--- title: "Amerisolar AS-8M132-HC-660W 660W Solar Panel - Specs & Review | ComparePV" description: "Amerisolar AS-8M132-HC-660W 660W solar panel. Specs: 21.25% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/artsolar-as-8m132-hc-660w" updated: 2026-09-11 --- # Amerisolar AS-8M132-HC-660W Solid all-round for its segment 320 panels in the segment PERC 650-700 W ## Identity - **Manufacturer:** Amerisolar - **Model:** AS-8M132-HC-660W - **Series:** AS-8M132-HC - **Rated power:** 660 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 650-700 W (320 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 660 W | 660 W | Typical | | | Module efficiency | 21.25% | 21.25% | Typical | 8,904 | | Power density | 212.5 | 212.5 | Typical | 8,959 | | Temperature coefficient | -0.340 | -0.340 | Typical | 8,778 | | Weight (kg) | 34.0 kg | 34.5 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.25% | 21.25% | Typical | 8,904 | | Power density | 212.5 | 212.5 | Typical | 8,959 | | Temperature coefficient | -0.340 | -0.340 | Typical | 8,778 | | Weight per kWp | 51.5 | 52.3 | Typical | 4,883 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Commercial, utility-scale and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 660 W - **Efficiency:** 21.25 % - **Voltage at Pmax (Vmp):** 38.10 V - **Current at Pmax (Imp):** 17.33 A - **Open-circuit voltage (Voc):** 45.90 V - **Short-circuit current (Isc):** 18.46 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.260 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 132 ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 34.0 kg - **Area:** 3.11 m2 - **Power density:** 212.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 20 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 80.0 % - **First-year degradation:** 2.50 % - **Annual degradation:** 0.60 % - **Output after 30 years:** 529 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8904 of 14005 | | Power density | 8959 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 4883 of 14005 | | Warranty | 21 of 14005 | ## Pros - **30-year power output guarantee** - The manufacturer guarantees a linear decrease in output to 80% of its nominal capacity over a 30-year period, backed by a 20-year product warranty. This represents a longer period of protection than offered by many comparable products in this power range, and strengthens the return on investment (ROI) calculation for commercial and PV farm investments. - **Half-Cut 132 cells + Multi Busbar** - Configuration 132 Half-Cut cells divides the module into two independent halves, minimizing losses due to partial shading. The MBB (Multi Busbar) technology reduces the current flow path and lowers thermal stress, which, according to industry research, results in approximately a 2-3% higher annual yield compared to standard full-cell modules without MBB. - **High individual power output up to 665 W** - The 640–665 W power output, with a 2384 × 1303 mm format, allows for a reduction in the number of modules and cable lengths in an installation, which lowers BOS (Balance of System) costs. The series is particularly attractive for industrial and PV farm applications, where maximizing power density per unit area is a priority. - **Low temperature operating range for Pmax** - The temperature coefficient of Pmax is -0.34%/°C, which is a favorable value in the PERC segment and indicates lower power losses on hot days (e.g., with a module temperature of 70°C, the power loss is approximately 16.7% compared to the typical PERC, which would be approximately 18.1%). - **IEC 61215 and IEC 61730 (TÜV) certifications** - The modules have TÜV certificates for IEC 61215 (performance) and IEC 61730 (safety), which are standard requirements for project financing in Europe and meet the requirements of most national renewable energy support systems. ## Cons - **The outdated PERC technology in the face of the market** - The series utilizes PERC (peak efficiency of 21.41%), while comparable products from Sunpro SPDG-BC132R12 and Talesun CIPRO-TM9C72M achieve 24.62% and 24.6% efficiency, respectively, thanks to BC/TOPCon technologies. The difference of approximately 3.2% in efficiency translates to a real reduction of around 15% in power output for the same surface area. In 2024, TOPCon surpassed 66% of global production capacity, while the share of PERC in the market is declining below 35%. - **History of Quality Control Issues** - The Australian Clean Energy Council has twice excluded Amerisolar from its list of approved manufacturers due to discrepancies between the actual power output of its modules and the declared values (confirmed by TÜV Rheinland testing on a 3.7 MWp project) and the use of components outside the scope of certification. This represents a significant risk for large investors and project financing in Europe. - **No confirmed BNEF Tier 1 status** - Amerisolar is not currently included in the BNEF Tier 1 lists of regularly cited manufacturers (Q1 2026), which are a key criterion for bankability in financing PV farms. For projects requiring non-recourse financing, this could make it more difficult to obtain credit or increase insurance costs. ## About this series The AS-8M132-HC series is a sophisticated photovoltaic module built using **monocrystalline PERC technology with half-cut cells**. This effectively minimizes current losses and improves the overall system performance, even in challenging lighting conditions. The 132 half-cut cells configuration reduces the internal resistance of the module, resulting in better performance under partial shading - a common challenge in rooftop and ground-mounted installations in the Polish climate. **Multi Busbar (MBB) technology** shortens the current flow path, reduces thermal stress, and extends the lifespan of the cells, ensuring stable power generation throughout the entire lifespan. The large module format with high individual power makes the AS-8M132-HC series particularly attractive for **commercial, industrial, and photovoltaic farm installations**, where maximizing energy production is a priority, given the limited available space. The robust **aluminum frame combined with tempered glass** ensures resistance to extreme weather conditions, snow loads, and strong winds. The manufacturer offers a **30-year power warranty** for the modules, making them a safe and long-term investment for demanding investors and professional installers seeking proven, large-scale solutions. ## Notable figures - Efficiency of 21.2% matches the \*\*PERC 650-700W\*\* median - At 212.5 W/m² power density, roof space requirements are typical for \*\*PERC 650-700W\*\* panels - At -0.34%/°C, hot weather performance is typical for \*\*PERC 650-700W\*\* panels - In the top 64% for efficiency among all PERC panels ## Questions ### What warranty is provided for the Amerisolar AS-8M132-HC panels? The AS-8M132-HC series comes with a 20-year product warranty and a 30-year linear power output warranty. The manufacturer guarantees that modules will retain at least 90% of their nominal power after 10 years and at least 80% after 30 years of operation. This is among the longest warranty standards available on the market, making these modules a sound long-term investment. ### How much does the Amerisolar AS-8M132-HC panel weigh, and is it suitable for a typical industrial building rooftop? A single AS-8M132-HC module weighs approximately 34 kg and measures 2384×1303×35 mm. This is a large-format module designed primarily for commercial, industrial, and ground-mounted utility-scale installations. Before mounting on a warehouse or factory roof, the structural load-bearing capacity of the roof must be verified, as the combined weight of modules in larger installations is substantial. ### How do the AS-8M132-HC panels perform under partial shading conditions? Thanks to their 132 half-cut cell configuration, the AS-8M132-HC modules are significantly less sensitive to partial shading than conventional full-cell panels. The half-cut cell technology splits the module into two independent electrical sections, so shading on one half does not completely block the output of the other. This is a notable advantage in installations where shadows from chimneys, antennas, or adjacent structures may occur. ### What is the efficiency of the Amerisolar AS-8M132-HC panels, and is it a competitive figure? The AS-8M132-HC modules achieve a module efficiency of 20.6–21.4%, depending on the power variant. For monocrystalline PERC technology in a large-format design, this is a strong result, comparable to leading commercial-grade products on the market. High efficiency translates directly into greater energy yield per square meter of roof or ground area. ### Do the Amerisolar AS-8M132-HC panels perform efficiently in winter and under low-irradiance conditions? Yes. The power temperature coefficient is -0.34%/°C, which means the AS-8M132-HC modules lose relatively little power at low temperatures and can actually perform more efficiently in winter than during summer heat. The PERC technology combined with half-cut cells also improves energy yield under diffuse light conditions, which are typical of autumn and winter days in Poland. ### Are the Amerisolar AS-8M132-HC modules bifacial? No, the AS-8M132-HC series consists of monofacial modules — they generate energy exclusively from the front surface, which is covered with tempered glass. If bifacial technology is a priority for your project — allowing reflected light from the ground surface to increase energy yield by several to over ten percent — you should consider other Amerisolar series or products designated BHC or BIHIKU. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Amerisolar_AS-8M132-HC_640-665W-ead16ff4efa2.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +3.8 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +3.8 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +40 W, cooler, +3.8 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +35 W, cooler, +3.6 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +3.6 pp | | [Amerisolar AS-8M132-HC-640W](https://comparepv.com/panel/artsolar-as-8m132-hc-640w) | 640 W | -20 W, -0.6 pp | | [Amerisolar AS-8M132-HC-645W](https://comparepv.com/panel/artsolar-as-8m132-hc-645w) | 645 W | -15 W, -0.5 pp | | [Amerisolar AS-8M132-HC-650W](https://comparepv.com/panel/artsolar-as-8m132-hc-650w) | 650 W | -10 W, -0.3 pp | | [Amerisolar AS-8M132-HC-655W](https://comparepv.com/panel/artsolar-as-8m132-hc-655w) | 655 W | Very close match | | [Amerisolar AS-8M132-HC-665W](https://comparepv.com/panel/artsolar-as-8m132-hc-665w) | 665 W | Very close match | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +145 W, cooler, +3.9 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +140 W, cooler, +3.6 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +135 W, cooler, +3.6 pp | | [AIKO AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 W | +130 W, cooler, +3.4 pp | --- Source: https://comparepv.com/panel/artsolar-as-8m132-hc-660w Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.