--- title: "AE Solar AE ME-132 655W vs AE Solar MD-120BD-440 - Solar Panel Comparison | ComparePV" description: "Compare AE Solar AE ME-132 655W vs AE Solar MD-120BD-440 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/ae-solar-ae-me-132-655w/ae-solar-md-120bd-440" updated: 2026-09-11 --- # AE Solar AE ME-132 655W vs AE Solar MD-120BD-440 AE ME-132 655W leads on the differences that matter The largest is module efficiency: 0.69 pp more efficient. 3 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [AE Solar AE ME-132 655W](https://comparepv.com/panel/ae-solar-ae-me-132-655w) | [AE Solar MD-120BD-440](https://comparepv.com/panel/ae-solar-md-120bd-440) | | Manufacturer | AE Solar | AE Solar | | Power | 655 Wp | 440 Wp | | Efficiency | 21.11 % | 20.42 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | AE ME-132 655W | MD-120BD-440 | Difference | | --- | --- | --- | --- | | Module efficiency | 21.11 % | 20.42 % | +0.69 pp for AE ME-132 655W | | Rated power | 655 Wp | 440 Wp | +215 W for AE ME-132 655W | | Weight | 31.5 kg | 25.5 kg | -6.0 kg for MD-120BD-440 | | Weight per kWp | 48.1 kg/kWp | 58.0 kg/kWp | -9.9 kg/kWp for AE ME-132 655W | | Product warranty | 30 yrs | 15 yrs | +15 yrs for AE ME-132 655W | | Power density | 211.1 Wp/m² | 204.2 Wp/m² | +6.9 Wp/m² for AE ME-132 655W | | Open-circuit voltage | 45.70 V | 41.35 V | 4.35 V apart | | Short-circuit current | 18.38 A | 13.47 A | 4.91 A apart | | Module area | 3.103 m² | 2.155 m² | 0.948 m² apart | | Temperature coefficient | -0.340 %/°C | -0.350 %/°C | +0.010 %/°C for AE ME-132 655W | | Current at max power | 17.42 A | 12.71 A | 4.71 A apart | | Cell count | 132 | 120 | 12 cells apart | | Bifacial | No | Yes | No vs Yes | | Voltage at max power | 37.60 V | 34.62 V | 2.98 V apart | | Dimensions | 2383x1302x30 mm | 1902x1133x30 mm | 2383x1302x30 mm vs 1902x1133x30 mm | ## Every compared parameter | Parameter | AE ME-132 655W | MD-120BD-440 | | --- | --- | --- | | Rated power | 655 Wp | 440 Wp | | Module efficiency | 21.11 % | 20.42 % | | Power density | 211.1 Wp/m² | 204.2 Wp/m² | | Open-circuit voltage | 45.70 V | 41.35 V | | Voltage at max power | 37.60 V | 34.62 V | | Short-circuit current | 18.38 A | 13.47 A | | Current at max power | 17.42 A | 12.71 A | | Temperature coefficient | -0.340 %/°C | -0.350 %/°C | | Dimensions | 2383x1302x30 mm | 1902x1133x30 mm | | Module area | 3.103 m² | 2.155 m² | | Weight | 31.5 kg | 25.5 kg | | Weight per kWp | 48.1 kg/kWp | 58.0 kg/kWp | | Product warranty | 30 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | - | 0.55 %/yr | | Cell technology | PERC | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 120 | | Bifacial | No | Yes | ## Thirty-year yield A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year - **Cumulative output, AE ME-132 655W:** 21,977 kWh - **Cumulative output, MD-120BD-440:** 14,763 kWh - **Gap:** 7,214 kWh ## Output when hot | Condition | Cell temperature | AE ME-132 655W | MD-120BD-440 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 655 W | 440 W | 100.0% of rated power | | Cool, bright day | 40 °C | 622 W | 417 W | 94.8% of rated power | | Typical summer roof | 55 °C | 588 W | 394 W | 89.5% of rated power | | Hot roof | 70 °C | 555 W | 371 W | 84.2% of rated power | ## Against the whole database | Measure | AE ME-132 655W | MD-120BD-440 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #9,252 | #11,555 | 14,013 | AE ME-132 655W leads by 2,303 places | | Power density | #9,261 | #11,566 | 14,013 | AE ME-132 655W leads by 2,305 places | | Heat behaviour | #8,759 | #10,400 | 14,013 | AE ME-132 655W leads by 1,641 places | | Weight | #2,048 | #11,478 | 14,013 | AE ME-132 655W leads by 9,430 places | | Warranty | #21 | #21 | 14,013 | Tied - the same position in the database | | Overall | #936 | #10,595 | 14,013 | AE ME-132 655W leads by 9,659 places | ## Questions ### Which panel is better: AE Solar AE ME-132 655W or AE Solar MD-120BD-440? According to our database: **AE Solar AE ME-132 **655 W**** has higher module efficiency (**21.11%** vs **20.42%**); **AE Solar AE ME-132 **655 W**** tolerates heat better (temp coeff **-0.340%/°C** vs **-0.350%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of AE Solar AE ME-132 655W and AE Solar MD-120BD-440? **AE Solar AE ME-132 **655 W**** has a module efficiency of **21.11%**, while **AE Solar MD-120BD-440** is **20.42%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does AE Solar AE ME-132 655W use vs AE Solar MD-120BD-440? **AE Solar AE ME-132 **655 W**** uses **PERC** cells; **AE Solar MD-120BD-440** uses **PERC**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells. ### What is the warranty on AE Solar AE ME-132 655W and AE Solar MD-120BD-440? **AE Solar AE ME-132 **655 W**** has a **30 years** power warranty; **AE Solar MD-120BD-440** has a **30 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter. ### Are AE Solar AE ME-132 655W and AE Solar MD-120BD-440 bifacial panels? **AE Solar MD-120BD-440** is bifacial (captures light from both faces); **AE Solar AE ME-132 **655 W**** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath. ## Related comparisons - [AE Solar AE ME-132 655W vs AE Solar AE ME-132 660W](https://comparepv.com/compare/ae-solar-ae-me-132-655w/ae-solar-ae-me-132-660w) - The same specification on paper - [AE Solar AE ME-132 655W vs AE Solar AE ME-132 650W](https://comparepv.com/compare/ae-solar-ae-me-132-655w/ae-solar-ae-me-132-650w) - The same specification on paper - [AE Solar AE ME-132 655W vs AE Solar AE ME-132 645W](https://comparepv.com/compare/ae-solar-ae-me-132-655w/ae-solar-ae-me-132-645w) - 3 differences, the largest is module efficiency - [AE Solar AE ME-132 655W vs AE Solar AE ME-132 640W](https://comparepv.com/compare/ae-solar-ae-me-132-655w/ae-solar-ae-me-132-640w) - 3 differences, the largest is module efficiency - [AE Solar MD-120BD-440 vs AE Solar ME-132BD-660](https://comparepv.com/compare/ae-solar-md-120bd-440/ae-solar-me-132bd-660) - 12 differences, the largest is module efficiency - [AE Solar MD-120BD-440 vs AE Solar AE ME-132BD-660](https://comparepv.com/compare/ae-solar-md-120bd-440/ae-solar-ae-me-132bd-660) - 13 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/ae-solar-ae-me-132-655w/ae-solar-md-120bd-440 Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.