | | [Jolywood JW-HT108N-R3-430W](https://comparepv.com/panel/jolywood-jw-ht108n-r3-430w) | 430 W | -15 W, -0.8 pp | | [Jolywood JW-HT108N-R3 435W](https://comparepv.com/panel/jolywood-taizhou-solar-technology-co-ltd-jw-ht108n-r3-435w) | 435 W | -10 W, cooler, -0.5 pp | | [Jolywood JW-HT108N-R3 440W](https://comparepv.com/panel/jolywood-taizhou-solar-technology-co-ltd-jw-ht108n-r3-440w) | 440 W | Cooler, -0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +65 W, cooler, +2.7 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +60 W, cooler, +2.4 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +55 W, cooler, +2.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/jolywood-jw-ht108n-r3-445w 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.