--- title: "JS Solar JS415M108HBC 415W Solar Panel - Specs & Review | ComparePV" description: "JS Solar JS415M108HBC 415W solar panel. Specs: 21.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/js-solar-js415m108hbc" updated: 2026-09-11 --- # JS Solar JS415M108HBC Strong in heat, no clear weak spot 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** JS Solar - **Model:** JS415M108HBC - **Series:** Athena (JSHI-M0) - **Rated power:** 415 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 400-450 W (954 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 415 W | 410 W | Typical | | | Module efficiency | 21.30% | 20.60% | Strong - top 8% | 8,519 | | Power density | 212.5 | 206.2 | Strong - top 11% | 8,791 | | Temperature coefficient | -0.290 | -0.350 | Strong - top 2% | 2,165 | | Weight (kg) | 20.8 kg | 22.0 kg | Strong - top 20% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.30% | 20.60% | Strong - top 8% | 8,519 | | Power density | 212.5 | 206.2 | Strong - top 11% | 8,791 | | Temperature coefficient | -0.290 | -0.350 | Strong - top 2% | 2,165 | | Weight per kWp | 50.1 | 53.0 | Strong - top 20% | 3,625 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **-0.290 %/°C temperature coefficient** - Top 2% of the PERC 400-450 W segment, against a median of -0.350. Ranked 2,165th in the whole database. - **21.30% module efficiency** - Top 8% of the PERC 400-450 W segment, against a median of 20.60%. Ranked 8,519th in the whole database. - **212.5 watts per square metre** - Top 11% of the PERC 400-450 W segment, against a median of 206.2. - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 415 W - **Efficiency:** 21.30 % - **Voltage at Pmax (Vmp):** 32.56 V - **Current at Pmax (Imp):** 12.75 A - **Open-circuit voltage (Voc):** 38.83 V - **Short-circuit current (Isc):** 13.78 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.230 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 108 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 20.8 kg - **Area:** 1.95 m2 - **Power density:** 212.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 88.9 % - **First-year degradation:** 1.50 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 361 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8519 of 14005 | | Power density | 8791 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 3625 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Half-cut cell architecture with HBC technology** - The half-cut cell design (108 cells) splits the module into two independent halves, reducing resistive losses and improving performance under partial shading. The HBC (Hidden Busbar Connection) technology eliminates visible solder busbars, cutting optical losses by approximately 0.5–1% versus conventional busbar designs while enhancing module aesthetics. - **21–22% efficiency — on par with segment leaders** - The Athena series' peak efficiency of 22% matches peer SunLink SL5M108 and nearly matches VSUN N-108MH-BW (22.02%), and clearly outperforms Silfab Elite (21.4%). This delivers comparable energy yield per roof area without the price premium typically associated with Tier-1 manufacturers. - **PID resistance** - Verified resistance to Potential-Induced Degradation (PID) is critical in systems with long DC strings (voltage >1000 V), common in three-phase residential and small commercial installations. Unmitigated PID can cause cumulative power losses of up to 30% over the module's operational lifetime. - **IP68-rated junction box** - An IP68 ingress protection rating ensures the junction box withstands continuous water immersion — a meaningful reliability factor in the Polish climate with heavy rainfall and prolonged snow coverage. This is a premium-tier specification not universally offered in this power and price segment. - **5 power variants, 410–430 Wp** - Five power variants spaced 5 Wp apart allow precise MPPT window matching for the string inverter without power mismatch losses. This is a practical advantage in residential and small-commercial installations where the total number of modules per string is limited. ## Cons - **PERC technology — higher degradation vs. TOPCon** - P-type PERC cells exhibit Light-Induced Degradation (LID) of 1.5–3% in initial weeks of operation and an annual degradation rate of ~0.6–0.8%/yr, compared to TOPCon n-type modules at \<0.5% LID and ~0.4–0.5%/yr annual degradation. After 25 years, PERC retains approximately 82–84% of rated power versus 85–87% for TOPCon — a residual power difference of ~13–22 Wp for a 430 Wp module. The market shift from PERC to TOPCon accelerated significantly in 2024–2025. - **Not on BNEF Tier-1 bankable list** - JS Solar is absent from the BNEF Tier-1 bankable manufacturers list (Q1 2026), as confirmed by the product context (tier\_1\_bankable: false). This limits eligibility for non-recourse bank financing on commercial projects and may disqualify the series from institutional or corporate tenders requiring a bankable manufacturer guarantee. - **15-year product warranty — below premium standard** - The physical defect warranty of 15 years falls short of the 25-year product warranty offered by Silfab Elite (with online registration) and the emerging premium market standard. Since installations in Poland typically operate for 25–30 years, any physical module failure after year 15 shifts full replacement cost to the system owner. ## About this series The JS Solar Athena (JSHI-M0) series is designed for maximum energy yield from a limited surface area - particularly in situations where every module on the roof counts. It features a unique **half-cut cell architecture** that improves performance under partial shading and reduces internal losses, effectively maintaining a more stable daily energy production. The use of **HBC technology** (with concealed connections on the back) enhances aesthetics and light utilization, while also simplifying installation to fit modern building designs. The Athena modules also offer **PID resistance**, which is important for installations exposed to harsh conditions and long DC strings. The entire system is completed by a **sealed junction box with IP68 protection**, ensuring long-term reliability on the roof. This makes it a good choice for single-family homes, small businesses, and investments where aesthetics, predictable energy yields, and durability in the Polish climate are important. ## Notable figures - 21.3% module efficiency - 0.7pp better than the \*\*PERC 400-450W\*\* median of 20.6% - At 212.5 W/m² power density, this panel generates 6.3 W/m² more per unit area than \*\*PERC 400-450W\*\* median (206.2 W/m²) - At -0.29%/°C (vs median -0.35%/°C), loses ~2% less power in hot conditions - 20.8 kg weight - 1.2 kg lighter than \*\*PERC 400-450W\*\* median (22.0 kg), reducing installation effort - Ranked #8519 out of 14005 panels for efficiency in the database ## Questions ### What warranty comes with the JS Solar Athena JSHI-M0 panels? The Athena JSHI-M0 series carries a 15-year product warranty covering material and workmanship defects, along with a 25-year linear power output warranty. This means the manufacturer guarantees a defined minimum power yield for a full quarter century. That is a standard coverage level for this price class, though it is worth noting that JS Solar is not currently classified as a Tier 1 manufacturer. ### What is HBC technology in the Athena series and what does it actually do? HBC (Hidden Busbar Connection) moves the current-conducting metal contacts to the rear side of the cell, hiding them under the laminate. As a result, the front surface is cleaner aesthetically and absorbs slightly more light since nothing shades it from above. In practice this translates to a marginally higher energy yield for the same module footprint and a more seamless visual match with modern rooftops. ### Do the Athena JSHI-M0 panels handle partial shading from a chimney or dormers well? Yes. The half-cut cell architecture splits the module into 108 cells arranged in two electrically independent halves, so shading on one section does not shut down the entire string the way it would in a conventional full-cell layout. The PERC half-cut design visibly reduces mismatch losses in real-world rooftop conditions. For complex roof layouts, adding power optimizers or microinverters is still worth considering, but the half-cut design already provides a meaningful baseline improvement. ### How do the JS Solar Athena JSHI-M0 panels perform in winter and overcast conditions? PERC half-cut modules respond well to diffuse irradiance typical of Central European winters. The temperature coefficient of Pmax is approximately -0.29%/°C, meaning cold but sunny winter days can actually yield more power than hot summer afternoons because cooler cells lose less efficiency to heat. For Polish climate conditions this is a practical advantage that contributes to higher annual energy output. ### What is PID resistance and why does it matter for the Athena JSHI-M0? PID (Potential Induced Degradation) is a gradual power loss mechanism caused by high system voltages, moisture ingress, and leakage currents through the module frame. The Athena JSHI-M0 modules feature certified PID resistance, which is especially relevant in systems with long DC strings, high string voltages, and humid operating environments. Without this protection a module can lose several percent of its rated power per year, so built-in PID resistance directly supports long-term yield predictability. ### What are the dimensions of the JS Solar Athena JSHI-M0 430W panel and will it fit a standard roof mounting system? The panel measures approximately 1722 × 1134 × 30 mm and weighs around 20.8 kg. That is a compact footprint for a 430 Wp module, making rooftop transport and installation straightforward on standard aluminum rail-and-hook mounting systems. It is slightly larger than classic 60-cell modules but fits typical rafter or batten spacing without modification. Your installer should always verify roof load capacity and batten spacing before ordering. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Athena-Series-430W-0BB-64f337405e54.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Just Solar JST-EDMH-(445-465)W-TD (465W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-465w-class) | 465 W | +50 W, +2.5 pp, +5 yr warranty | | [Luxor Solar LX-465M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-465m-182r-96-gg) | 465 W | +50 W, +2.5 pp, +5 yr warranty | | [AIKO AIKO-A460-MAH54Mb](https://comparepv.com/panel/aiko-shenzhen-aiko-digital-energy-technology-co-ltd-aiko-a460-mah54mb-1) | 460 W | +45 W, +2.3 pp, +5 yr warranty | | [Luxor Solar LX-465M/182R188-108+ GG](https://comparepv.com/panel/luxor-solar-lx-465m-182r188-108-gg) | 465 W | +50 W, +2.3 pp, +5 yr warranty | | [Just Solar JST-EDMH-(445-465)W-TD (460W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-460w-class) | 460 W | +45 W, +2.3 pp, +5 yr warranty | | [Luxor Solar LX-460M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-460m-182r-96-gg) | 460 W | +45 W, +2.2 pp, +5 yr warranty | | [Philadelphia Solar PS-MNB108(HCBF)-460W](https://comparepv.com/panel/philadelphia-solar-ps-mnb108-hcbf-460w) | 460 W | +45 W, +2.2 pp, +5 yr warranty | | [JA Solar JAT54S40-460/LR](https://comparepv.com/panel/ja-solar-jat54s40-460-lr) | 460 W | +45 W, +2.2 pp, +5 yr warranty | | [JS Solar JS182MHC108-390](https://comparepv.com/panel/js-solar-js182mhc108-390) | 390 W | -25 W, hotter, -1.3 pp | | [JS Solar JS182MHC108-395](https://comparepv.com/panel/js-solar-js182mhc108-395) | 395 W | -20 W, hotter, -1.1 pp | | [JS Solar JS182MHC108-400](https://comparepv.com/panel/js-solar-js182mhc108-400) | 400 W | -15 W, hotter, -0.8 pp | | [JS Solar JS405M108](https://comparepv.com/panel/js-solar-js405m108) | 405 W | Hotter, lighter, +0.4 pp | | [JS Solar JS182MHC108-405](https://comparepv.com/panel/js-solar-js182mhc108-405) | 405 W | -10 W, hotter, -0.6 pp | | [JS Solar JS410M108HBC](https://comparepv.com/panel/js-solar-js410m108hbc) | 410 W | -0.3 pp | | [JS Solar JS182MHC108-410](https://comparepv.com/panel/js-solar-js182mhc108-410) | 410 W | Hotter, -0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +95 W, +3.7 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/js-solar-js415m108hbc 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.