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MNB144(HCBF)-595W vs MNB156(HCBF)-635W 9 of 19 identical Swap Change panels

Philadelphia Solar PS-MNB144(HCBF)-595W vs Philadelphia Solar PS-MNB156(HCBF)-635W

Philadelphia Solar PS-MNB144(HCBF)-595W
Philadelphia Solar
PS-MNB144(HCBF)-595W
595 Wp 23.03 % N-type Bifacial
Open panel page Datasheet PDF
VS
Philadelphia Solar PS-MNB156(HCBF)-635W
Philadelphia Solar
PS-MNB156(HCBF)-635W
635 Wp 22.75 % N-type Bifacial
Open panel page Datasheet PDF
The verdict

MNB144(HCBF)-595W leads on the differences that matter

The largest is rated power: 40 W more power. 9 of 19 comparable parameters are identical.

See all 10 differences
How alike are they
9 of 19 comparable
parameters are identical
identical differs
01

What actually differs

10 of 19 parameters
Parameter MNB144(HCBF)-595W MNB156(HCBF)-635W Difference
Rated power 595 Wp 635 Wp 40 W more power
Weight 27.0 kg 32.5 kg 5.5 kg lighter
Weight per kWp 45.4 kg/kWp 51.2 kg/kWp 5.8 kg/kWp lighter
Open-circuit voltage 52.07 V 56.10 V 4.03 V apart
Module area 2.583 m² 2.794 m² 0.211 m² apart
Module efficiency 23.03 % 22.75 % 0.28 pp more efficient
Power density 230.3 Wp/m² 227.3 Wp/m² 3.1 Wp/m² higher
Cell count 144 156 12 cells apart
Voltage at max power 44.34 V 47.52 V 3.18 V apart
Dimensions 2278x1134x30 mm 2464x1134x35 mm 2278x1134x30 mm vs 2464x1134x35 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
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.
MNB144(HCBF)-595W
19,963 kWh
MNB156(HCBF)-635W
21,306 kWh
Lifetime gap
1,343 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario MNB144(HCBF)-595W MNB156(HCBF)-635W
Standard test conditions 25 °C 100.0% of rated power 595 W 635 W
Cool, bright day 40 °C 95.7% of rated power 569 W 607 W
Typical summer roof 55 °C 91.3% of rated power 543 W 580 W
Hot roof 70 °C 87.0% of rated power 517 W 552 W
03

Full specification

Parameter MNB144(HCBF)-595W MNB156(HCBF)-635W Difference
Power and efficiency
Rated power 595 Wp 635 Wp +40 W for MNB156(HCBF)-635W
Module efficiency 23.03 % 22.75 % +0.28 pp for MNB144(HCBF)-595W
Power density 230.3 Wp/m² 227.3 Wp/m² +3.1 Wp/m² for MNB144(HCBF)-595W
Open-circuit voltage 52.07 V 56.10 V 4.03 V apart
Voltage at max power 44.34 V 47.52 V 3.18 V apart
Short-circuit current 14.22 A 14.14 A Effectively the same
Current at max power 13.44 A 13.37 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2278x1134x30 mm 2464x1134x35 mm 2278x1134x30 mm vs 2464x1134x35 mm
Module area 2.583 m² 2.794 m² 0.211 m² apart
Weight 27.0 kg 32.5 kg -5.5 kg for MNB144(HCBF)-595W
Weight per kWp 45.4 kg/kWp 51.2 kg/kWp -5.8 kg/kWp for MNB144(HCBF)-595W
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology N-type N-type Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 156 12 cells apart
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#1,744 vs #3,207
MNB144(HCBF)-595W leads by 1,463 places
Power density
#1,758 vs #3,230
MNB144(HCBF)-595W leads by 1,472 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#708 vs #4,557
MNB144(HCBF)-595W leads by 3,849 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#3,213 vs #2,296
MNB156(HCBF)-635W leads by 917 places
05

More useful comparisons

Open the full database
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Philadelphia Solar PS-MNB144(HCBF)-595W vs Philadelphia Solar PS-MNG144(HCBF)-600W
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06

Written summary

07

Questions about this pairing

Which panel is better: Philadelphia Solar PS-MNB144(HCBF)-595W or Philadelphia Solar PS-MNB156(HCBF)-635W?
According to our database: Philadelphia Solar PS-MNB144(HCBF)-595 W has higher module efficiency (23.03% vs 22.75%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Philadelphia Solar PS-MNB144(HCBF)-595W and Philadelphia Solar PS-MNB156(HCBF)-635W?
Philadelphia Solar PS-MNB144(HCBF)-595 W has a module efficiency of 23.03%, while Philadelphia Solar PS-MNB156(HCBF)-635 W is 22.75%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Philadelphia Solar PS-MNB144(HCBF)-595W use vs Philadelphia Solar PS-MNB156(HCBF)-635W?
Philadelphia Solar PS-MNB144(HCBF)-595 W uses N-type cells; Philadelphia Solar PS-MNB156(HCBF)-635 W uses N-type. 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 Philadelphia Solar PS-MNB144(HCBF)-595W and Philadelphia Solar PS-MNB156(HCBF)-635W?
Philadelphia Solar PS-MNB144(HCBF)-595 W has a 30 years power warranty; Philadelphia Solar PS-MNB156(HCBF)-635 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 Philadelphia Solar PS-MNB144(HCBF)-595W and Philadelphia Solar PS-MNB156(HCBF)-635W bifacial panels?
Both Philadelphia Solar PS-MNB144(HCBF)-595 W and Philadelphia Solar PS-MNB156(HCBF)-635 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.

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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.