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720MH-132 vs 660MH-132 8 of 18 identical Swap Change panels

Phono Solar NS-720MH-132 vs Phono Solar NS-660MH-132

NS-720MH-132
720 Wp 23.17 % N-type Incomplete
Open panel page Datasheet PDF
VS
NS-660MH-132
660 Wp 21.24 % TOPCon Incomplete
Open panel page Datasheet PDF
The verdict

720MH-132 leads on the differences that matter

The largest is module efficiency: 1.93 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 720MH-132 660MH-132 Difference
Module efficiency 23.17 % 21.24 % 1.93 pp more efficient
Rated power 720 Wp 660 Wp 60 W more power
Power density 231.8 Wp/m² 212.5 Wp/m² 19.3 Wp/m² higher
Performance warranty 25 yrs 30 yrs 5 yrs longer
Weight 34.0 kg 38.7 kg 4.7 kg lighter
Weight per kWp 47.2 kg/kWp 58.6 kg/kWp 11.4 kg/kWp lighter
Open-circuit voltage 50.00 V 45.40 V 4.60 V apart
Cell technology N-type TOPCon N-type vs TOPCon
Voltage at max power 41.89 V 38.30 V 3.59 V apart
Short-circuit current 18.00 A 18.63 A 0.63 A apart
02

What it means on a roof

Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
720MH-132
24,157 kWh
660MH-132
22,144 kWh
Lifetime gap
2,013 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 720MH-132 660MH-132
Standard test conditions 25 °C 100.0% of rated power 720 W 660 W
Cool, bright day 40 °C 95.7% of rated power 689 W 631 W
Typical summer roof 55 °C 91.3% of rated power 657 W 603 W
Hot roof 70 °C 87.0% of rated power 626 W 574 W
03

Full specification

Parameter 720MH-132 660MH-132 Difference
Power and efficiency
Rated power 720 Wp 660 Wp +60 W for 720MH-132
Module efficiency 23.17 % 21.24 % +1.93 pp for 720MH-132
Power density 231.8 Wp/m² 212.5 Wp/m² +19.3 Wp/m² for 720MH-132
Open-circuit voltage 50.00 V 45.40 V 4.60 V apart
Voltage at max power 41.89 V 38.30 V 3.59 V apart
Short-circuit current 18.00 A 18.63 A 0.63 A apart
Current at max power 17.19 A 17.24 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2384x1303x30 mm 2384x1303x30 mm Same
Module area 3.106 m² 3.106 m² Same
Weight 34.0 kg 38.7 kg -4.7 kg for 720MH-132
Weight per kWp 47.2 kg/kWp 58.6 kg/kWp -11.4 kg/kWp for 720MH-132
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 25 yrs 30 yrs +5 yrs for 660MH-132
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology N-type TOPCon N-type vs TOPCon
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#1,518 vs #9,103
720MH-132 leads by 7,585 places
Power density
#1,390 vs #9,028
720MH-132 leads by 7,638 places
Heat behaviour
#2,220 vs #2,220
Tied - the same position in the database
Weight
#1,588 vs #11,906
720MH-132 leads by 10,318 places
Warranty
#9,912 vs #21
660MH-132 leads by 9,891 places
Overall
#689 vs #2,617
720MH-132 leads by 1,928 places
05

More useful comparisons

Open the full database
Same series, other bin
Phono Solar NS-720MH-132 vs Phono Solar NS-730MH-132
3 differences, the largest is module efficiency
Same series, other bin
Phono Solar NS-720MH-132 vs Phono Solar NS-710MH-132
3 differences, the largest is module efficiency
Same series, other bin
Phono Solar NS-720MH-132 vs Phono Solar NS-700MH-132
3 differences, the largest is module efficiency
Same series, other bin
Phono Solar NS-720MH-132 vs Phono Solar NS-690MH-132
5 differences, the largest is module efficiency
Same series, other bin
Phono Solar NS-720MH-132 vs Phono Solar NS-670MH-132
10 differences, the largest is module efficiency
Same series, other bin
Phono Solar NS-720MH-132 vs Phono Solar NS-665MH-132
10 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Phono Solar NS-720MH-132 or Phono Solar NS-660MH-132?
According to our database: Phono Solar NS-720MH-132 has higher module efficiency (23.17% vs 21.24%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Phono Solar NS-720MH-132 and Phono Solar NS-660MH-132?
Phono Solar NS-720MH-132 has a module efficiency of 23.17%, while Phono Solar NS-660MH-132 is 21.24%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Phono Solar NS-720MH-132 use vs Phono Solar NS-660MH-132?
Phono Solar NS-720MH-132 uses N-type cells; Phono Solar NS-660MH-132 uses TOPCon. 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 Phono Solar NS-720MH-132 and Phono Solar NS-660MH-132?
Phono Solar NS-720MH-132 has a 25 years power warranty; Phono Solar NS-660MH-132 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.

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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.