--- title: "JA Solar JAM54D30-390/MB/1500V 390W Solar Panel - Specs & Review | ComparePV" description: "JA Solar JAM54D30-390/MB/1500V 390W solar panel. Specs: 19.90% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ja-solar-jam54d30-390-mb-1500v" updated: 2026-09-11 --- # JA Solar JAM54D30-390/MB/1500V Warranty pick, heavy for its output 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** JA Solar - **Model:** JAM54D30-390/MB/1500V - **Series:** Deep Blue 3.0 - **Rated power:** 390 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 350-400 W (579 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 390 W | 380 W | Typical | | | Module efficiency | 19.90% | 19.90% | Typical | 12,331 | | Power density | 199.0 | 199.0 | Typical | 12,330 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 23.6 kg | 21.4 kg | Weak - bottom 25% | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 13% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.90% | 19.90% | Typical | 12,331 | | Power density | 199.0 | 199.0 | Typical | 12,330 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 60.5 | 55.8 | Weak - bottom 25% | 12,483 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 13% | 21 | ### Strengths - **30 year performance warranty** - Top 13% of the PERC 350-400 W segment, against a median of 25 yrs. ### Watch out for - **60.5 kg per kWp** - Bottom 25% of the PERC 350-400 W segment, against a median of 55.8. - **Best for:** Residential, commercial, utility-scale, shaded-installations and hot-climate. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 390 W - **Efficiency:** 19.90 % - **Voltage at Pmax (Vmp):** 30.64 V - **Current at Pmax (Imp):** 12.73 A - **Open-circuit voltage (Voc):** 36.85 V - **Short-circuit current (Isc):** 13.61 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.275 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1728 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 23.6 kg - **Area:** 1.96 m2 - **Power density:** 199.0 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 331 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12331 of 14005 | | Power density | 12330 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 12483 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Gallium-doped cells – LID elimination** - Gallium doping of the P-type silicon substrate eliminates the boron-oxygen complexes responsible for light-induced degradation (LID), keeping first-year LID below 0.5% — compared to 1.5–3% in standard PERC modules according to PVEL 2025 data. This results in a more stable power output curve over the full 25–30-year operating lifetime. - **Half-cut cells + Multi-Busbar on M10 wafers (182 mm)** - Halving the cells reduces the operating current by ~50%, cutting resistive (I²R) losses and lowering NOCT. The MBB layout (9–12 busbars) shortens the carrier path and increases the fill factor (FF). The combined effect delivers meaningfully better partial-shading tolerance and lower hot-spot risk compared to legacy full-cell, 5-busbar configurations. - **30-year linear power warranty (double-glass variants)** - Glass-glass module variants carry a 30-year linear power guarantee (≥87.4% of rated power after 30 years), while glass-backsheet variants are covered for 25 years. The product warranty stands at 12 years. Peer comparables in the dataset (GCL SIROT, JS Solar JS210MHC120) offer equivalent or shorter warranty terms. - **BNEF Tier-1 status – manufacturer bankability** - JA Solar has maintained continuous BNEF Tier-1 status; as of Q1 2026, the company holds annual manufacturing capacity exceeding 100 GWp, ranking among the top global suppliers alongside LONGi and Jinko. Tier-1 classification is a prerequisite for non-recourse project financing by banking institutions, directly enhancing the bankability of installations using these modules. - **18 power variants: 390–605 Wp** - The broad lineup of 18 variants (390–605 Wp) makes it possible to match the module to residential rooftop applications (lower-power formats) as well as utility-scale ground-mount projects, where higher per-panel wattage directly reduces BoS costs (cabling, racking, MPPT inverter sizing). It removes the need to mix series from multiple manufacturers within a single project. ## Cons - **Max efficiency 21.6% vs. 23.42% for GCL SIROT** - The peer comparable GCL SIROT Efficient NT10/72GDF reaches 23.42% module efficiency at the same peak power of 605 Wp — a gap of ~1.8 percentage points versus Deep Blue 3.0's 21.6% maximum. In practice, achieving the same target system capacity with Deep Blue 3.0 requires approximately 8–9% more mounting area, which can be a limiting factor on rooftops with restricted usable surface. - **P-type PERC – higher annual degradation vs. TOPCon** - Despite the gallium doping that eliminates LID, P-type PERC cells exhibit linear annual degradation of ~0.55%/year (per PVEL/IEC 61215 datasets), while N-type TOPCon modules from competing lines degrade at ~0.40%/year. Over a 25-year operating period, the cumulative difference amounts to approximately 3.5 percentage points of retained power — a measurable impact on lifetime energy yield and LCOE for long-term projects. - **Monofacial only – no bifacial gain** - The Deep Blue 3.0 series is strictly monofacial (is\_bifacial: false), whereas peer comparable Talesun TM3G66M BIPRO offers bifaciality at up to 605 Wp and 22.4% efficiency. In ground-mount installations with light-colored surfaces or flat-roof systems with white membranes, bifacial gain typically adds 5–15% to annual energy output — a yield upside that Deep Blue 3.0 cannot capture. ## About this series The Deep Blue 3.0 series is based on advanced M10 cells, allowing for an optimal balance between efficiency and the system costs of the entire installation. It utilizes **gallium-doped cell** technology, which effectively eliminates the problem of light-induced degradation (LID) and guarantees stable power over many years of operation. Thanks to the use of a **Half-Cut design** and Multi-Busbar technology, these panels perform significantly better in partial shading conditions and effectively reduce internal resistive losses. This is an ideal solution for investors looking for high energy density modules that will perform well on both residential roofs and in large industrial installations. Deep Blue 3.0 solves the problem of limited installation space, offering **maximum energy yield per square meter** while maintaining very high mechanical resistance to snow and wind loads. Compared to the competition, the series stands out with a refined temperature coefficient, which translates into higher electricity production on hot summer days. Choosing this series is a **safe investment in reliability** confirmed by rigorous certificates of resistance to salt spray and ammonia corrosion. These modules combine an innovative silicon structure with solid workmanship, ensuring a long-term return on capital in the Polish climate. ## Notable figures - Efficiency of 19.9% matches the \*\*PERC 0-400W\*\* median - At 199.0 W/m² power density, this panel generates 4.6 W/m² more per unit area than \*\*PERC 0-400W\*\* median (194.4 W/m²) - Temperature coefficient of -0.35%/°C matches the \*\*PERC 0-400W\*\* median - At 23.6 kg (3.1 kg above \*\*PERC 0-400W\*\* median of 20.5 kg), requires checking roof load capacity - Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface ## Questions ### What warranty does the JA Solar Deep Blue 3.0 series come with? The Deep Blue 3.0 series includes a 12-year product warranty covering material and manufacturing defects, along with a 30-year linear power output warranty that ensures stable, predictable energy production over three decades. The annual power degradation rate is exceptionally low. Both warranties are backed by JA Solar, a Tier 1 manufacturer and one of the most reliable PV suppliers globally. ### Are JA Solar Deep Blue 3.0 panels suitable for a sloped residential rooftop? Yes, the Deep Blue 3.0 series (e.g., model JAM78S30, up to 605 Wp) is well-suited for sloped residential rooftops. The robust aluminum frame withstands snow loads up to 5,400 Pa and wind pressure up to 2,400 Pa, meeting the demands of central European climates. The half-cut cell design minimizes power losses caused by partial shading from chimneys or dormers. ### What is the half-cut cell technology in the Deep Blue 3.0 series and what does it mean in practice? In the Deep Blue 3.0 series, each PERC cell is laser-cut in half, reducing internal resistance and heat generation within the module. This results in a lower Nominal Operating Cell Temperature (NOCT) and improved resistance to partial shading — shading one half-cell does not shut down the entire string. Over the course of a year, this translates to a measurably higher energy yield from the installation. ### How does the Deep Blue 3.0 series perform during hot summer days? The Deep Blue 3.0 power temperature coefficient is -0.35%/°C, meaning the panel loses only 0.35% of its rated power for each degree above 25°C. At a typical summer temperature of 40°C, the power loss is approximately 5.25% — a strong result for PERC technology. The series outperforms older polycrystalline modules, delivering higher output on warm, sunny days. ### What are gallium-doped cells and why do they matter in the Deep Blue 3.0? Gallium-doped cells replace traditional boron in the crystalline silicon structure, making the module resistant to Light-Induced Degradation (LID). In practice, Deep Blue 3.0 panels do not lose several percent of their rated power in the first weeks of operation, as older boron-based PERC modules sometimes do. This guarantees stable, predictable energy production from the very first day the system goes live. ### Is the JA Solar Deep Blue 3.0 series suitable for large commercial or utility-scale installations? Yes, the Deep Blue 3.0 series with peak power up to 605 Wp and high energy density is designed for both residential prosumer systems and large-scale commercial or industrial projects. The larger M10 (182 mm) cell format maximizes energy output per square meter, reducing Balance of System (BoS) costs per installed kilowatt. The modules also carry certifications for resistance to salt mist and ammonia corrosion. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/20210706053304417-f0c4f2480195.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Luxor Solar LX-440M/182-108+GG](https://comparepv.com/panel/luxor-solar-lx-440m-182-108-gg) | 440 W | +50 W, cooler, +3.2 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -50 W, lighter, +3.1 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | -30 W, lighter, +3.1 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | -10 W, lighter, +3.1 pp | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | +10 W, lighter, +3.1 pp | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | +10 W, lighter, +3.1 pp | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | -10 W, lighter, +3.1 pp | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +50 W, cooler, +3.0 pp | | [JA Solar JAM54S31-380/MR](https://comparepv.com/panel/ja-solar-jam54s31-380-mr) | 380 W | Lighter, -0.4 pp, -5 yr warranty | | [JA Solar JAM54S31-385/MR](https://comparepv.com/panel/ja-solar-jam54s31-385-mr) | 385 W | Lighter, -5 yr warranty | | [JA Solar JAM54S31-390/MR](https://comparepv.com/panel/ja-solar-jam54s31-390-mr) | 390 W | Lighter, -5 yr warranty | | [JA Solar JAM54D30-395/MB/1500V](https://comparepv.com/panel/ja-solar-jam54d30-395-mb-1500v) | 395 W | +0.3 pp | | [JA Solar JAM54S31-395/MR](https://comparepv.com/panel/ja-solar-jam54s31-395-mr) | 395 W | Lighter, +0.3 pp, -5 yr warranty | | [JA Solar JAM54S30-400/MR](https://comparepv.com/panel/ja-solar-jam54s30-400-mr) | 400 W | Lighter, +0.6 pp, -5 yr warranty | | [JA Solar JAM54D30-400/MB/1500V](https://comparepv.com/panel/ja-solar-jam54d30-400-mb-1500v) | 400 W | +10 W, +0.5 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +120 W, cooler, +5.1 pp | --- Source: https://comparepv.com/panel/ja-solar-jam54d30-390-mb-1500v Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.