--- title: "JA Solar JAM72S30-530/MR 530W Solar Panel - Specs & Review | ComparePV" description: "JA Solar JAM72S30-530/MR 530W solar panel. Specs: 20.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ja-solar-jam72s30-530-mr" updated: 2026-09-11 --- # JA Solar JAM72S30-530/MR Middle of its segment, modest efficiency 706 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** JA Solar - **Model:** JAM72S30-530/MR - **Series:** JAM72S30 530-555/MR - **Rated power:** 530 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 500-550 W (706 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 530 W | 535 W | Typical | | | Module efficiency | 20.50% | 20.90% | Weak - bottom 11% | 11,308 | | Power density | 205.2 | 209.0 | Weak - bottom 15% | 11,255 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 27.3 kg | 28.4 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 23% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.50% | 20.90% | Weak - bottom 11% | 11,308 | | Power density | 205.2 | 209.0 | Weak - bottom 15% | 11,255 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 51.5 | 53.0 | Typical | 4,879 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 23% | 9,798 | ### Watch out for - **20.50% module efficiency** - Bottom 11% of the PERC 500-550 W segment, against a median of 20.90%. - **205.2 watts per square metre** - Bottom 15% of the PERC 500-550 W segment, against a median of 209.0. - **25 year performance warranty** - Bottom 23% of the PERC 500-550 W segment, against a median of 30 yrs. - **Best for:** Utility-scale, commercial and shaded-installations. - **Not ideal for:** Tight roof space, roofs where every square metre has to count and owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 530 W - **Efficiency:** 20.50 % - **Voltage at Pmax (Vmp):** 41.31 V - **Current at Pmax (Imp):** 12.83 A - **Open-circuit voltage (Voc):** 49.30 V - **Short-circuit current (Isc):** 13.72 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 ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 27.3 kg - **Area:** 2.58 m2 - **Power density:** 205.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 435 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11308 of 14005 | | Power density | 11255 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 4879 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Tier-1 bankable manufacturer since 2005** - JA Solar maintains a continuous BNEF Tier-1 bankable status, a formal requirement for non-recourse project financing by commercial banks. Founded in 2005 and consistently ranked among the top three global module suppliers, the company carries minimal counterparty risk for long-term utility-scale projects. - **Half-cut cells + 11-busbar Multi-Busbar on M10 wafers** - The 144 half-cut cell layout (6×24) in the 182 mm M10 format splits the module into two independent parallel strings, limiting mismatch losses under partial shading. The 11BB architecture shortens current pathways, lowers series resistance, and significantly reduces micro-crack propagation risk over the module's service life. - **Up to 21.5% efficiency — competitive within PERC segment** - The 555 Wp variant reaches 21.5% efficiency, outperforming Boviet Solar VEGA Series (21.3%) and matching ET Solar Elite PLUS (21.4%). At identical module dimensions (2,279 × 1,134 mm), this translates to higher energy yield per square meter than two of the three listed peer comparables. - **25-year linear power warranty at ≥84.8%** - JA Solar guarantees no more than 2% degradation in year one and no more than 0.55%/year for the following 24 years, ensuring at least 84.8% of nameplate power after 25 years. The 0.55%/year degradation rate is consistent with top-tier PERC and supports predictable DCF financial modeling for investors. ## Cons - **P-type PERC technology in market decline** - By 2025, N-type TOPCon surpassed 65% of global cell production, relegating PERC to roughly 20% market share. TOPCon modules deliver approximately 3.7% higher annual energy yield and a superior temperature coefficient (−0.31%/°C vs. −0.350%/°C for this series), a meaningful LCOE difference over a 25-year asset life. - **12-year product warranty — below segment leaders** - A 12-year materials and workmanship warranty is the minimum for Tier-1 manufacturers. Several competitors offer 15 years (e.g., Trina Solar Vertex S+) and some HJT producers extend coverage to 25 years. For bank-financed utility-scale projects, this gap may require additional insurance or credit enhancement during due diligence. ## About this series The JAM72S30 530-555/MR series is based on half-cut cells, which allows for the effective reduction of resistance losses and a significant improvement in efficiency under diffused light conditions. The **Multi-Busbar architecture** used in the modules guarantees a shorter electron flow path, which minimizes the risk of micro-cracks and increases overall system reliability. Thanks to the use of **PERC cell technology** in the large M10 format, these panels achieve high efficiency while maintaining optimal logistics and installation costs. The **Half-Cut** design effectively solves the problem of power drops during partial shading by dividing the panel into two independent sections working in parallel. The modules are also characterized by a **low temperature coefficient**, which ensures higher energy yields during summer peaks of sunlight compared to standard solutions. This series is intended primarily for **large-scale farm projects** and large industrial installations where the priority is the lowest cost of energy production. It stands out on the market with an excellent price-to-technical parameters ratio and a reinforced frame structure that effectively protects the cells against extreme wind pressure and snow load, ensuring long-term investment security. This is equipment designed to maximize the profitability of large PV projects, providing predictable yields in variable weather conditions. ## Notable figures - At 20.5% efficiency, this panel is on par with typical \*\*PERC 500-550W\*\* modules - At 205.2 W/m², this panel generates 3.8 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 - Weight of 27.3 kg (1.1 kg below \*\*PERC 500-550W\*\* median of 28.4 kg) allows easier transport and roof mounting - #11308 for efficiency, #10419 for temperature performance out of 14005 panels ## Questions ### What warranty does the JA Solar JAM72S30 530-555/MR series come with? The JAM72S30 530-555/MR series carries a 12-year product warranty covering defects in materials and workmanship. The linear power warranty runs for 25 years, guaranteeing at least 84.8% of rated output at end of term. As a Tier 1 manufacturer, JA Solar has the financial stability to back these long-term commitments, which is a critical consideration for utility-scale project financing and bankability. ### Is the JAM72S30 555W module suitable for utility-scale solar farms? Yes, the JAM72S30 530-555/MR series is purpose-built for utility-scale farms and large industrial installations. With up to 555 Wp per module and efficiency reaching 21.48%, it delivers a low LCOE. The reinforced aluminum frame handles extreme wind and snow loads, making it well suited for ground-mounted racking systems where structural reliability directly impacts long-term project profitability. ### What does the Half-Cut PERC technology in the JAM72S30 series mean for real-world energy yield? Half-Cut PERC splits each PERC cell in two, reducing resistive losses and improving output under partial shading conditions. The module operates as two independent parallel half-strings, so shading on one half does not disable the other. In practice this translates to a measurable increase in energy yield compared to full-cell modules, particularly in installations with non-uniform irradiance or minor horizon obstructions. ### How does the JAM72S30 530-555/MR perform during high summer temperatures? The series features a power temperature coefficient of -0.35%/°C, meaning output drops by only 0.35% for every degree Celsius above the 25°C STC reference. This is better than many conventional modules, resulting in higher energy yield during peak summer heat. For utility plants in warm climates, the low temperature coefficient directly reduces generation losses during the hottest hours of the day. ### What are the dimensions and weight of the JA Solar JAM72S30-555/MR panel, and what does that mean for installation? The JAM72S30-555/MR measures 2278 × 1134 × 30 mm and weighs 27.3 kg. The large M10 cell format maximizes active area and power output per module, but the size and weight require at least two installers and appropriate lifting equipment. Project planners should verify that racking systems are rated for this module's dimensions and confirm logistical access before scheduling installation crews. ### How does the 11-busbar Multi-Busbar design in the JAM72S30 compare to older JA Solar modules with fewer busbars? The 11BB architecture shortens the current path across each PERC cell compared to older 5BB or 9BB designs, directly lowering resistive losses and raising module efficiency. More busbars also distribute mechanical stress more evenly across the cell surface, reducing the risk of micro-cracks during handling and long-term thermal cycling. For investors, this means a more predictable degradation curve and better sustained energy output over the module's lifetime. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/JAM72S30-MR-757f7e45ece7.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, +4.5 pp, +5 yr warranty | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +4.3 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, +4.3 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +4.2 pp, +5 yr warranty | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, +4.1 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +4.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +4.0 pp, +5 yr warranty | | [JA Solar JAM72D30-525/MB/1500V](https://comparepv.com/panel/ja-solar-jam72d30-525-mb-1500v) | 525 W | Heavier, +5 yr warranty | | [JA Solar JAM72S30-535/MR](https://comparepv.com/panel/ja-solar-jam72s30-535-mr) | 535 W | Very close match | | [JA Solar JAM72S30-540/MR](https://comparepv.com/panel/ja-solar-jam72s30-540-mr) | 540 W | +10 W, +0.4 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +120 W, cooler, +4.7 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +115 W, cooler, +4.5 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +110 W, cooler, +4.3 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +105 W, cooler, +4.1 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +100 W, cooler, +3.9 pp | --- Source: https://comparepv.com/panel/ja-solar-jam72s30-530-mr Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.