--- title: "JA Solar MYP3060-300 300W Solar Panel - Specs & Review | ComparePV" description: "JA Solar MYP3060-300 300W solar panel. Specs: 18.01% efficiency, Polycrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ja-solar-myp3060-300" updated: 2026-09-11 --- # JA Solar MYP3060-300 Solid all-round for its segment 286 panels in the segment PERC 300-350 W ## Identity - **Manufacturer:** JA Solar - **Model:** MYP3060-300 - **Series:** P3 series - **Rated power:** 300 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 300-350 W (286 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 300 W | 325 W | Weak - bottom 3% | | | Module efficiency | 18.01% | 19.00% | Typical | 13,227 | | Power density | 180.1 | 190.0 | Typical | 13,210 | | Temperature coefficient | -0.370 | -0.360 | Typical | 13,081 | | Weight (kg) | 19.0 kg | 19.0 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 18.01% | 19.00% | Typical | 13,227 | | Power density | 180.1 | 190.0 | Typical | 13,210 | | Temperature coefficient | -0.370 | -0.360 | Typical | 13,081 | | Weight per kWp | 63.3 | 60.0 | Typical | 12,880 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | - **Best for:** Residential, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 300 W - **Efficiency:** 18.01 % - **Voltage at Pmax (Vmp):** 32.00 V - **Current at Pmax (Imp):** 9.38 A - **Open-circuit voltage (Voc):** 39.00 V - **Short-circuit current (Isc):** 9.91 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.370 %/degC - **Temperature coefficient of Voc:** -0.290 %/degC - **Temperature coefficient of Isc:** 0.048 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Polycrystalline - **Cell technology:** PERC - **Cell count:** 60 ### Physical - **Length:** 1666 mm - **Width:** 1000 mm - **Thickness:** 35 mm - **Weight:** 19.0 kg - **Area:** 1.67 m2 - **Power density:** 180.1 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13227 of 14005 | | Power density | 13210 of 14005 | | Temperature coefficient | 13081 of 14005 | | Weight | 12880 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **BNEF Tier 1 manufacturer – confirmed bankability** - JA Solar (founded 2005, production capacity >80 GW/year) has maintained continuous BNEF Tier 1 status, enabling non-recourse project financing and significantly reducing guarantor insolvency risk over a 25-year operational horizon. - **25 variants across 160–355 Wp range** - The broad power selection (160–355 Wp, 25 SKUs) allows a single-supplier approach covering both small residential rooftop systems with limited roof area and commercial-scale installations, simplifying documentation and service contracts. - **Multi-busbar SMBB construction** - The SMBB design (≥9 busbars) reduces cell internal resistance, improves micro-crack tolerance, and limits shading losses compared to legacy 3–5 BB configurations, realistically extending the module's mechanical service life. - **25-year linear power output warranty** - JA Solar guarantees ≥80% of rated power after 25 years, backed by a 12-year product warranty — the same standard as Tier-1 peers (Trina, LONGi), which facilitates project insurance and bankable energy yield projections. ## Cons - **PERC – a maturing-out technology** - PERC's global module shipment share collapsed from >80% in 2022 to \<25% in Q1 2026, while TOPCon reached ~65% market share. Purchasing PERC modules in 2026 risks supply chain gaps for capacity additions or replacements within 3–5 years, as active production winds down and spare-part premiums rise. - **Efficiency 15.69–18.01% vs. TOPCon standard** - Commercial TOPCon modules achieved 20–23% efficiency in 2026 (JA Solar DeepBlue 4.0 Pro: ~22.5%). For a 10 kWp system, the P3 series requires approximately 10–15% more roof area than a comparable n-type TOPCon module, which may be a binding constraint on smaller rooftops. - **Higher LID than n-type technologies** - PVEL 2025 testing shows 78% of PERC BOMs lose 1.5–2.5% power in year one due to Light-Induced Degradation (LID), versus \<0.5% for n-type TOPCon. Long-term annual degradation for PERC averages 0.45–0.55% vs. 0.30–0.40% for TOPCon, resulting in ~1–2% lower cumulative energy output after 25 years. - **No bifacial option available** - The P3 series is monofacial only (is\_bifacial: false), while comparable peer Bisol Spectrum (360 Wp, 18% efficiency) offers a bifacial variant. In ground-mount or flat-roof installations with a light-colored substrate, the absence of bifaciality translates to a 5–15% loss in potential annual energy yield. ## About this series The JA Solar P3 series consists of modules designed to maximize energy yield under real-world conditions - particularly when the installation operates at high temperatures, with reduced sunlight, or on a demanding roof. It is distinguished by **n-type cell technology with passivated contact (Bycium+)**, which helps to minimize power losses over time and stabilize the installation's performance. The use of **SMBB (multi-busbar structure)** improves current collection from the cell and increases resistance to microcracks, which translates to improved reliability in operation. An additional advantage is **high-density encapsulation** and a refined connection architecture, which allows the module to better withstand partial shading and reduces the risk of local overheating. The P3 series is particularly suitable for residential, commercial, and large-scale installations, where **lower system costs (BOS)** and reliable energy yield over the years are important. In practice, it distinguishes itself through its focus on energy yield and durability, rather than just catalog specifications. ## Notable figures - Efficiency of 18.0% is 1.4pp below the \*\*PERC 0-400W\*\* median (19.4%) - At 180.1 W/m², this panel generates 14.3 W/m² less per unit area than \*\*PERC 0-400W\*\* median (194.4 W/m²) - Temperature coefficient of -0.37%/°C matches the \*\*PERC 0-400W\*\* median - At 19.0 kg, this panel is 1.5 kg lighter than \*\*PERC 0-400W\*\* median (20.5 kg) - easier handling during installation - In the top 94% for efficiency among all PERC panels ## Questions ### What warranty comes with JA Solar P3 series panels? The JA Solar P3 series includes a 12-year product warranty covering material and workmanship defects, plus a 25-year linear power output warranty guaranteeing at least 80% of rated power after 25 years. The annual degradation rate is approximately 0.55%, which is consistent with Tier 1 module performance and makes the P3 series a reliable long-term investment for residential and commercial installations. ### Do JA Solar P3 panels perform well in cloudy or low-light conditions? Yes, the P3 series is specifically engineered for real-world conditions. The SMBB (Smart Multi-Busbar) cell architecture improves current collection under diffuse irradiance, and the optimized encapsulation reduces losses from partial shading. A low temperature coefficient further limits power drops on hot summer days. These characteristics are particularly relevant in Central European climates with limited peak-sun hours. ### What is SMBB technology in JA Solar P3 modules and does it actually matter? SMBB replaces the traditional 3–5 wide busbars with a grid of thin round wires, shortening the current path within the cell. The practical benefits are twofold: higher energy yield due to reduced resistive losses, and better mechanical reliability because the thinner wires distribute stress more evenly and make cells less prone to micro-cracking. For system owners, this means slower power degradation over the module's 25-year warranty period. ### Are JA Solar P3 modules rated up to 355 Wp suitable for a standard sloped residential roof? Yes, the P3 series is designed with residential rooftop installations in mind. The module dimensions and weight are compatible with standard racking systems used on pitched roofs with metal tile or ceramic tile coverings. The P3 is a monofacial panel, so it does not require special reflective underlays and works well on south-facing as well as east-west split roof orientations. ### How do JA Solar P3 panels differ from conventional PERC modules without SMBB? Standard PERC modules with 3–5 busbars have higher resistive losses inside the cell. The P3 series combines the PERC passivation layer with SMBB cell interconnection and high-density encapsulation, resulting in a higher Performance Ratio, reduced hot-spot risk, and lower Balance of System (BoS) costs for the same installed wattage. The practical outcome is a better energy yield per dollar invested over the system's lifetime. ### Is JA Solar a reliable manufacturer — should I choose the P3 series over European-made panels? JA Solar consistently appears on Tier 1 lists from major PV rating agencies including Bloomberg NEF and PVEL, confirming the financial strength needed to honor long-term warranties. The company holds IEC 61215 and IEC 61730 certifications and is among the top global module manufacturers by shipped volume. An authorized distribution and warranty service network operating in Poland means local support is available throughout the 25-year power warranty period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Product-specification-MYP3060-280-300-fef8d7bbbae0.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [SunLink LNSK-340M](https://comparepv.com/panel/sunlink-lnsk-340m) | 340 W | +40 W, heavier, +2.1 pp | | [Canadian Solar CS3K-330P](https://comparepv.com/panel/canadian-solar-cs3k-330p) | 330 W | +30 W, cooler, +1.9 pp | | [Canadian Solar CS3K-335MB-AG](https://comparepv.com/panel/canadian-solar-cs3k-335mb-ag) | 335 W | +35 W, +1.9 pp, +5 yr warranty | | [SunLink LNSK-335M](https://comparepv.com/panel/sunlink-lnsk-335m) | 335 W | +35 W, heavier, +1.8 pp | | [Canadian Solar CS3K-325P](https://comparepv.com/panel/canadian-solar-cs3k-325p) | 325 W | +25 W, cooler, +1.6 pp | | [SunLink LNSK-330M](https://comparepv.com/panel/sunlink-lnsk-330m) | 330 W | +30 W, heavier, +1.5 pp | | [Canadian Solar CS3K-320P](https://comparepv.com/panel/canadian-solar-cs3k-320p) | 320 W | +20 W, cooler, +1.3 pp | | [JA Solar MYP3060-280](https://comparepv.com/panel/ja-solar-myp3060-280) | 280 W | -20 W, -1.2 pp | | [JA Solar MYP3060-285](https://comparepv.com/panel/ja-solar-myp3060-285) | 285 W | -15 W, -0.9 pp | | [JA Solar MYP3060-290](https://comparepv.com/panel/ja-solar-myp3060-290) | 290 W | -10 W, -0.6 pp | | [JA Solar MYP3060-295](https://comparepv.com/panel/ja-solar-myp3060-295) | 295 W | -0.3 pp | | [JA Solar MYM3060-315](https://comparepv.com/panel/ja-solar-mym3060-315) | 315 W | +15 W, +0.9 pp | | [JA Solar MYM3060-320](https://comparepv.com/panel/ja-solar-mym3060-320) | 320 W | +20 W, +1.2 pp | | [JA Solar MYM3060-325](https://comparepv.com/panel/ja-solar-mym3060-325) | 325 W | +25 W, +1.5 pp | | [JA Solar MYM3060-330](https://comparepv.com/panel/ja-solar-mym3060-330) | 330 W | +30 W, +1.8 pp | | [JA Solar MYM3060-335](https://comparepv.com/panel/ja-solar-mym3060-335) | 335 W | +35 W, +2.1 pp | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +140 W, cooler, +4.9 pp | --- Source: https://comparepv.com/panel/ja-solar-myp3060-300 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.