--- title: "AIKO AIKO-G635-MCH72Dw 635W Solar Panel - Specs & Review | ComparePV" description: "AIKO AIKO-G635-MCH72Dw 635W solar panel. Specs: 23.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/aiko-aiko-g635-mch72dw" updated: 2026-09-11 --- # AIKO AIKO-G635-MCH72Dw Middle of its segment, heavy for its output 72 panels in the segment Back Contact 600-650 W ## Identity - **Manufacturer:** AIKO - **Model:** AIKO-G635-MCH72Dw - **Series:** Stellar 1N+ (AIKO-G-MCH72Dw) - **Rated power:** 635 W - **Cell technology:** Back Contact - **Bifacial:** yes ## How it compares Compared against segment Back Contact 600-650 W (72 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 635 W | 635 W | Typical | | | Module efficiency | 23.50% | 23.70% | Typical | 716 | | Power density | 235.1 | 236.9 | Typical | 741 | | Temperature coefficient | -0.260 | -0.260 | Typical | 511 | | Weight (kg) | 33.5 kg | 32.3 kg | Weak - bottom 13% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.50% | 23.70% | Typical | 716 | | Power density | 235.1 | 236.9 | Typical | 741 | | Temperature coefficient | -0.260 | -0.260 | Typical | 511 | | Weight per kWp | 52.8 | 50.4 | Weak - bottom 13% | 6,429 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **52.8 kg per kWp** - Bottom 13% of the Back Contact 600-650 W segment, against a median of 50.4. - **Best for:** Commercial, utility-scale and hot-climate. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 635 W - **Efficiency:** 23.50 % - **Voltage at Pmax (Vmp):** 45.00 V - **Current at Pmax (Imp):** 14.12 A - **Open-circuit voltage (Voc):** 54.70 V - **Short-circuit current (Isc):** 14.88 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 - **Bifacial:** yes ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 33.5 kg - **Area:** 2.70 m2 - **Power density:** 235.1 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:** 564 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 716 of 14005 | | Power density | 741 of 14005 | | Temperature coefficient | 511 of 14005 | | Weight | 6429 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Best T-coefficient in the class: -0.26%/°C** - The temperature coefficient of power, -0.26%/°C, is better than that of typical TOPCon modules from competitors (LONGi Hi-MO 9: -0.27%/°C, Canadian Solar TOPBiHiKu6: -0.29%/°C). On a hot day at 70°C, an ABC module loses approximately 11.8% of its power, while a TOPCon module loses approximately 12.6% – this difference translates into a significantly higher summer yield in utility installations. - **Degradation ≤0.35%/year – better than TOPCon** - AIKO guarantees ≤1% per year from year 1 and ≤0.35%/year from year 2, which results in ≥88.85% performance after 30 years. Comparable TOPCon modules (Sunpro SPDG, Canadian Solar TOPBiHiKu6) typically declare ≤0.40%/year, ending at ~84.8% – this difference of approximately 4% over the entire period significantly improves LCOE. - **Dual-glass + Fire Class A + mechanical resistance** - The glass-on-glass construction has a fire resistance rating of A (required on many industrial roofs and in utility buildings), and can withstand a snow load of 5400 Pa and wind loads of 2400 Pa. This eliminates PID (polyvinyl chloride degradation) and moisture as factors that can degrade the system, which is critical in coastal and agricultural installations. - **BNEF Tier 1 confirmed for Q1 2026** - AIKO is listed on the BNEF Tier 1 PV Module Manufacturers Q1 2026 list, which requires documented financing from independent commercial banks for ≥6 projects >10 MW within 24 months. This is a necessary condition for projects requiring project finance and due diligence from institutional investors. - **Efficiency of 24.4% – the highest among 72-cell segments** - The G660 variant achieves a module efficiency of 24.4%, matching the highest-performing competitors (LONGi Hi-MO 9: 24.4%, Canadian Solar TOPBiHiKu6: 24.4%), while also offering a lower Tcoeff and slower degradation rate. A power density of 660 Wp per 2382×1134 mm surface directly reduces BOS (Balance of System) costs and installation costs per MW of installed power. ## Cons - **Weight: ~33.5 kg (dual-glass)** - The dual-blade design increases the module weight to approximately 33.5 kg, compared to the ~28–30 kg for single-blade versions of competing TOPCon products. This may require a load-bearing capacity assessment and potential reinforcement of the existing roof structure during retrofits of commercial buildings – adding to the project cost. ## About this series AIKO Stellar 1N+ (AIKO-G-MCH72Dw) are dual-glass modules designed for maximum yield from the same surface area - with no compromises on longevity. Their key feature is the **N-type ABC (All Back Contact) technology**, which eliminates front busbars and utilizes light more effectively, translating to higher performance in real-world conditions, especially under weaker sunlight and in installations with limited mounting space. The glass-glass construction supports long-term operational stability, reduces the risk of degradation, and enhances resistance to environmental factors - crucial for solar farms, industrial rooftops, and projects near coastlines or agricultural areas. From an investor’s perspective, low degradation and long warranties are also important, as they facilitate energy production forecasting over time. The Stellar 1N+ modules also feature **better performance at elevated temperatures**, helping maintain yields during summer periods. This is a series for commercial and utility applications, where LCOE, reliability, and high power density matter. ## Notable figures - Efficiency of 23.5% matches the \*\*Back Contact 600-650W\*\* median - Power density of 235.1 W/m² matches the \*\*Back Contact 600-650W\*\* median - Temperature coefficient of -0.26%/°C matches the \*\*Back Contact 600-650W\*\* median - At 33.5 kg, this panel is 1.2 kg heavier than the \*\*Back Contact 600-650W\*\* median (32.3 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 the ABC technology used in AIKO Stellar 1N+ panels, and why is it important? ABC (All Back Contact) is a technology in which all electrical contacts of the solar cell are located on its back side. This results in a front surface that is completely free of metallic current paths, which increases light absorption and leads to higher efficiency – in the Stellar 1N+ series, this can reach up to 24.4%. In practice, this means more energy from the same roof or ground area, especially in situations with diffuse sunlight. ### What is the remaining power output of Aiko Stellar 1N+ panels after 30 years of operation? The manufacturer guarantees that the AIKO-G-MCH72Dw modules will maintain at least 88.85% of their initial power output after 30 years. The annual degradation rate, starting from the second year, is no more than 0.35%, which is significantly better than standard TOPCon or PERC panels. For a panel with a peak power output of 660 Wp, this translates to over 586 Wp after the full warranty period. ### Are Aiko Stellar 1N+ solar panels bifacial, and what additional power output can be achieved? Yes, the Stellar 1N+ (AIKO-G-MCH72Dw) series are bidirectional modules with a glass-glass construction. The rear glass allows reflected energy to reach the rear layer of the cells, which can increase the total yield by several to fifteen percent in ground-mounted systems with a bright surface or on roofs with highly reflective membranes. The bifacial effect is most noticeable in photovoltaic farms with appropriately positioned and illuminated modules. ### How do Aiko Stellar 1N+ solar panels perform in high summer temperatures? The temperature coefficient of power (Pmax) is -0.26%/°C, which is a better result than typical TOPCon modules (-0.29%/°C) or PERC modules (-0.35%/°C). This means that on hot days, Stellar 1N+ modules lose less power than the competition – the difference can amount to several percent of monthly summer production, which has a real impact on commercial and large-scale projects measured in LCOE. ### What guarantees does the manufacturer offer for the AIKO Stellar 1N+ series? AIKO provides a 15-year product warranty (for material and workmanship defects) and a 30-year linear power warranty. The dual-glass design enhances mechanical and moisture resistance, which is important for investors assessing long-term risks. The modules are certified for a snow load of 5400 Pa and wind load of 2400 Pa, which meets the requirements of farms and industrial rooftops in central European conditions. ### Are the AIKO Stellar 1N+ series suitable for commercial and solar farm installations? Yes, this series is primarily designed for commercial and utility-scale projects. With a power output of up to 660 Wp, high power density thanks to the efficiency of ABC cells, bifaciality, and a weather-resistant glass-glass enclosure, the Stellar 1N+ is competitive in terms of LCOE. The series is well-suited for large industrial rooftops, ground-mounted farms, and installations near coastlines or agricultural areas, where environmental resistance is crucial. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/stellar-1n-plus-customized-stellar-192-5-aiko-g-mch72dw-635-21e8723d88e1.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +15 W, lighter, +1.7 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +45 W, lighter, +1.7 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +40 W, lighter, +1.5 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +10 W, lighter, +1.5 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +35 W, lighter, +1.3 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +35 W, lighter, +1.3 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Lighter, +1.3 pp | | [AIKO AIKO-G625-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g625-mch72mw) | 625 W | -10 W, lighter, -0.4 pp | | [AIKO AIKO-G630-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g630-mch72mw) | 630 W | Lighter | | [AIKO AIKO-G640-MCH72Dw](https://comparepv.com/panel/aiko-aiko-g640-mch72dw) | 640 W | Very close match | | [AIKO AIKO-G645-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g645-mch72mw) | 645 W | +10 W, lighter, +0.4 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +65 W, heavier, +1.5 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +60 W, heavier, +1.4 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +35 W, lighter, +1.3 pp | --- Source: https://comparepv.com/panel/aiko-aiko-g635-mch72dw Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.