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144BD-550 vs 144BS-545 15 of 19 identical Swap Change panels

AE Solar AE MD-144BD-550 vs AE Solar AE MD-144BS-545

AE Solar AE MD-144BD-550
AE MD-144BD-550
550 Wp 21.31 % PERC Bifacial
Open panel page Datasheet PDF
VS
AE Solar AE MD-144BS-545
AE MD-144BS-545
545 Wp 21.12 % PERC Bifacial
Open panel page Datasheet PDF
The verdict

144BS-545 leads on the differences that matter

The largest is weight: 4.5 kg lighter. 15 of 19 comparable parameters are identical.

See all 4 differences
How alike are they
15 of 19 comparable
parameters are identical
identical differs
01

What actually differs

4 of 19 parameters
Parameter 144BD-550 144BS-545 Difference
Weight 31.0 kg 26.5 kg 4.5 kg lighter
Product warranty 15 yrs 30 yrs 15 yrs longer
Weight per kWp 56.4 kg/kWp 48.6 kg/kWp 7.7 kg/kWp lighter
Open-circuit voltage 51.44 V 50.01 V 1.43 V apart
02

What it means on a roof

Thirty years of production
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.
144BD-550
17,726 kWh
144BS-545
17,565 kWh
Lifetime gap
161 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 144BD-550 144BS-545
Standard test conditions 25 °C 100.0% of rated power 550 W 545 W
Cool, bright day 40 °C 94.8% of rated power 521 W 516 W
Typical summer roof 55 °C 89.5% of rated power 492 W 488 W
Hot roof 70 °C 84.2% of rated power 463 W 459 W
03

Full specification

Parameter 144BD-550 144BS-545 Difference
Power and efficiency
Rated power 550 Wp 545 Wp Effectively the same
Module efficiency 21.31 % 21.12 % Effectively the same
Power density 213.1 Wp/m² 211.2 Wp/m² Effectively the same
Open-circuit voltage 51.44 V 50.01 V 1.43 V apart
Voltage at max power 42.57 V 42.38 V Effectively the same
Short-circuit current 13.67 A 13.62 A Effectively the same
Current at max power 12.92 A 12.86 A Effectively the same
Temperature
Temperature coefficient -0.350 %/°C -0.350 %/°C Same
Mechanical
Dimensions 2278x1133x30 mm 2278x1133x30 mm Same
Module area 2.581 m² 2.581 m² Same
Weight 31.0 kg 26.5 kg -4.5 kg for 144BS-545
Weight per kWp 56.4 kg/kWp 48.6 kg/kWp -7.7 kg/kWp for 144BS-545
Warranty and degradation
Product warranty 15 yrs 30 yrs +15 yrs for 144BS-545
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.55 %/yr 0.55 %/yr Same
Technology
Cell technology PERC PERC Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#8,503 vs #9,255
144BD-550 leads by 752 places
Power density
#8,474 vs #9,256
144BD-550 leads by 782 places
Heat behaviour
#10,419 vs #10,419
Tied - the same position in the database
Weight
#10,606 vs #2,373
144BS-545 leads by 8,233 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#6,280 vs #3,473
144BS-545 leads by 2,807 places
05

More useful comparisons

Open the full database
Same series, other bin
AE Solar AE MD-144BD-550 vs AE Solar MD-144BS-550
3 differences, the largest is weight
Same series, other bin
AE Solar AE MD-144BD-550 vs AE Solar MD-144BS-550W
2 differences, the largest is weight
Same series, other bin
AE Solar AE MD-144BD-550 vs AE Solar MD-144BS-545
4 differences, the largest is weight
Same series, other bin
AE Solar AE MD-144BD-550 vs AE Solar AE MD-144BD-545
One difference: open-circuit voltage
Same series, other bin
AE Solar AE MD-144BD-550 vs AE Solar MD-144BS-545W
3 differences, the largest is weight
Same series, other bin
AE Solar AE MD-144BD-550 vs AE Solar MD-144BS-540
7 differences, the largest is weight
06

Written summary

07

Questions about this pairing

Which panel is better: AE Solar AE MD-144BD-550 or AE Solar AE MD-144BS-545?
According to our database: AE Solar AE MD-144BD-550 has higher module efficiency (21.31% vs 21.12%). 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 AE MD-144BS-545?
AE Solar AE MD-144BD-550 has a module efficiency of 21.31%, while AE Solar AE MD-144BS-545 is 21.12%. 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 AE MD-144BS-545?
AE Solar AE MD-144BD-550 uses PERC cells; AE Solar AE MD-144BS-545 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 AE MD-144BS-545?
AE Solar AE MD-144BD-550 has a 30 years power warranty; AE Solar AE MD-144BS-545 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 AE MD-144BS-545 bifacial panels?
Both AE Solar AE MD-144BD-550 and AE Solar AE MD-144BS-545 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.

Shop prices: See 5 AE Solar offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.