--- title: "AmoSolar AS605G12-120 605W Solar Panel - Specs & Review | ComparePV" description: "AmoSolar AS605G12-120 605W solar panel. Specs: 21.38% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/amosolar-as605g12-120" updated: 2026-09-11 --- # AmoSolar AS605G12-120 Middle of its segment, short guarantee 217 panels in the segment PERC 600-650 W ## Identity - **Manufacturer:** AmoSolar - **Model:** AS605G12-120 - **Series:** AS580-615G12-120 - **Rated power:** 605 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 600-650 W (217 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 605 W | 605 W | Typical | | | Module efficiency | 21.38% | 21.38% | Typical | 8,423 | | Power density | 213.8 | 213.8 | Typical | 8,350 | | Temperature coefficient | -0.340 | -0.340 | Typical | 8,778 | | Weight (kg) | 30.9 kg | 34.0 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 16% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.38% | 21.38% | Typical | 8,423 | | Power density | 213.8 | 213.8 | Typical | 8,350 | | Temperature coefficient | -0.340 | -0.340 | Typical | 8,778 | | Weight per kWp | 51.1 | 55.7 | Typical | 4,413 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 16% | 9,798 | ### Watch out for - **25 year performance warranty** - Bottom 16% of the PERC 600-650 W segment, against a median of 30 yrs. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 605 W - **Efficiency:** 21.38 % - **Voltage at Pmax (Vmp):** 35.00 V - **Current at Pmax (Imp):** 17.29 A - **Open-circuit voltage (Voc):** 42.04 V - **Short-circuit current (Isc):** 18.23 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 ### Physical - **Length:** 2172 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 30.9 kg - **Area:** 2.83 m2 - **Power density:** 213.8 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:** 496 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8423 of 14005 | | Power density | 8350 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 4413 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Large G12 210 mm cells – higher individual power** - Format G12 (210 mm) with a 120-cell half-cut configuration allows for a maximum of 615 Wp per module. In large-scale installations, this means fewer modules are needed to achieve the same power output, which directly reduces BOS (balance of system) costs – estimated to be 5–8% lower compared to the M6/156 mm format. - **MBB half-cut – resistance to shading** - The multi-busbar technology, combined with half-cut cells, reduces power losses under partial shading and lowers internal resistance. The risk of microcrack formation is lower than in traditional 3BB/4BB modules, which translates to slower mechanical degradation in varying climatic conditions. - **Efficiency of 21.73% – performance on par with industry peers** - The maximum efficiency of 21.73% places the AS580-615G12-120 series on par with direct competitors: GCL GCL-M12/60H (21.7%) and Risen TITAN (21.7%). Despite having a lower bankability rating, the module does not lag behind these manufacturers in terms of power density per square meter. - **25-year linear power warranty** - The manufacturer offers a 25-year warranty on output power – a standard that aligns with those offered by GCL, Risen, and other leading G12 suppliers in the commercial segment. For a 25-year project, this minimizes regulatory and insurance risks associated with excessive degradation. ## Cons - **Lack of Tier 1 status / bankability** - AmoSolar is not included in the BloombergNEF (BNEF) Tier 1 Q1 2026 bankability list, while direct competitors such as GCL, Risen, and JA Solar have held this status for years. In projects financed by banks or infrastructure funds, a lack of bankability can make it difficult or impossible to obtain non-recourse financing, increasing the investor's capital costs. - **PERC (P-type) technology – being replaced by TOPCon** - PERC cells exhibit degradation of approximately 2% in the first year (compared to approximately 1% for N-type TOPCon), as well as susceptibility to LID (Light-Induced Degradation). A direct competitor, JA Solar JAM72D40 LB, offers the same power class (up to 615 Wp) on N-type cells with an efficiency of 23.2% – nearly 1.5% higher than the maximum of the AmoSolar series (21.73%). Over a 25-year lifespan, this translates to a realistically lower energy yield. - **12-year product warranty – below premium** - The warranty for workmanship and materials is 12 years. Tier-1 manufacturers (e.g., JA Solar, Trina Solar) typically offer 12-15 years in this power range. For projects with long operational lifespans and stringent service requirements (e.g., PPA contracts exceeding 15 years), a shorter product warranty period may be a point of negotiation or a requirement for purchasing additional insurance. ## About this series AmoSolar photovoltaic panels from the AS580-615G12-120 series define a new level of efficiency in utility-scale installations thanks to the use of **large-format G12 cells** measuring 210 mm. The use of advanced **multi-busbar (MBB)** technology drastically reduces internal resistance and the risk of micro-cracks, which directly translates into the stability of energy yields throughout the power plant's life cycle. The design based on 120 half-cut cells effectively minimizes power losses resulting from partial shading, making these modules a reliable choice for demanding industrial projects and solar farms. What distinguishes this series from market standards is an **exceptionally low temperature coefficient**, allowing for high productivity even in full sun and at high ambient temperatures. The AS580-615G12-120 series solves the problem of limited installation space by offering **maximum power density** from every square meter, which significantly reduces the costs of mounting structures and cabling (BOS). It is a solution dedicated to investors seeking uncompromising performance and a faster return on investment in the commercial sector. Robust resistance to extreme mechanical loads guarantees safety in variable weather conditions, placing these panels at the forefront in terms of durability and resistance to potential-induced degradation (PID). By choosing this technology, you gain a guarantee of stable system operation for decades. ## Notable figures - At 21.4% efficiency, this panel is on par with typical \*\*PERC 600-650W\*\* modules - Power density of 213.8 W/m² matches the \*\*PERC 600-650W\*\* median - Temperature coefficient of -0.34%/°C matches the \*\*PERC 600-650W\*\* median - 30.9 kg weight - 3.1 kg lighter than \*\*PERC 600-650W\*\* median (34.0 kg), reducing installation effort - Ranked #8423 out of 14005 panels for efficiency in the database ## Questions ### What is the maximum power output of the AmoSolar AS580-615G12-120 series, and what types of installations is it designed for? The AS580-615G12-120 series delivers a peak power output of up to 615 Wp, making it one of the most powerful options in the industrial-grade module segment. The large-format G12 cells measuring 210 mm, combined with a 120 half-cut cell configuration, make these modules ideally suited for utility-scale solar farms and commercial installations where maximizing power density per square meter of surface area is critical. ### What warranty coverage is provided for the AmoSolar AS580-615G12-120 series panels? The manufacturer offers a 12-year product warranty covering material and workmanship defects, along with a 25-year linear power output warranty. This means the panel is warranted to maintain efficiency above the threshold specified in the warranty documentation for a full quarter century. It is advisable to verify the warranty terms with the distributor prior to purchase, as AmoSolar is not classified as a Tier 1 manufacturer. ### Does the PERC half-cut cell technology in the AS580-615G12-120 series genuinely improve performance under partial shading conditions? Yes. Splitting each cell in half reduces the current flowing through the circuit, which in turn minimizes resistive and thermal losses. In practice, when the module is partially shaded — for example by a chimney, mast, or adjacent structure — it loses significantly less power than a conventional full-cell panel. This is particularly important in large-scale installations where inter-row shading is difficult to avoid entirely. ### What does the G12 designation in the AmoSolar AS580-615G12-120 series name indicate, and why does it matter? G12 refers to the silicon wafer format with a 210 mm side length, one of the largest cell sizes currently available on the market. A larger cell generates more current for the same cell count, which directly translates into a higher power output for the entire module. For the project developer, this means fewer panels are required to reach the target system capacity, resulting in lower costs for mounting structures, cabling, and installation labor. ### Are the AmoSolar AS580-615G12-120 panels bifacial, and do they generate energy from ground-reflected irradiance? No, the AS580-615G12-120 series consists of monofacial modules. Electrical energy is generated exclusively by the front surface of the panel. If additional energy yield from irradiance reflected off the ground or rooftop surface is a priority for your project, you should consider bifacial modules from other manufacturers' dual-glass product lines or from other bifacial series within the AmoSolar portfolio. ### Do the AmoSolar AS580-615G12-120 modules perform well during summer months at elevated operating temperatures? The series features a low temperature coefficient, which means that power loss as cell temperature rises is smaller than in standard PERC modules. In practice, this results in higher energy yields on hot, sunny days — conditions that are typically the worst-case scenario for conventional panels. This is a significant advantage in industrial installations that operate under full irradiance throughout the day. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/210-mono-half-cell-120cells-580-615w-2172-1303-35-ffe1b611891c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, +3.8 pp, +5 yr warranty | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, +3.6 pp, +5 yr warranty | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +3.4 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, +3.4 pp, +5 yr warranty | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.2 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | Cooler, +3.2 pp, +5 yr warranty | | [AmoSolar AS580G12-120](https://comparepv.com/panel/amosolar-as580g12-120) | 580 W | -25 W, -0.9 pp | | [AmoSolar AS585G12-120](https://comparepv.com/panel/amosolar-as585g12-120) | 585 W | -20 W, -0.7 pp | | [AmoSolar AS590G12-120](https://comparepv.com/panel/amosolar-as590g12-120) | 590 W | -15 W, -0.5 pp | | [AmoSolar AS595G12-120](https://comparepv.com/panel/amosolar-as595g12-120) | 595 W | -10 W, -0.4 pp | | [AmoSolar AS600G12-120](https://comparepv.com/panel/amosolar-as600g12-120) | 600 W | Very close match | | [AmoSolar AS610G12-120](https://comparepv.com/panel/amosolar-as610g12-120) | 610 W | Very close match | | [AmoSolar AS615G12-120](https://comparepv.com/panel/amosolar-as615g12-120) | 615 W | +10 W, +0.4 pp | | [Gamko New Energy GKA210N120](https://comparepv.com/panel/gamko-new-energy-gka210n120) | 680 W | +75 W, +2.7 pp, +5 yr warranty | | [Gamko New Energy GKA210N120-675](https://comparepv.com/panel/gamko-new-energy-gka210n120-675) | 675 W | +70 W, +2.5 pp, +5 yr warranty | | [Q-SUN Solar QN-670HJT-01](https://comparepv.com/panel/q-sun-solar-qn-670hjt-01) | 670 W | +65 W, cooler, +2.3 pp | --- Source: https://comparepv.com/panel/amosolar-as605g12-120 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.