--- title: "AE Solar AE MD-144BD-550 vs AE Solar MD-144BD-550W - Solar Panel Comparison | ComparePV" description: "Compare AE Solar AE MD-144BD-550 vs AE Solar MD-144BD-550W 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-md-144bd-550/ae-solar-md-144bd-550w" updated: 2026-09-12 --- # AE Solar AE MD-144BD-550 vs AE Solar MD-144BD-550W Identical on every published parameter All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [AE Solar AE MD-144BD-550](https://comparepv.com/panel/ae-solar-ae-md-144bd-550) | [AE Solar MD-144BD-550W](https://comparepv.com/panel/ae-solar-md-144bd-550w) | | Manufacturer | AE Solar | AE Solar | | Power | 550 Wp | 550 Wp | | Efficiency | 21.31 % | 21.31 % | | Technology | PERC | PERC | ## Every compared parameter | Parameter | AE MD-144BD-550 | MD-144BD-550W | | --- | --- | --- | | 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 | 31.0 kg | 31.0 kg | | Weight per kWp | 56.4 kg/kWp | 56.4 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.55 %/yr | 0.55 %/yr | | Cell technology | PERC | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 144 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, 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, AE MD-144BD-550:** 17,726 kWh - **Cumulative output, MD-144BD-550W:** 17,726 kWh - **Gap:** No difference ## Output when hot | Condition | Cell temperature | AE MD-144BD-550 | MD-144BD-550W | 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 | AE MD-144BD-550 | MD-144BD-550W | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #8,503 | #8,503 | 14,005 | Tied - the same position in the database | | Power density | #8,474 | #8,474 | 14,005 | Tied - the same position in the database | | Heat behaviour | #10,419 | #10,419 | 14,005 | Tied - the same position in the database | | Weight | #10,606 | #10,606 | 14,005 | Tied - the same position in the database | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #6,280 | #6,280 | 14,005 | Tied - the same position in the database | ## Questions ### Which panel is better: AE Solar AE MD-144BD-550 or AE Solar MD-144BD-550W? 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 AE MD-144BD-550 and AE Solar MD-144BD-550W? **AE Solar AE MD-144BD-550** has a module efficiency of **21.31%**, while **AE Solar MD-144BD-**550 W**** is **21.31%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does AE Solar AE MD-144BD-550 use vs AE Solar MD-144BD-550W? **AE Solar AE MD-144BD-550** uses **PERC** cells; **AE Solar MD-144BD-**550 W**** 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 MD-144BD-550 and AE Solar MD-144BD-550W? **AE Solar AE MD-144BD-550** has a **30 years** power warranty; **AE Solar MD-144BD-**550 W**** 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 MD-144BD-550 and AE Solar MD-144BD-550W bifacial panels? Both **AE Solar AE MD-144BD-550** and **AE Solar MD-144BD-**550 W**** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath. ## Related comparisons - [AE Solar AE MD-144BD-550 vs AE Solar MD-144BS-550](https://comparepv.com/compare/ae-solar-ae-md-144bd-550/ae-solar-md-144bs-550) - 3 differences, the largest is weight - [AE Solar AE MD-144BD-550 vs AE Solar MD-144BS-550W](https://comparepv.com/compare/ae-solar-ae-md-144bd-550/ae-solar-md-144bs-550w) - 2 differences, the largest is weight - [AE Solar AE MD-144BD-550 vs AE Solar MD-144BS-545](https://comparepv.com/compare/ae-solar-ae-md-144bd-550/ae-solar-md-144bs-545) - 4 differences, the largest is weight - [AE Solar AE MD-144BD-550 vs AE Solar AE MD-144BD-545](https://comparepv.com/compare/ae-solar-ae-md-144bd-550/ae-solar-ae-md-144bd-545) - One difference: open-circuit voltage - [AE Solar AE MD-144BD-550 vs AE Solar MD-144BS-545W](https://comparepv.com/compare/ae-solar-ae-md-144bd-550/ae-solar-md-144bs-545w) - 3 differences, the largest is weight - [AE Solar AE MD-144BD-550 vs AE Solar MD-144BS-540](https://comparepv.com/compare/ae-solar-ae-md-144bd-550/ae-solar-md-144bs-540) - 7 differences, the largest is weight --- Source: https://comparepv.com/compare/ae-solar-ae-md-144bd-550/ae-solar-md-144bd-550w 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.