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7M144N-HC-590 vs 8M132-HC-645W 4 of 19 identical Swap Change panels

Amerisolar AS-7M144N-HC-590 vs Amerisolar AS-8M132-HC-645W

Amerisolar
AS-7M144N-HC-590
590 Wp 22.83 % TOPCon
Open panel page Datasheet PDF
VS
Amerisolar
AS-8M132-HC-645W
645 Wp 20.76 % PERC
Open panel page Datasheet PDF
The verdict

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

The largest is module efficiency: 2.07 pp more efficient. 4 of 19 comparable parameters are identical.

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

What actually differs

15 of 19 parameters
Parameter 7M144N-HC-590 8M132-HC-645W Difference
Module efficiency 22.83 % 20.76 % 2.07 pp more efficient
Temperature coefficient -0.300 %/°C -0.340 %/°C 0.040 %/°C better in heat
Rated power 590 Wp 645 Wp 55 W more power
Power density 228.3 Wp/m² 207.6 Wp/m² 20.7 Wp/m² higher
Annual degradation 0.40 %/yr 0.60 %/yr 0.20 %/yr slower
Weight 27.5 kg 34.0 kg 6.5 kg lighter
Weight per kWp 46.6 kg/kWp 52.7 kg/kWp 6.1 kg/kWp lighter
Open-circuit voltage 51.60 V 45.30 V 6.30 V apart
Short-circuit current 14.34 A 18.31 A 3.97 A apart
Module area 2.584 m² 3.106 m² 0.522 m² apart
Cell technology TOPCon PERC TOPCon vs PERC
Voltage at max power 43.40 V 37.50 V 5.90 V apart
Current at max power 13.59 A 17.20 A 3.61 A apart
Cell count 144 132 12 cells apart
Dimensions 2279x1134x30 mm 2384x1303x35 mm 2279x1134x30 mm vs 2384x1303x35 mm
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
7M144N-HC-590
19,796 kWh
8M132-HC-645W
20,619 kWh
Lifetime gap
823 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 7M144N-HC-590 8M132-HC-645W
Standard test conditions 25 °C 100.0% of rated power 590 W 645 W
Cool, bright day 40 °C 94.9% of rated power 563 W 612 W
Typical summer roof 55 °C 89.8% of rated power 537 W 579 W
Hot roof 70 °C 84.7% of rated power 510 W 546 W
03

Full specification

Parameter 7M144N-HC-590 8M132-HC-645W Difference
Power and efficiency
Rated power 590 Wp 645 Wp +55 W for 8M132-HC-645W
Module efficiency 22.83 % 20.76 % +2.07 pp for 7M144N-HC-590
Power density 228.3 Wp/m² 207.6 Wp/m² +20.7 Wp/m² for 7M144N-HC-590
Open-circuit voltage 51.60 V 45.30 V 6.30 V apart
Voltage at max power 43.40 V 37.50 V 5.90 V apart
Short-circuit current 14.34 A 18.31 A 3.97 A apart
Current at max power 13.59 A 17.20 A 3.61 A apart
Temperature
Temperature coefficient -0.300 %/°C -0.340 %/°C +0.040 %/°C for 7M144N-HC-590
Mechanical
Dimensions 2279x1134x30 mm 2384x1303x35 mm 2279x1134x30 mm vs 2384x1303x35 mm
Module area 2.584 m² 3.106 m² 0.522 m² apart
Weight 27.5 kg 34.0 kg -6.5 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 0.60 %/yr -0.20 %/yr for 7M144N-HC-590
Technology
Cell technology TOPCon PERC TOPCon vs PERC
Cell type Monocrystalline Monocrystalline Same
Cell count 144 132 12 cells apart
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#2,738 vs #10,690
7M144N-HC-590 leads by 7,952 places
Power density
#2,786 vs #10,638
7M144N-HC-590 leads by 7,852 places
Heat behaviour
#6,152 vs #8,846
7M144N-HC-590 leads by 2,694 places
Weight
#1,250 vs #6,416
7M144N-HC-590 leads by 5,166 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,157 vs #2,596
7M144N-HC-590 leads by 439 places
05

More useful comparisons

Open the full database
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Amerisolar AS-7M144N-HC-590 vs Amerisolar AS-7M144N-HC-585
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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-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-8M132-HC-645W?
According to our database: Amerisolar AS-7M144N-HC-590 has higher module efficiency (22.83% vs 20.76%); Amerisolar AS-7M144N-HC-590 tolerates heat better (temp coeff -0.300%/°C vs -0.340%/°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-8M132-HC-645W?
Amerisolar AS-7M144N-HC-590 has a module efficiency of 22.83%, while Amerisolar AS-8M132-HC-645 W is 20.76%. 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-8M132-HC-645W?
Amerisolar AS-7M144N-HC-590 uses TOPCon cells; Amerisolar AS-8M132-HC-645 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 Amerisolar AS-7M144N-HC-590 and Amerisolar AS-8M132-HC-645W?
Amerisolar AS-7M144N-HC-590 has a 30 years power warranty; Amerisolar AS-8M132-HC-645 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.

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.