--- title: "AE Solar AE550MD-144 vs AE Solar MD-144BS-550 - Solar Panel Comparison | ComparePV" description: "Compare AE Solar AE550MD-144 vs AE Solar MD-144BS-550 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-ae550md-144/ae-solar-md-144bs-550" image: "https://comparepv.com/og/compare/panels/ae-solar-ae550md-144/ae-solar-md-144bs-550.png" updated: 2026-09-11 --- # AE Solar AE550MD-144 vs AE Solar MD-144BS-550 One difference, none of them an advantage The largest is bifacial: No vs Yes. 17 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 AE550MD-144](https://comparepv.com/panel/ae-solar-ae550md-144) | [AE Solar MD-144BS-550](https://comparepv.com/panel/ae-solar-md-144bs-550) | | Manufacturer | AE Solar | AE Solar | | Power | 550 Wp | 550 Wp | | Efficiency | 21.31 % | 21.31 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | AE550MD-144 | MD-144BS-550 | Difference | | --- | --- | --- | --- | | Bifacial | No | Yes | No vs Yes | ## Every compared parameter | Parameter | AE550MD-144 | MD-144BS-550 | | --- | --- | --- | | Rated power | 550 Wp | 550 Wp | | Module efficiency | 21.31 % | 21.31 % | | Power density | 213.1 Wp/m² | 213.1 Wp/m² | | Open-circuit voltage | 51.44 V | 51.44 V | | Voltage at max power | 42.57 V | 42.57 V | | Short-circuit current | 13.67 A | 13.67 A | | Current at max power | 12.92 A | 12.92 A | | Temperature coefficient | -0.350 %/°C | -0.350 %/°C | | Dimensions | 2278x1133x30 mm | 2278x1133x30 mm | | Module area | 2.581 m² | 2.581 m² | | Weight | 26.5 kg | 26.5 kg | | Weight per kWp | 48.2 kg/kWp | 48.2 kg/kWp | | Product warranty | 30 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.55 %/yr | - | | Cell technology | PERC | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 144 | | Bifacial | No | Yes | ## Thirty-year yield Declared first-year losses, with 0.40% a year afterwards assumed for both panels, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.350 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other. - **Cumulative output, AE550MD-144:** 18,157 kWh - **Cumulative output, MD-144BS-550:** 18,157 kWh - **Gap:** No difference ## Output when hot | Condition | Cell temperature | AE550MD-144 | MD-144BS-550 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 550 W | 550 W | 100.0% of rated power | | Cool, bright day | 40 °C | 521 W | 521 W | 94.8% of rated power | | Typical summer roof | 55 °C | 492 W | 492 W | 89.5% of rated power | | Hot roof | 70 °C | 463 W | 463 W | 84.2% of rated power | ## Against the whole database | Measure | AE550MD-144 | MD-144BS-550 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #8,569 | #8,569 | 14,129 | Tied - the same position in the database | | Power density | #8,540 | #8,540 | 14,129 | Tied - the same position in the database | | Heat behaviour | #10,489 | #10,489 | 14,129 | Tied - the same position in the database | | Weight | #2,090 | #2,090 | 14,129 | Tied - the same position in the database | | Warranty | #21 | #21 | 14,129 | Tied - the same position in the database | | Overall | #3,087 | #3,087 | 14,129 | Tied - the same position in the database | ## Questions ### Which panel is better: AE Solar AE550MD-144 or AE Solar MD-144BS-550? According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of AE Solar AE550MD-144 and AE Solar MD-144BS-550? **AE Solar AE550MD-144** has a module efficiency of **21.31%**, while **AE Solar MD-144BS-550** is **21.31%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does AE Solar AE550MD-144 use vs AE Solar MD-144BS-550? **AE Solar AE550MD-144** uses **PERC** cells; **AE Solar MD-144BS-550** 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 AE550MD-144 and AE Solar MD-144BS-550? **AE Solar AE550MD-144** has a **30 years** power warranty; **AE Solar MD-144BS-550** 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 AE550MD-144 and AE Solar MD-144BS-550 bifacial panels? **AE Solar MD-144BS-550** is bifacial (captures light from both faces); **AE Solar AE550MD-144** is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath. ## Related comparisons - [AE Solar AE550MD-144 vs AE Solar AE MD-144 530W-550W (550W)](https://comparepv.com/compare/ae-solar-ae550md-144/ae-solar-ae-md-144-530w-550w-550w) - One difference: product warranty - [AE Solar AE550MD-144 vs AE Solar AE MD-144BD-550](https://comparepv.com/compare/ae-solar-ae550md-144/ae-solar-ae-md-144bd-550) - 4 differences, the largest is weight - [AE Solar AE550MD-144 vs AE Solar MD-144BS-550W](https://comparepv.com/compare/ae-solar-ae550md-144/ae-solar-md-144bs-550w) - 2 differences, the largest is product warranty - [AE Solar AE550MD-144 vs AE Solar AE MD-144-550](https://comparepv.com/compare/ae-solar-ae550md-144/ae-solar-ae-md-144-550) - One difference: product warranty - [AE Solar AE550MD-144 vs AE Solar AE MD-144 530W-550W (545W)](https://comparepv.com/compare/ae-solar-ae550md-144/ae-solar-ae-md-144-530w-550w-545w) - 2 differences, the largest is product warranty - [AE Solar AE550MD-144 vs AE Solar MD-144BS-545](https://comparepv.com/compare/ae-solar-ae550md-144/ae-solar-md-144bs-545) - 2 differences, the largest is bifacial --- Source: https://comparepv.com/compare/ae-solar-ae550md-144/ae-solar-md-144bs-550 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.