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7M144N-HC-590 vs 7M144-HC-550 8 of 18 identical Swap Change panels

Amerisolar AS-7M144N-HC-590 vs Amerisolar AS-7M144-HC-550

Amerisolar
AS-7M144N-HC-590
590 Wp 22.83 % TOPCon
Open panel page Datasheet PDF
VS
Amerisolar
AS-7M144-HC-550
550 Wp 21.28 % PERC Incomplete
Open panel page Datasheet PDF
The verdict

7M144N-HC-590 leads on the differences that matter

The largest is module efficiency: 1.55 pp more efficient. 8 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 10 differences
How alike are they
8 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

10 of 18 parameters
Parameter 7M144N-HC-590 7M144-HC-550 Difference
Module efficiency 22.83 % 21.28 % 1.55 pp more efficient
Temperature coefficient -0.300 %/°C -0.360 %/°C 0.060 %/°C better in heat
Rated power 590 Wp 550 Wp 40 W more power
Power density 228.3 Wp/m² 212.8 Wp/m² 15.5 Wp/m² higher
Weight per kWp 46.6 kg/kWp 52.7 kg/kWp 6.1 kg/kWp lighter
Cell technology TOPCon PERC TOPCon vs PERC
Weight 27.5 kg 29.0 kg 1.5 kg lighter
Open-circuit voltage 51.60 V 50.00 V 1.60 V apart
Dimensions 2279x1134x30 mm 2279x1134x35 mm 2279x1134x30 mm vs 2279x1134x35 mm
Voltage at max power 43.40 V 41.80 V 1.60 V apart
02

What it means on a roof

Thirty years of production
Declared first-year losses, with 0.40% a year afterwards assumed for both panels, at 1,200 kWh/kWp a year
7M144N-HC-590
19,796 kWh
7M144-HC-550
18,157 kWh
Lifetime gap
1,639 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 7M144N-HC-590 7M144-HC-550
Standard test conditions 25 °C 100.0% of rated power 590 W 550 W
Cool, bright day 40 °C 94.6% of rated power 563 W 520 W
Typical summer roof 55 °C 89.2% of rated power 537 W 491 W
Hot roof 70 °C 83.8% of rated power 510 W 461 W
03

Full specification

Parameter 7M144N-HC-590 7M144-HC-550 Difference
Power and efficiency
Rated power 590 Wp 550 Wp +40 W for 7M144N-HC-590
Module efficiency 22.83 % 21.28 % +1.55 pp for 7M144N-HC-590
Power density 228.3 Wp/m² 212.8 Wp/m² +15.5 Wp/m² for 7M144N-HC-590
Open-circuit voltage 51.60 V 50.00 V 1.60 V apart
Voltage at max power 43.40 V 41.80 V 1.60 V apart
Short-circuit current 14.34 A 13.94 A Effectively the same
Current at max power 13.59 A 13.16 A Effectively the same
Temperature
Temperature coefficient -0.300 %/°C -0.360 %/°C +0.060 %/°C for 7M144N-HC-590
Mechanical
Dimensions 2279x1134x30 mm 2279x1134x35 mm 2279x1134x30 mm vs 2279x1134x35 mm
Module area 2.584 m² 2.584 m² Same
Weight 27.5 kg 29.0 kg -1.5 kg for 7M144N-HC-590
Weight per kWp 46.6 kg/kWp 52.7 kg/kWp -6.1 kg/kWp for 7M144N-HC-590
Warranty and degradation
Product warranty 20 yrs 20 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr - Not published by Amerisolar
Technology
Cell technology TOPCon PERC TOPCon vs PERC
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#2,738 vs #8,863
7M144N-HC-590 leads by 6,125 places
Power density
#2,786 vs #8,709
7M144N-HC-590 leads by 5,923 places
Heat behaviour
#6,152 vs #12,425
7M144N-HC-590 leads by 6,273 places
Weight
#1,250 vs #6,427
7M144N-HC-590 leads by 5,177 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,157 vs #5,288
7M144N-HC-590 leads by 3,131 places
05

More useful comparisons

Open the full database
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Amerisolar AS-7M144N-HC-590 vs Amerisolar AS-7M144N-HC-580
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Amerisolar AS-7M144N-HC-590 vs Amerisolar AS-7M144N-HC-570
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Amerisolar AS-7M144N-HC-590 vs Amerisolar AS-7M144N-HC-565
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Amerisolar AS-7M144N-HC-590 vs Amerisolar AS-7M144N-HC-560
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06

Written summary

07

Questions about this pairing

Which panel is better: Amerisolar AS-7M144N-HC-590 or Amerisolar AS-7M144-HC-550?
According to our database: Amerisolar AS-7M144N-HC-590 has higher module efficiency (22.83% vs 21.28%); Amerisolar AS-7M144N-HC-590 tolerates heat better (temp coeff -0.300%/°C vs -0.360%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Amerisolar AS-7M144N-HC-590 and Amerisolar AS-7M144-HC-550?
Amerisolar AS-7M144N-HC-590 has a module efficiency of 22.83%, while Amerisolar AS-7M144-HC-550 is 21.28%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Amerisolar AS-7M144N-HC-590 use vs Amerisolar AS-7M144-HC-550?
Amerisolar AS-7M144N-HC-590 uses TOPCon cells; Amerisolar AS-7M144-HC-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 Amerisolar AS-7M144N-HC-590 and Amerisolar AS-7M144-HC-550?
Amerisolar AS-7M144N-HC-590 has a 30 years power warranty; Amerisolar AS-7M144-HC-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.

Shop prices: See 3 Amerisolar 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.