Hanersun HN21RN-54HT500W vs Hanersun HN21N-66HT745W
VS
The verdict
HN21N-66HT745W leads on the differences that matter
The largest is module efficiency: 1.50 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-66HT745W
Difference
Module efficiency
22.50 %
24.00 %
1.50 pp more efficient
Rated power
500 Wp
745 Wp
245 W more power
Power density
224.8 Wp/m²
239.8 Wp/m²
15.0 Wp/m² higher
Weight
26.4 kg
37.4 kg
11.0 kg lighter
Product warranty
25 yrs
15 yrs
10 yrs longer
Open-circuit voltage
39.90 V
50.00 V
10.10 V apart
Short-circuit current
15.95 A
18.70 A
2.75 A apart
Module area
2.224 m²
3.106 m²
0.883 m² apart
Voltage at max power
33.24 V
42.08 V
8.84 V apart
Current at max power
15.05 A
17.71 A
2.66 A apart
Cell count
108
132
24 cells apart
Weight per kWp
52.8 kg/kWp
50.2 kg/kWp
2.6 kg/kWp lighter
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-66HT745W
24,996 kWh
Lifetime gap
8,220 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
HN21RN-54HT500W
HN21N-66HT745W
Standard test conditions
25 °C
100.0% of rated power
500 W
745 W
Cool, bright day
40 °C
95.8% of rated power
479 W
714 W
Typical summer roof
55 °C
91.6% of rated power
458 W
682 W
Hot roof
70 °C
87.4% of rated power
437 W
651 W
03
Full specification
Parameter
HN21RN-54HT500W
HN21N-66HT745W
Difference
Power and efficiency
Rated power
500 Wp
745 Wp
+245 W for HN21N-66HT745W
Module efficiency
22.50 %
24.00 %
+1.50 pp for HN21N-66HT745W
Power density
224.8 Wp/m²
239.8 Wp/m²
+15.0 Wp/m² for HN21N-66HT745W
Open-circuit voltage
39.90 V
50.00 V
10.10 V apart
Voltage at max power
33.24 V
42.08 V
8.84 V apart
Short-circuit current
15.95 A
18.70 A
2.75 A apart
Current at max power
15.05 A
17.71 A
2.66 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
50.2 kg/kWp
-2.6 kg/kWp for HN21N-66HT745W
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
TOPCon
Same
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
#303
HN21N-66HT745W leads by 3,919 places
Power density
#4,468
vs
#339
HN21N-66HT745W leads by 4,129 places
Heat behaviour
#1,309
vs
#1,309
Tied - the same position in the database
Weight
#6,476
vs
#3,665
HN21N-66HT745W leads by 2,811 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#4,524
vs
#98
HN21N-66HT745W leads by 4,426 places
05
Open the full database
More useful comparisons
Same series, other bin
Hanersun
Hanersun HN21RN-54HT500W vs Hanersun HN21N-66HT750W
13 differences, the largest is module efficiency
Same series, other bin
Hanersun
Hanersun HN21RN-54HT500W vs Hanersun HN21N-66HT740W
13 differences, the largest is module efficiency
Same series, other bin
Hanersun
Hanersun HN21RN-54HT500W vs Hanersun HN21N-66HT735W
12 differences, the largest is module efficiency
Same series, other bin
Hanersun
Hanersun HN21RN-54HT500W vs Hanersun HN21N-66HT730W
13 differences, the largest is module efficiency
Same series, other bin
Hanersun
Hanersun HN21RN-54HT500W vs Hanersun HN21N-66HT725W
13 differences, the largest is module efficiency
Same series, other bin
Hanersun
Hanersun HN21RN-54HT500W vs Hanersun HN21N-66HT720W
13 differences, the largest is module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Hanersun HN21RN-54HT500W or Hanersun HN21N-66HT745W?
According to our database: Hanersun HN21N-66HT745 W has higher module efficiency (24.00% 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-66HT745W?
Hanersun HN21RN-54HT500 W has a module efficiency of 22.50%, while Hanersun HN21N-66HT745 W is 24.00%. 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-66HT745W?
Hanersun HN21RN-54HT500 W uses TOPCon cells; Hanersun HN21N-66HT745 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 Hanersun HN21RN-54HT500W and Hanersun HN21N-66HT745W?
Hanersun HN21RN-54HT500 W has a 30 years power warranty; Hanersun HN21N-66HT745 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-66HT745W bifacial panels?
Both Hanersun HN21RN-54HT500 W and Hanersun HN21N-66HT745 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.