--- title: "JA Solar JAM72D30-525/MB/1500V 525W Solar Panel - Specs & Review | ComparePV" description: "JA Solar JAM72D30-525/MB/1500V 525W solar panel. Specs: 20.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ja-solar-jam72d30-525-mb-1500v" updated: 2026-09-11 --- # JA Solar JAM72D30-525/MB/1500V Middle of its segment, modest efficiency 706 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** JA Solar - **Model:** JAM72D30-525/MB/1500V - **Series:** DeepBlue 3.0 MB Series - **Rated power:** 525 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 500-550 W (706 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 525 W | 535 W | Weak - bottom 21% | | | Module efficiency | 20.30% | 20.90% | Weak - bottom 5% | 11,769 | | Power density | 203.2 | 209.0 | Weak - bottom 6% | 11,731 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 31.8 kg | 28.4 kg | Weak - bottom 7% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.30% | 20.90% | Weak - bottom 5% | 11,769 | | Power density | 203.2 | 209.0 | Weak - bottom 6% | 11,731 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 60.6 | 53.0 | Weak - bottom 7% | 12,495 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **20.30% module efficiency** - Bottom 5% of the PERC 500-550 W segment, against a median of 20.90%. Ranked 11,769th in the whole database. - **203.2 watts per square metre** - Bottom 6% of the PERC 500-550 W segment, against a median of 209.0. Ranked 11,731st in the whole database. - **60.6 kg per kWp** - Bottom 7% of the PERC 500-550 W segment, against a median of 53.0. Ranked 12,495th in the whole database. - **Best for:** Commercial, utility-scale, shaded-installations and cold-climate. - **Not ideal for:** Tight roof space, roofs where every square metre has to count and weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 525 W - **Efficiency:** 20.30 % - **Voltage at Pmax (Vmp):** 41.15 V - **Current at Pmax (Imp):** 12.76 A - **Open-circuit voltage (Voc):** 49.15 V - **Short-circuit current (Isc):** 13.65 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:** 144 - **Bifacial:** yes - **Bifacial gain:** 10.00 ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 31.8 kg - **Area:** 2.58 m2 - **Power density:** 203.2 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:** 446 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11769 of 14005 | | Power density | 11731 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 12495 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Gallium-doped bifacial PERC cells (Ga-PERC)** - Gallium doping eliminates light-induced degradation (LID), reducing annual power loss compared to standard boron-doped PERC. With a bifaciality factor of ~70%, the rear surface contributes an additional 5–10% energy yield at typical albedo values of 20–30% (light-colored rooftop, sand, or snow) — particularly beneficial in the Polish climate with seasonal snow cover. - **Half-cut cells + Multi-Busbar (9 MBB)** - Halving each cell reduces the operating current by 50%, cutting resistive (I²R) losses by up to 30% versus full-cell modules. The 9-busbar layout shortens current paths, reduces stress-induced micro-cracking, and improves real-world performance under partial shading — a meaningful advantage for urban rooftop and complex-geometry installations. - **30-year linear power warranty (≥87.4%)** - JA Solar guarantees at least 87.4% of rated output after 30 years, matching direct peer comparables in the segment: Goldi Solar GS10-B144-TF, IBC Solar 182M Half Cell, and S-Energy SL65-72BGJ. The linear warranty structure eliminates hidden step-degradation in early years — a critical input for commercial LCOE modeling and utility-scale project finance. - **21.3% peak efficiency on par with peers** - Module efficiency of 20.3–21.3% is fully competitive with direct segment peers: Goldi Solar GS10-B144-TF (21.3%), IBC Solar 182M (21.28%), and S-Energy SL65-72BGJ (21.3%), using a 72-cell M10 format. With a max power of 550 Wp, the series delivers high power density without the cost premium of N-type technology. - **JA Solar – BNEF Tier-1, in operation since 2005** - JA Solar is a recurrent BNEF Tier-1 bankable manufacturer (Q1 2026 list), satisfying non-recourse project finance requirements (six 10 MW+ projects financed by six independent banks). With 20+ years of manufacturing history and global shipments exceeding 80 GW/year, counterparty risk over the 30-year warranty horizon is minimal — a key argument for bank-financed commercial and utility-scale PV installations. ## Cons - **P-type PERC vs. newer N-type TOPCon** - The DeepBlue 3.0 MB series (released 2020) relies on P-type PERC, while JA Solar's own next-generation DeepBlue 4.0 Pro (Bycium+/TOPCon) achieves up to 22.4% efficiency versus a maximum of 21.3% for this series. N-type cells also exhibit lower LeTID (light and elevated temperature induced degradation) and superior temperature characteristics, which can translate into measurably higher annual energy yield over a long operational horizon for the same rooftop footprint. ## About this series The JA Solar DeepBlue 3.0 MB Series redefines efficiency standards through the use of M10 silicon wafers and advanced **gallium-doped p-type PERC technology**. This innovative approach effectively eliminates the problem of light-induced degradation (LID), which translates into exceptional long-term stability of energy yields. The design based on **Half-Cut cells** and the **Multi-Busbar (MBB)** solution allows for a significant reduction in internal resistance and minimization of power losses during partial shading of the modules. These panels stand out from the competition with an excellent quality-to-price ratio, offering the **lowest levelized cost of energy (LCOE)**, making them a priority choice for large photovoltaic farms and demanding commercial installations. The applied mechanical innovations guarantee high resistance to extreme snow and wind loads, ensuring full investment security over many decades of operation. Thanks to the precise optimization of dimensions and electrical parameters, the DeepBlue 3.0 series perfectly addresses issues related to limited installation space, maximizing electricity production from every square meter of the roof. It is a comprehensive solution for professional investors seeking **maximum power density** while maintaining the highest technical reliability in the variable conditions of the Polish climate. Choosing this series guarantees modern technology that effectively shortens the payback period for investments in green energy. ## Notable figures - Module efficiency of 20.3% is 0.6pp below average for \*\*PERC 500-550W\*\* panels (median: 20.9%) - At 203.2 W/m², this panel generates 5.8 W/m² less per unit area than \*\*PERC 500-550W\*\* median (209.0 W/m²) - Temperature coefficient of -0.35%/°C matches the \*\*PERC 500-550W\*\* median - At 31.8 kg, this panel is 3.4 kg heavier than the \*\*PERC 500-550W\*\* median (28.4 kg) - more demanding for installation crews - Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof ## Questions ### What is bifacial technology in the JA Solar DeepBlue 3.0 MB Series, and does it actually increase energy yield? Yes. The MB designation stands for Multi-Busbar Bifacial — the module has an active rear surface that captures albedo light reflected from the ground. In practice, rear-side energy gains can reach up to 30% compared to a conventional monofacial panel when installed over a bright surface (gravel, concrete, snow). On a typical pitched roof, the gain is typically 5-15%. The DeepBlue 3.0 MB Series delivers a front-side peak power of 550 Wp. ### What warranty does the JA Solar DeepBlue 3.0 MB Series carry? JA Solar provides a 12-year product warranty covering material and manufacturing defects, plus a 30-year linear power output warranty. The gallium-doped p-type PERC cell technology eliminates Light-Induced Degradation (LID), resulting in a slower long-term power decline compared to standard boron-doped PERC cells. This is one of the longest performance warranties currently available in the PERC segment. ### Can JA Solar DeepBlue 3.0 MB Series panels handle heavy snow and strong winds in Central European climates? Yes. DeepBlue 3.0 MB modules are certified for snow load up to 5,400 Pa and wind load up to 2,400 Pa — sufficient for Polish climatic zones and local building code requirements. The dual-tempered glass construction (2 mm front + 2 mm rear) provides high mechanical strength, and the IP68-rated junction box protects electrical components from moisture ingress. ### How do Half-Cut cells and Multi-Busbar (MBB) technology in the DeepBlue 3.0 Series perform under partial shading? Half-cut cells split each cell in half, so shading one section does not fully block the entire string. The 11-busbar MBB design shortens the current path and lowers internal resistance. As a result, DeepBlue 3.0 MB installations handle chimneys, dormers, and inter-row shading on utility farms significantly better than conventional 6-busbar modules — partial shading power losses are noticeably reduced. ### What type of installation is the JA Solar DeepBlue 3.0 MB Series best suited for — residential rooftop or utility-scale? The 72-cell format (approx. 2278 × 1134 mm, ~28 kg) is optimized primarily for commercial and utility-scale PV farms where minimizing LCOE is the priority. For residential pitched roofs, smaller variants from the DeepBlue 3.0 family are a better fit. On industrial rooftops, warehouses, and ground-mounted farms, the 550 Wp MB module excels — maximizing power density per available square meter. ### Do gallium-doped PERC cells in the DeepBlue 3.0 MB really prevent degradation after the system goes live? Yes. Standard boron-doped PERC cells typically suffer LID during the first weeks of operation, potentially losing 1-3% of rated power. JA Solar uses gallium doping in the DeepBlue 3.0 Series to eliminate this degradation mechanism. As a result, the module maintains its nameplate power from day one and degrades more slowly throughout the 30-year performance warranty period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/62f35d43f278c2f-3c8c14c2eef6.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +4.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +4.5 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +4.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +4.4 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +4.3 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +4.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +4.2 pp | | [JA Solar JAM72S30-530/MR](https://comparepv.com/panel/ja-solar-jam72s30-530-mr) | 530 W | Lighter, -5 yr warranty | | [JA Solar JAM72S30-535/MR](https://comparepv.com/panel/ja-solar-jam72s30-535-mr) | 535 W | Lighter, +0.4 pp, -5 yr warranty | | [JA Solar JAM72S30-540/MR](https://comparepv.com/panel/ja-solar-jam72s30-540-mr) | 540 W | Lighter, +0.6 pp, -5 yr warranty | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +125 W, cooler, +4.9 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +120 W, cooler, +4.7 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +115 W, cooler, +4.5 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +110 W, cooler, +4.3 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +105 W, cooler, +4.1 pp | --- Source: https://comparepv.com/panel/ja-solar-jam72d30-525-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.