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730TB-AG vs 705TB-AG 14 of 19 identical Swap Change panels

Canadian Solar CS7N-730TB-AG vs Canadian Solar CS7N-705TB-AG

Canadian Solar CS7N-730TB-AG
CS7N-730TB-AG
730 Wp 23.50 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
Canadian Solar CS7N-705TB-AG
CS7N-705TB-AG
705 Wp 22.70 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

730TB-AG leads on the differences that matter

The largest is module efficiency: 0.80 pp more efficient. 14 of 19 comparable parameters are identical.

See all 5 differences
How alike are they
14 of 19 comparable
parameters are identical
identical differs
01

What actually differs

5 of 19 parameters
Parameter 730TB-AG 705TB-AG Difference
Module efficiency 23.50 % 22.70 % 0.80 pp more efficient
Power density 235.0 Wp/m² 227.0 Wp/m² 8.0 Wp/m² higher
Rated power 730 Wp 705 Wp 25 W more power
Open-circuit voltage 49.10 V 48.10 V 1.00 V apart
Voltage at max power 41.20 V 40.20 V 1.00 V apart
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.
730TB-AG
24,493 kWh
705TB-AG
23,654 kWh
Lifetime gap
839 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 730TB-AG 705TB-AG
Standard test conditions 25 °C 100.0% of rated power 730 W 705 W
Cool, bright day 40 °C 95.7% of rated power 698 W 674 W
Typical summer roof 55 °C 91.3% of rated power 666 W 644 W
Hot roof 70 °C 87.0% of rated power 635 W 613 W
03

Full specification

Parameter 730TB-AG 705TB-AG Difference
Power and efficiency
Rated power 730 Wp 705 Wp +25 W for 730TB-AG
Module efficiency 23.50 % 22.70 % +0.80 pp for 730TB-AG
Power density 235.0 Wp/m² 227.0 Wp/m² +8.0 Wp/m² for 730TB-AG
Open-circuit voltage 49.10 V 48.10 V 1.00 V apart
Voltage at max power 41.20 V 40.20 V 1.00 V apart
Short-circuit current 18.79 A 18.54 A Effectively the same
Current at max power 17.75 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 51.8 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

Against the whole database

14,005 panels
Efficiency
#716 vs #3,307
730TB-AG leads by 2,591 places
Power density
#800 vs #3,361
730TB-AG leads by 2,561 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#5,151 vs #7,628
730TB-AG leads by 2,477 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#312 vs #1,007
730TB-AG leads by 695 places
05

More useful comparisons

Open the full database
Same series, other bin
Canadian Solar CS7N-730TB-AG vs Canadian Solar CS7N-725TB-AG
One difference: module efficiency
Same series, other bin
Canadian Solar CS7N-730TB-AG vs Canadian Solar CS7N-720TB-AG
3 differences, the largest is module efficiency
Same series, other bin
Canadian Solar CS7N-730TB-AG vs Canadian Solar CS7N-715TB-AG
3 differences, the largest is module efficiency
Same series, other bin
Canadian Solar CS7N-730TB-AG vs Canadian Solar CS7N-710TB-AG
3 differences, the largest is module efficiency
Same series, other bin
Canadian Solar CS7N-730TB-AG vs Canadian Solar CS7N-700TB-AG
6 differences, the largest is module efficiency
Same series, other bin
Canadian Solar CS7N-730TB-AG vs Canadian Solar CS7N-695TB-AG
6 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Canadian Solar CS7N-730TB-AG or Canadian Solar CS7N-705TB-AG?
According to our database: Canadian Solar CS7N-730TB-AG has higher module efficiency (23.50% 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-730TB-AG and Canadian Solar CS7N-705TB-AG?
Canadian Solar CS7N-730TB-AG has a module efficiency of 23.50%, 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-730TB-AG use vs Canadian Solar CS7N-705TB-AG?
Canadian Solar CS7N-730TB-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-730TB-AG and Canadian Solar CS7N-705TB-AG?
Canadian Solar CS7N-730TB-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-730TB-AG and Canadian Solar CS7N-705TB-AG bifacial panels?
Both Canadian Solar CS7N-730TB-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.