Canadian Solar CS7N-720TB-AG vs Canadian Solar CS7N-705TB-AG
VS
The verdict
720TB-AG 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
720TB-AG
705TB-AG
Difference
Module efficiency
23.20 %
22.70 %
0.50 pp more efficient
Power density
231.8 Wp/m²
227.0 Wp/m²
4.8 Wp/m² higher
Rated power
720 Wp
705 Wp
15 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.
720TB-AG
24,157 kWh
705TB-AG
23,654 kWh
Lifetime gap
503 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
720TB-AG
705TB-AG
Standard test conditions
25 °C
100.0% of rated power
720 W
705 W
Cool, bright day
40 °C
95.7% of rated power
689 W
674 W
Typical summer roof
55 °C
91.3% of rated power
657 W
644 W
Hot roof
70 °C
87.0% of rated power
626 W
613 W
03
Full specification
Parameter
720TB-AG
705TB-AG
Difference
Power and efficiency
Rated power
720 Wp
705 Wp
+15 W for 720TB-AG
Module efficiency
23.20 %
22.70 %
+0.50 pp for 720TB-AG
Power density
231.8 Wp/m²
227.0 Wp/m²
+4.8 Wp/m² for 720TB-AG
Open-circuit voltage
48.70 V
48.10 V
Effectively the same
Voltage at max power
40.80 V
40.20 V
Effectively the same
Short-circuit current
18.69 A
18.54 A
Effectively the same
Current at max power
17.67 A
17.55 A
Effectively the same
Temperature
Temperature coefficient
-0.290 %/°C
-0.290 %/°C
Same
Mechanical
Dimensions
2384x1303x33 mm
2384x1303x33 mm
Same
Module area
3.106 m²
3.106 m²
Same
Weight
37.8 kg
37.8 kg
Same
Weight per kWp
52.5 kg/kWp
53.6 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
12 yrs
12 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
132
132
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#1,306
vs
#3,307
720TB-AG leads by 2,001 places
Power density
#1,347
vs
#3,361
720TB-AG leads by 2,014 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#6,043
vs
#7,628
720TB-AG leads by 1,585 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#516
vs
#1,007
720TB-AG leads by 491 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: Canadian Solar CS7N-720TB-AG or Canadian Solar CS7N-705TB-AG?
According to our database: Canadian Solar CS7N-720TB-AG has higher module efficiency (23.20% vs 22.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Canadian Solar CS7N-720TB-AG and Canadian Solar CS7N-705TB-AG?
Canadian Solar CS7N-720TB-AG has a module efficiency of 23.20%, while Canadian Solar CS7N-705TB-AG is 22.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Canadian Solar CS7N-720TB-AG use vs Canadian Solar CS7N-705TB-AG?
Canadian Solar CS7N-720TB-AG uses TOPCon cells; Canadian Solar CS7N-705TB-AG 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 Canadian Solar CS7N-720TB-AG and Canadian Solar CS7N-705TB-AG?
Canadian Solar CS7N-720TB-AG has a 30 years power warranty; Canadian Solar CS7N-705TB-AG 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 Canadian Solar CS7N-720TB-AG and Canadian Solar CS7N-705TB-AG bifacial panels?
Both Canadian Solar CS7N-720TB-AG and Canadian Solar CS7N-705TB-AG 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.
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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.