--- title: "Jolywood JW-HT132N-R2-615 615W Solar Panel - Specs & Review | ComparePV" description: "Jolywood JW-HT132N-R2-615 615W solar panel. Specs: 22.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/jolywood-taizhou-solar-technology-co-ltd-jw-ht132n-r2-615" updated: 2026-09-11 --- # Jolywood JW-HT132N-R2-615 Strong in heat, no clear weak spot 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Jolywood - **Model:** JW-HT132N-R2-615 - **Series:** JW Plus Series - **Rated power:** 615 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 600-650 W (1086 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 615 W | 620 W | Typical | | | Module efficiency | 22.80% | 22.80% | Typical | 2,714 | | Power density | 227.7 | 227.7 | Typical | 3,077 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 7% | 1,309 | | Weight (kg) | 29.7 kg | 32.7 kg | Strong - top 15% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.80% | 22.80% | Typical | 2,714 | | Power density | 227.7 | 227.7 | Typical | 3,077 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 7% | 1,309 | | Weight per kWp | 48.3 | 53.1 | Strong - top 15% | 2,186 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.280 %/°C temperature coefficient** - Top 7% of the TOPCon 600-650 W segment, against a median of -0.290. Ranked 1,309th in the whole database. - **48.3 kg per kWp** - Top 15% of the TOPCon 600-650 W segment, against a median of 53.1. - **Best for:** Commercial, utility-scale, shaded-installations and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 615 W - **Efficiency:** 22.80 % - **Voltage at Pmax (Vmp):** 40.92 V - **Current at Pmax (Imp):** 15.03 A - **Open-circuit voltage (Voc):** 47.69 V - **Short-circuit current (Isc):** 15.87 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.280 %/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:** 132 - **Bifacial:** yes ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 29.7 kg - **Area:** 2.70 m2 - **Power density:** 227.7 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:** 538 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2714 of 14005 | | Power density | 3077 of 14005 | | Temperature coefficient | 1309 of 14005 | | Weight | 2186 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon – low Tpmax & LID immunity** - N-type TOPCon cells deliver a temperature coefficient of Pmax of -0.28%/°C versus -0.35 to -0.45%/°C for standard PERC modules. This translates into measurably higher energy yield during summer heat and eliminates the LID degradation issue inherent to p-type technology. - **30-year linear power warranty (87.4% retention)** - Jolywood guarantees no more than 1% power loss in year 1 and ≤0.4%/year thereafter, maintaining a minimum of 87.4% of rated power at year 30. The 30-year warranty horizon places JW Plus in the premium tier for LCOE predictability over the full project lifecycle. - **80% bifaciality – rear-side gain at no extra BoS cost** - JW Plus modules achieve ~80% bifaciality, delivering a real-world energy gain of 5–15% over monofacial equivalents in ground-mounted applications with albedo of 0.25–0.5 (e.g., white roofing membranes, light-colored gravel). Most beneficial for utility-scale and C&I ground-mount systems. - **BNEF Tier-1 bankable manufacturer, confirmed Q1 2026** - Jolywood maintains BNEF Tier-1 Bankable Manufacturer status as of Q1 2026, evidencing module supply to ≥6 projects above 10 MW financed by independent commercial banks. Publicly listed since 2014 with a market cap of ~USD 1.68 billion and total assets of ~USD 2.6 billion, significantly reducing warranty counterparty risk. - **Kiwa PVEL Top Performer – 3 consecutive years (through 2024)** - Jolywood earned Top Performer status in the Kiwa PVEL PV Module Reliability Scorecard for the third consecutive year (2022–2024), covering thermal cycling, damp heat, PID resistance, and mechanical load tests. This independent third-party validation goes beyond manufacturer datasheets. ## Cons - **Thinner European service network vs. LONGi/JA Solar** - Despite having a Polish distributor (Energia Pomorze) and a LinkedIn-listed Jolywood Europe showcase, the after-sales and warranty service network in Central Europe remains significantly smaller than those of LONGi or JA Solar, which operate regional technical support hubs. For large C&I or utility installations (>1 MWp), this may translate into longer warranty claim resolution times. - **2024 release – no multi-year field data** - JW Plus launched in 2024, meaning there is no multi-season field performance record from Central European continental climate installations. The stated 0.4%/year degradation rate is backed by PVEL lab testing, not real-world data spanning full winter-summer cycles in the target market. ## About this series Jolywood JW Plus series is designed to maximize yield in real-world conditions - where performance isn’t measured just by wattage on the label, but also by stable operation year after year. These are **bifacial** modules based on **n-type TOPCon cells**, which handle typical operational challenges better: reduced power output under lower irradiance, losses in high temperatures, and performance degradation over time. Dual-sided light absorption helps utilize reflected light from the ground surface, which is particularly beneficial on light-coloured roofs, rooftop structures, and anywhere where surface reflectivity can be controlled. The approach to longevity is also noteworthy - the series prioritizes **low degradation** and resistance to phenomena like LID, while the construction supports **high reliability** over a long operational lifespan. JW Plus is an outstanding choice for commercial and industrial installations, utility-scale solar farms, and demanding rooftop applications, where yield, predictability, and project profitability are key. ## Notable figures - At 22.8% efficiency, this panel is on par with typical \*\*TOPCon 600-650W\*\* modules - At 227.7 W/m² power density, roof space requirements are typical for \*\*TOPCon 600-650W\*\* panels - At -0.28%/°C, hot weather performance is typical for \*\*TOPCon 600-650W\*\* panels - At 29.7 kg, this panel is 3.0 kg lighter than \*\*TOPCon 600-650W\*\* median (32.7 kg) - easier handling during installation - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces ## Questions ### What warranty do Jolywood JW Plus Series panels come with? The JW Plus Series includes a 12-year product warranty covering material and workmanship defects, plus a 30-year linear power warranty. After 30 years, the panel is guaranteed to retain at least 87.4% of its rated initial power, with an annual degradation rate of just 0.40%. This is a notable advantage over many PERC modules, which typically offer only a 25-year power warranty with a higher allowable power loss. ### When does the bifacial design of Jolywood JW Plus panels pay off — what's the realistic bifacial energy gain? The bifacial n-type TOPCon cells can deliver 5–15% additional energy when the installation allows reflected light to reach the rear surface of the module. Best results come from light-colored surfaces such as white gravel, concrete, snow, or grass with adequate panel clearance. On typical pitched roofs with minimal clearance, the bifacial gain is marginal — but the high front-side efficiency of n-type TOPCon cells still outperforms older PERC technology in overall yield. ### How does the TOPCon technology in the JW Plus Series differ from standard PERC panels? TOPCon (Tunnel Oxide Passivated Contact) uses n-type cells, which offer a lower temperature coefficient, higher efficiency, and significantly better resistance to light-induced degradation (LID). PERC panels rely on p-type cells that are less expensive but lose more power in heat and degrade faster over time. The JW Plus Series achieves an annual degradation rate of around 0.40% and better low-irradiance performance, resulting in measurably higher energy yield over a 30-year system lifetime. ### How do Jolywood JW Plus panels handle high temperatures — how much power do they lose during summer heat? The temperature coefficient of the JW Plus Series is approximately –0.28 to –0.30%/°C, which is noticeably lower than typical PERC panels at around –0.35%/°C. At a cell temperature of 70°C, common on hot summer days, the module loses roughly 12–15% relative to STC ratings, compared to 15–18% for older technologies. In practice, this translates to meaningfully higher energy output during peak summer production hours, improving overall annual yield. ### Are Jolywood JW Plus panels a good fit for a utility-scale solar farm or large commercial installation? Yes, the JW Plus Series is specifically designed for commercial rooftop, industrial, and utility-scale PV applications. With up to 625 Wp per panel, fewer modules are needed, directly reducing BoS (Balance of System) costs such as racking, cabling, and inverter inputs. The low degradation rate, LID resistance, and 30-year linear power warranty are critical in LCOE analysis — lower power losses over decades of operation translate to a better return on investment for large-scale projects. ### Is Jolywood a reliable solar panel manufacturer — are they listed as Tier 1? Jolywood is listed as a Tier 1 manufacturer by Bloomberg NEF, meeting stringent financial, production, and quality requirements. The company is widely recognized as one of the pioneers of mass-market TOPCon and n-type cell technology in the PV industry. Tier 1 status simplifies project bank financing and signals long-term manufacturer stability — an important factor when evaluating a supplier backed by 30-year power warranties. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/2ad8145676501da2-32ecf71439e5.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +35 W, lighter, +2.4 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +30 W, lighter, +2.2 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +25 W, lighter, +2.0 pp | | [Longi Solar LR8-66HVD-665M](https://comparepv.com/panel/longi-lr8-66hvd-665m) | 665 W | +50 W, heavier, +1.8 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (665W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-665w-class) | 665 W | +50 W, heavier, +1.8 pp | | [Huayao HY665-B144DSS](https://comparepv.com/panel/huayao-hy665-b144dss) | 665 W | +50 W, lighter, +1.8 pp | | [Sunpro Power SPDG665-BC132R12](https://comparepv.com/panel/sunpro-spdg665-bc132r12) | 665 W | +50 W, heavier, +1.8 pp | | [Jolywood JW-HD132N-R2 595W](https://comparepv.com/panel/jolywood-taizhou-solar-technology-co-ltd-jw-hd132n-r2-595w-1) | 595 W | -20 W, heavier, -0.8 pp | | [Jolywood JW-HD132N-R2-600W](https://comparepv.com/panel/jolywood-taizhou-solar-technology-co-ltd-jw-hd132n-r2-600w) | 600 W | -15 W, heavier, -0.6 pp | | [Jolywood JW-HD132N-R2-605W](https://comparepv.com/panel/jolywood-taizhou-solar-technology-co-ltd-jw-hd132n-r2-605w) | 605 W | -10 W, heavier, -0.4 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +65 W, cooler, +2.4 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +60 W, cooler, +2.2 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +85 W, heavier, +2.2 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +80 W, heavier, +2.1 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +55 W, cooler, +2.0 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +55 W, cooler, +2.0 pp | --- Source: https://comparepv.com/panel/jolywood-taizhou-solar-technology-co-ltd-jw-ht132n-r2-615 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.