Astronergy ASTRO N5s CHSM54N-HC-435W vs Astronergy CHSM54N-HC-445W
VS
The verdict
CHSM54N-HC-445W leads on the differences that matter
The largest is module efficiency: 0.50 pp more efficient. 16 of 19 comparable parameters are identical.
See all 3 differencesHow alike are they
16
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
3 of 19 parameters
What actually differs
Parameter
ASTRO N5s CHSM54N-HC-435W
CHSM54N-HC-445W
Difference
Module efficiency
22.30 %
22.80 %
0.50 pp more efficient
Power density
222.8 Wp/m²
227.9 Wp/m²
5.1 Wp/m² higher
Rated power
435 Wp
445 Wp
10 W more power
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.
ASTRO N5s CHSM54N-HC-435W
14,595 kWh
CHSM54N-HC-445W
14,931 kWh
Lifetime gap
336 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
ASTRO N5s CHSM54N-HC-435W
CHSM54N-HC-445W
Standard test conditions
25 °C
100.0% of rated power
435 W
445 W
Cool, bright day
40 °C
95.7% of rated power
416 W
426 W
Typical summer roof
55 °C
91.3% of rated power
397 W
406 W
Hot roof
70 °C
87.0% of rated power
378 W
387 W
03
Full specification
Parameter
ASTRO N5s CHSM54N-HC-435W
CHSM54N-HC-445W
Difference
Power and efficiency
Rated power
435 Wp
445 Wp
+10 W for CHSM54N-HC-445W
Module efficiency
22.30 %
22.80 %
+0.50 pp for CHSM54N-HC-445W
Power density
222.8 Wp/m²
227.9 Wp/m²
+5.1 Wp/m² for CHSM54N-HC-445W
Open-circuit voltage
38.60 V
39.00 V
Effectively the same
Voltage at max power
32.44 V
32.77 V
Effectively the same
Short-circuit current
14.19 A
14.41 A
Effectively the same
Current at max power
13.41 A
13.58 A
Effectively the same
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
1722x1134x30 mm
1722x1134x30 mm
Same
Module area
1.953 m²
1.953 m²
Same
Weight
21.3 kg
21.3 kg
Same
Weight per kWp
49.0 kg/kWp
47.9 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
15 yrs
15 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.40 %/yr
Same
Technology
Cell technology
TOPCon
TOPCon
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
108
108
Same
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#5,100
vs
#2,714
CHSM54N-HC-445W leads by 2,386 places
Power density
#5,150
vs
#2,790
CHSM54N-HC-445W leads by 2,360 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#2,656
vs
#1,948
CHSM54N-HC-445W leads by 708 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#9,115
vs
#8,168
CHSM54N-HC-445W leads by 947 places
05
Open the full database
More useful comparisons
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Astronergy ASTRO N5s CHSM54N-HC-435W vs Astronergy CHSM54N-HC-445
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Astronergy ASTRO N5s CHSM54N-HC-435W vs Astronergy CHSM54N(BL)-HC 440W
One difference: module efficiency
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06
Written summary
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07
Questions about this pairing
Which panel is better: Astronergy ASTRO N5s CHSM54N-HC-435W or Astronergy CHSM54N-HC-445W?
According to our database: Astronergy CHSM54N-HC-445 W has higher module efficiency (22.80% vs 22.30%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Astronergy ASTRO N5s CHSM54N-HC-435W and Astronergy CHSM54N-HC-445W?
Astronergy ASTRO N5s CHSM54N-HC-435 W has a module efficiency of 22.30%, while Astronergy CHSM54N-HC-445 W is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Astronergy ASTRO N5s CHSM54N-HC-435W use vs Astronergy CHSM54N-HC-445W?
Astronergy ASTRO N5s CHSM54N-HC-435 W uses TOPCon cells; Astronergy CHSM54N-HC-445 W 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 Astronergy ASTRO N5s CHSM54N-HC-435W and Astronergy CHSM54N-HC-445W?
Astronergy ASTRO N5s CHSM54N-HC-435 W has a 30 years power warranty; Astronergy CHSM54N-HC-445 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 41 Astronergy 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.