--- title: "AIKO AIKO-A660-MDE72Mw 660W Solar Panel - Specs & Review | ComparePV" description: "AIKO AIKO-A660-MDE72Mw 660W solar panel. Specs: 24.40% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/aiko-aiko-a660-mde72mw" updated: 2026-09-11 --- # AIKO AIKO-A660-MDE72Mw Light for its output, no clear weak spot 80 panels in the segment Back Contact 650-700 W ## Identity - **Manufacturer:** AIKO - **Model:** AIKO-A660-MDE72Mw - **Series:** Comet 3N72 Mono-glass Module (AIKO-A-MDE72Mw) - **Rated power:** 660 W - **Cell technology:** Back Contact ## How it compares Compared against segment Back Contact 650-700 W (80 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 660 W | 660 W | Typical | | | Module efficiency | 24.40% | 24.40% | Typical | 99 | | Power density | 244.3 | 244.3 | Typical | 88 | | Temperature coefficient | -0.260 | -0.260 | Typical | 511 | | Weight (kg) | 29.0 kg | 32.5 kg | Strong - top 24% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 24.40% | 24.40% | Typical | 99 | | Power density | 244.3 | 244.3 | Typical | 88 | | Temperature coefficient | -0.260 | -0.260 | Typical | 511 | | Weight per kWp | 43.9 | 49.7 | Strong - top 24% | 363 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **43.9 kg per kWp** - Top 24% of the Back Contact 650-700 W segment, against a median of 49.7. - **Best for:** Commercial, utility-scale and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 660 W - **Efficiency:** 24.40 % - **Voltage at Pmax (Vmp):** 45.30 V - **Current at Pmax (Imp):** 14.57 A - **Open-circuit voltage (Voc):** 54.60 V - **Short-circuit current (Isc):** 15.24 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.260 %/degC - **Temperature coefficient of Voc:** -0.220 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** Back Contact - **Cell count:** 144 ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 29.0 kg - **Area:** 2.70 m2 - **Power density:** 244.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 88.8 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.35 % - **Output after 30 years:** 586 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 99 of 14005 | | Power density | 88 of 14005 | | Temperature coefficient | 511 of 14005 | | Weight | 363 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Efficiency of 24.2–25.2% – leading the segment** - The ABC (All Back Contact) technology allows for a module efficiency of 24.2–25.2%, while comparable modules from SpolarPV, Solaria, and Vikram Solar (SPV680, PARADEA) have efficiencies of 21.89–21.92%. This represents a gain of 2.3–3.3%, which directly translates to higher power output from the same roof or ground area. - **Low Pmax temperature coefficient** - The temperature coefficient of Pmax is -0.26%/°C, compared to -0.30%/°C for typical TOPCon modules and -0.35%/°C for PERC modules. At a module temperature of 70°C (a realistic summer in Poland), the difference compared to PERC on a 680W module is approximately 9-10W less in actual power loss – which is significant for commercial and industrial installations that operate for many hours during the peak of summer. - **30-year linear warranty on power output, ≤0.35%/year degradation** - The manufacturer guarantees ≤1% degradation in the first year (LID) and ≤0.35%/year in subsequent years, with a retention of 90.6% after 25 years and 88.85% after 30 years. For comparison, a standard Tier-1 PERC/TOPCon offering typically achieves 84.8% after 25 years – the difference in cumulative energy yield over the lifespan is measurable in thousands of kWh per inverter. - **Lack of front-end metallization – increased reliability** - The back-contact architecture eliminates busbars and metallic fingers from the active surface of the cell, thereby removing the primary cause of micro-crack degradation and hot-spot formation due to partial shading. For large modules installed in industrial halls (where the risk of point contamination is high), this represents a real operational advantage. - **BNEF Tier 1 – bankability confirmed** - AIKO is listed on the BNEF Tier 1 PV Module Manufacturers (Q1 2026) list, which is a formal requirement for obtaining bank financing for PV farm and large C&I project installations. Tier 1 status signifies documented deliveries to at least 6 projects exceeding 10 MW, financed by independent commercial banks, over the past 24 months. ## Cons - **Lack of bifaciality (mono-glass)** - The Comet 3N72 series is a single-glass design, which eliminates reflection from the ground. On ground-mounted farms with a light-colored surface, bifacial modules typically generate an additional 5–15% of energy. AIKO offers bifacial ABC variants in the Stellar 3N+72 and Comet 3N+72 series – for ground-mounted installations, it is worth considering these series instead of the Comet 3N72. - **Standard product warranty: 15 years** - The standard product warranty is 15 years (with the option to extend it to 25 years under separate terms), while some Tier-1 manufacturers, such as Longi Hi-MO X10 and Canadian Solar HiKu7, offer 25 years as standard without any additional costs. For projects with long financing terms, a separate analysis of the terms of extension may be required. ## About this series The AIKO Comet 3N72 Mono-glass (AIKO-A-MDE72Mw) was developed with the goal of maximizing yield from every square meter, especially in installations where space is limited and power requirements are high. Its advantages begin with the architecture of **back-contact (XBC/ABC)** cells, where the active surface operates without front-side shading elements, translating into better light utilization and high aesthetics. In practice, the Comet 3N72 helps reduce losses on hot days thanks to its **favorable behavior at high temperatures**, and supports stable energy production under challenging operating conditions. The mono-glass construction is designed for **safety and durability during operation** - crucial for large modules installed on warehouse roofs and ground structures. This is an excellent choice for commercial and industrial installations as well as PV farms, where **low BOS costs** and a fast return on investment matter. Compared to many competitive modules, the series stands out through the combination of back-contact technology, refined reliability, and long manufacturer warranties. ## Notable figures - Efficiency of 24.4% matches the \*\*Back Contact 650-700W\*\* median - Power density of 244.3 W/m² matches the \*\*Back Contact 650-700W\*\* median - Temperature coefficient of -0.26%/°C matches the \*\*Back Contact 650-700W\*\* median - 29.0 kg weight - 3.5 kg lighter than \*\*Back Contact 650-700W\*\* median (32.5 kg), reducing installation effort - #99 for efficiency, #511 for temperature performance out of 14005 panels ## Questions ### What is the warranty on Aiko Comet 3N72 Mono-glass solar panels (AIKO-A-MDE72Mw)? The manufacturer offers a 15-year product warranty (covering physical and material defects) and a 30-year linear warranty on power output. The annual power degradation does not exceed 0.35%, which means that after 30 years, the panel retains the vast majority of its original performance. This is one of the longest warranty packages available on the market for premium-class PV modules. ### What is the back contact (ABC) technology used in Aiko Comet 3N72 panels, and does it actually perform better? In all ABC (All Back Contact) cells, all electrical connections are made on the back of the cell, and the front surface is fully active and free of shading electrodes. This allows the module to absorb more light and achieve higher efficiency compared to standard TOPCon or PERC cells. In the Comet 3N72 series, this translates to a power output of up to 680 Wp with a relatively small number of cells, as well as an attractive, dark-colored front without visible busbars. ### What is the weight of the AIKO Comet 3N72 panel, and what are its dimensions? Will it fit on a typical roof structure? The module measures 2382 x 1134 x 30 mm and weighs approximately 28.2 kg. These are typical dimensions for large commercial and industrial modules, so installation requires a suitable support structure and at least two installers. Due to its size and weight, the module may be difficult to transport and install on standard residential roofs, which is why the series is primarily targeted towards warehouses, commercial buildings, and agricultural fields. ### Do the Aiko Comet 3N72 solar panels perform well in the summer heat? Yes. The temperature coefficient of power is -0.26%/°C, which is a better result than typical TOPCon modules (-0.29%/°C) and significantly better than older PERC cells. In practice, this means that when the panel is heated to 70°C, the power loss is noticeably lower than that of competitors. The Comet 3N72 series is a good choice for installations exposed to high operating temperatures. ### Is AIKO a reliable manufacturer, and can I obtain a warranty in Poland? AIKO is listed on Bloomberg NEF's Tier 1 list, indicating its recognized financial and production credibility. The company specializes exclusively in back contact technology and is one of the global leaders in solar cell performance. The manufacturer's warranty is enforced by distributors and authorized trading partners, so it is advisable to confirm with the chosen supplier that they offer full warranty support in Poland before making a purchase. ### Which types of installations are best suited for the AIKO Comet 3N72 series, and would it be suitable for a small-scale residential installation? The Comet 3N72 series is designed for commercial, industrial, and solar farm installations, where low system (BOS) cost per watt and a quick return on investment are key. Its large size and weight (28 kg) make installation on a typical residential roof logistically challenging. For prosumers seeking ABC AIKO technology, the company offers smaller modules specifically designed for residential roofs, which better suit standard construction. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/comet-3n72-aiko-a-mde72mw-655w-680w-60fa0e630207.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | -10 W, lighter, +0.8 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +20 W, +0.8 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +15 W, +0.6 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | -15 W, lighter, +0.6 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +40 W, heavier, +0.6 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +35 W, heavier, +0.5 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +10 W, +0.4 pp | | [AIKO AIKO-G625-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g625-mch72mw) | 625 W | -35 W, heavier, -1.3 pp | | [AIKO AIKO-G630-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g630-mch72mw) | 630 W | -30 W, heavier, -1.1 pp | | [AIKO AIKO-G635-MCH72Dw](https://comparepv.com/panel/aiko-aiko-g635-mch72dw) | 635 W | -25 W, heavier, -0.9 pp | | [AIKO AIKO-G640-MCH72Dw](https://comparepv.com/panel/aiko-aiko-g640-mch72dw) | 640 W | -20 W, heavier, -0.7 pp | | [AIKO AIKO-G645-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g645-mch72mw) | 645 W | -15 W, heavier, -0.5 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +10 W, +0.4 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +10 W, heavier, +0.4 pp | --- Source: https://comparepv.com/panel/aiko-aiko-a660-mde72mw 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.