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HS720TC-MHG-D vs HS680TC-MHG-D 12 of 18 identical Swap Change panels

Horay Solar HS720TC-MHG-D vs Horay Solar HS680TC-MHG-D

HS720TC-MHG-D
720 Wp 23.20 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
VS
HS680TC-MHG-D
680 Wp 21.90 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
The verdict

HS720TC-MHG-D leads on the differences that matter

The largest is module efficiency: 1.30 pp more efficient. 12 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 6 differences
How alike are they
12 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

6 of 18 parameters
Parameter HS720TC-MHG-D HS680TC-MHG-D Difference
Module efficiency 23.20 % 21.90 % 1.30 pp more efficient
Rated power 720 Wp 680 Wp 40 W more power
Power density 231.8 Wp/m² 218.9 Wp/m² 12.9 Wp/m² higher
Weight per kWp 53.5 kg/kWp 56.6 kg/kWp 3.1 kg/kWp lighter
Open-circuit voltage 49.40 V 47.80 V 1.60 V apart
Voltage at max power 41.30 V 39.70 V 1.60 V apart
02

What it means on a roof

Thirty years of production
Declared first-year losses, with 0.40% a year afterwards assumed for both panels, 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.
HS720TC-MHG-D
24,157 kWh
HS680TC-MHG-D
22,815 kWh
Lifetime gap
1,342 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario HS720TC-MHG-D HS680TC-MHG-D
Standard test conditions 25 °C 100.0% of rated power 720 W 680 W
Cool, bright day 40 °C 95.8% of rated power 690 W 651 W
Typical summer roof 55 °C 91.6% of rated power 660 W 623 W
Hot roof 70 °C 87.4% of rated power 629 W 594 W
03

Full specification

Parameter HS720TC-MHG-D HS680TC-MHG-D Difference
Power and efficiency
Rated power 720 Wp 680 Wp +40 W for HS720TC-MHG-D
Module efficiency 23.20 % 21.90 % +1.30 pp for HS720TC-MHG-D
Power density 231.8 Wp/m² 218.9 Wp/m² +12.9 Wp/m² for HS720TC-MHG-D
Open-circuit voltage 49.40 V 47.80 V 1.60 V apart
Voltage at max power 41.30 V 39.70 V 1.60 V apart
Short-circuit current 18.49 A 18.15 A Effectively the same
Current at max power 17.44 A 17.13 A Effectively the same
Temperature
Temperature coefficient -0.280 %/°C -0.280 %/°C Same
Mechanical
Dimensions 2384x1303x33 mm 2384x1303x33 mm Same
Module area 3.106 m² 3.106 m² Same
Weight 38.5 kg 38.5 kg Same
Weight per kWp 53.5 kg/kWp 56.6 kg/kWp -3.1 kg/kWp for HS720TC-MHG-D
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#1,306 vs #6,783
HS720TC-MHG-D leads by 5,477 places
Power density
#1,347 vs #6,804
HS720TC-MHG-D leads by 5,457 places
Heat behaviour
#1,309 vs #1,309
Tied - the same position in the database
Weight
#7,424 vs #10,746
HS720TC-MHG-D leads by 3,322 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#350 vs #1,598
HS720TC-MHG-D leads by 1,248 places
05

More useful comparisons

Open the full database
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Horay Solar HS720TC-MHG-D vs Horay Solar HS700TC-MHG-D
3 differences, the largest is module efficiency
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Horay Solar HS720TC-MHG-D vs Horay Solar HS690TC-MHG-D
6 differences, the largest is module efficiency
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Horay Solar HS720TC-MHG-D vs Horay Solar HS650TC-MHD-D
9 differences, the largest is rated power
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Horay Solar HS720TC-MHG-D vs Horay Solar HS645TC-MHD-D
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Horay Solar HS720TC-MHG-D vs Horay Solar HS640TC-MHD-D
10 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Horay Solar HS720TC-MHG-D or Horay Solar HS680TC-MHG-D?
According to our database: Horay Solar HS720TC-MHG-D has higher module efficiency (23.20% vs 21.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Horay Solar HS720TC-MHG-D and Horay Solar HS680TC-MHG-D?
Horay Solar HS720TC-MHG-D has a module efficiency of 23.20%, while Horay Solar HS680TC-MHG-D is 21.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Horay Solar HS720TC-MHG-D use vs Horay Solar HS680TC-MHG-D?
Horay Solar HS720TC-MHG-D uses TOPCon cells; Horay Solar HS680TC-MHG-D 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 Horay Solar HS720TC-MHG-D and Horay Solar HS680TC-MHG-D?
Horay Solar HS720TC-MHG-D has a 30 years power warranty; Horay Solar HS680TC-MHG-D 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 Horay Solar HS720TC-MHG-D and Horay Solar HS680TC-MHG-D bifacial panels?
Both Horay Solar HS720TC-MHG-D and Horay Solar HS680TC-MHG-D 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.

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.