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ASTRO N5s CHSM54N-HC-435W vs CHSM54N-HC-440 17 of 19 identical Swap Change panels

Astronergy ASTRO N5s CHSM54N-HC-435W vs Astronergy CHSM54N-HC-440

ASTRO N5s CHSM54N-HC-435W
435 Wp 22.30 % TOPCon
Open panel page Datasheet PDF
VS
CHSM54N-HC-440
440 Wp 22.50 % N-type
Open panel page Datasheet PDF
The verdict

CHSM54N-HC-440 leads on the differences that matter

The largest is cell technology: TOPCon vs N-type. 17 of 19 comparable parameters are identical.

See all 2 differences
How alike are they
17 of 19 comparable
parameters are identical
identical differs
01

What actually differs

2 of 19 parameters
Parameter ASTRO N5s CHSM54N-HC-435W CHSM54N-HC-440 Difference
Cell technology TOPCon N-type TOPCon vs N-type
Module efficiency 22.30 % 22.50 % 0.20 pp more efficient
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-440
14,763 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario ASTRO N5s CHSM54N-HC-435W CHSM54N-HC-440
Standard test conditions 25 °C 100.0% of rated power 435 W 440 W
Cool, bright day 40 °C 95.7% of rated power 416 W 421 W
Typical summer roof 55 °C 91.3% of rated power 397 W 402 W
Hot roof 70 °C 87.0% of rated power 378 W 383 W
03

Full specification

Parameter ASTRO N5s CHSM54N-HC-435W CHSM54N-HC-440 Difference
Power and efficiency
Rated power 435 Wp 440 Wp Effectively the same
Module efficiency 22.30 % 22.50 % +0.20 pp for CHSM54N-HC-440
Power density 222.8 Wp/m² 225.3 Wp/m² Effectively the same
Open-circuit voltage 38.60 V 38.80 V Effectively the same
Voltage at max power 32.44 V 32.61 V Effectively the same
Short-circuit current 14.19 A 14.30 A Effectively the same
Current at max power 13.41 A 13.49 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 48.4 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 N-type TOPCon vs N-type
Cell type Monocrystalline Monocrystalline Same
Cell count 108 108 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#5,100 vs #4,222
CHSM54N-HC-440 leads by 878 places
Power density
#5,150 vs #4,099
CHSM54N-HC-440 leads by 1,051 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#2,656 vs #2,253
CHSM54N-HC-440 leads by 403 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#9,115 vs #8,696
CHSM54N-HC-440 leads by 419 places
05

More useful comparisons

Open the full database
Same series, other bin
Astronergy ASTRO N5s CHSM54N-HC-435W vs Astronergy CHSM54N-HC-445
4 differences, the largest is module efficiency
Same series, other bin
Astronergy ASTRO N5s CHSM54N-HC-435W vs Astronergy CHSM54N-HC-445W
3 differences, the largest is module efficiency
Same series, other bin
Astronergy ASTRO N5s CHSM54N-HC-435W vs Astronergy ASTRO N5s CHSM54N-HC-445W
3 differences, the largest is module efficiency
Same series, other bin
Astronergy ASTRO N5s CHSM54N-HC-435W vs Astronergy CHSM54N-HC-440W
One difference: module efficiency
Same series, other bin
Astronergy ASTRO N5s CHSM54N-HC-435W vs Astronergy CHSM54N(BL)-HC 440W
One difference: module efficiency
Same series, other bin
Astronergy ASTRO N5s CHSM54N-HC-435W vs Astronergy ASTRO N5s CHSM54N-HC-440W
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Astronergy ASTRO N5s CHSM54N-HC-435W or Astronergy CHSM54N-HC-440?
According to our database: Astronergy CHSM54N-HC-440 has higher module efficiency (22.50% 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-440?
Astronergy ASTRO N5s CHSM54N-HC-435 W has a module efficiency of 22.30%, while Astronergy CHSM54N-HC-440 is 22.50%. 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-440?
Astronergy ASTRO N5s CHSM54N-HC-435 W uses TOPCon cells; Astronergy CHSM54N-HC-440 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 Astronergy ASTRO N5s CHSM54N-HC-435W and Astronergy CHSM54N-HC-440?
Astronergy ASTRO N5s CHSM54N-HC-435 W has a 30 years power warranty; Astronergy CHSM54N-HC-440 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.