Hanersun HN21RN-54HT500W vs Hanersun HN21N-66HT725W
VS
The verdict
HN21N-66HT725W leads on the differences that matter
The largest is module efficiency: 0.80 pp more efficient. 6 of 19 comparable parameters are identical.
See all 13 differencesHow alike are they
6
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
13 of 19 parameters
What actually differs
Parameter
HN21RN-54HT500W
HN21N-66HT725W
Difference
Module efficiency
22.50 %
23.30 %
0.80 pp more efficient
Rated power
500 Wp
725 Wp
225 W more power
Weight
26.4 kg
37.4 kg
11.0 kg lighter
Product warranty
25 yrs
15 yrs
10 yrs longer
Power density
224.8 Wp/m²
233.4 Wp/m²
8.5 Wp/m² higher
Open-circuit voltage
39.90 V
49.20 V
9.30 V apart
Short-circuit current
15.95 A
18.54 A
2.59 A apart
Module area
2.224 m²
3.106 m²
0.883 m² apart
Cell technology
TOPCon
N-type
TOPCon vs N-type
Voltage at max power
33.24 V
41.40 V
8.16 V apart
Current at max power
15.05 A
17.52 A
2.47 A apart
Cell count
108
132
24 cells apart
Dimensions
1961x1134x30 mm
2384x1303x33 mm
1961x1134x30 mm vs 2384x1303x33 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 (-0.280 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
HN21RN-54HT500W
16,776 kWh
HN21N-66HT725W
24,325 kWh
Lifetime gap
7,549 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
HN21RN-54HT500W
HN21N-66HT725W
Standard test conditions
25 °C
100.0% of rated power
500 W
725 W
Cool, bright day
40 °C
95.8% of rated power
479 W
695 W
Typical summer roof
55 °C
91.6% of rated power
458 W
664 W
Hot roof
70 °C
87.4% of rated power
437 W
634 W
03
Full specification
Parameter
HN21RN-54HT500W
HN21N-66HT725W
Difference
Power and efficiency
Rated power
500 Wp
725 Wp
+225 W for HN21N-66HT725W
Module efficiency
22.50 %
23.30 %
+0.80 pp for HN21N-66HT725W
Power density
224.8 Wp/m²
233.4 Wp/m²
+8.5 Wp/m² for HN21N-66HT725W
Open-circuit voltage
39.90 V
49.20 V
9.30 V apart
Voltage at max power
33.24 V
41.40 V
8.16 V apart
Short-circuit current
15.95 A
18.54 A
2.59 A apart
Current at max power
15.05 A
17.52 A
2.47 A apart
Temperature
Temperature coefficient
-0.280 %/°C
-0.280 %/°C
Same
Mechanical
Dimensions
1961x1134x30 mm
2384x1303x33 mm
1961x1134x30 mm vs 2384x1303x33 mm
Module area
2.224 m²
3.106 m²
0.883 m² apart
Weight
26.4 kg
37.4 kg
-11.0 kg for HN21RN-54HT500W
Weight per kWp
52.8 kg/kWp
51.6 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
25 yrs
15 yrs
+10 yrs for HN21RN-54HT500W
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
132
24 cells apart
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#4,222
vs
#1,017
HN21N-66HT725W leads by 3,205 places
Power density
#4,468
vs
#936
HN21N-66HT725W leads by 3,532 places
Heat behaviour
#1,309
vs
#1,309
Tied - the same position in the database
Weight
#6,476
vs
#4,959
HN21N-66HT725W leads by 1,517 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#4,524
vs
#263
HN21N-66HT725W leads by 4,261 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Hanersun HN21RN-54HT500W or Hanersun HN21N-66HT725W?
According to our database: Hanersun HN21N-66HT725 W has higher module efficiency (23.30% vs 22.50%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Hanersun HN21RN-54HT500W and Hanersun HN21N-66HT725W?
Hanersun HN21RN-54HT500 W has a module efficiency of 22.50%, while Hanersun HN21N-66HT725 W is 23.30%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Hanersun HN21RN-54HT500W use vs Hanersun HN21N-66HT725W?
Hanersun HN21RN-54HT500 W uses TOPCon cells; Hanersun HN21N-66HT725 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 Hanersun HN21RN-54HT500W and Hanersun HN21N-66HT725W?
Hanersun HN21RN-54HT500 W has a 30 years power warranty; Hanersun HN21N-66HT725 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 Hanersun HN21RN-54HT500W and Hanersun HN21N-66HT725W bifacial panels?
Both Hanersun HN21RN-54HT500 W and Hanersun HN21N-66HT725 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.
Shop prices: See 19 Hanersun 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.