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735BHDG vs 745BHDG 16 of 19 identical Swap Change panels

Risen RSM132-8-735BHDG vs Risen RSM132-8-745BHDG

Risen RSM132-8-735BHDG
RSM132-8-735BHDG
735 Wp 23.70 % HJT Bifacial
Open panel page Datasheet PDF
VS
Risen RSM132-8-745BHDG
RSM132-8-745BHDG
745 Wp 24.00 % HJT Bifacial
Open panel page Datasheet PDF
The verdict

745BHDG leads on the differences that matter

The largest is module efficiency: 0.30 pp more efficient. 16 of 19 comparable parameters are identical.

See all 3 differences
How alike are they
16 of 19 comparable
parameters are identical
identical differs
01

What actually differs

3 of 19 parameters
Parameter 735BHDG 745BHDG Difference
Module efficiency 23.70 % 24.00 % 0.30 pp more efficient
Power density 236.6 Wp/m² 239.8 Wp/m² 3.2 Wp/m² higher
Rated power 735 Wp 745 Wp 10 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 (-0.240 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
735BHDG
25,044 kWh
745BHDG
25,385 kWh
Lifetime gap
341 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 735BHDG 745BHDG
Standard test conditions 25 °C 100.0% of rated power 735 W 745 W
Cool, bright day 40 °C 96.4% of rated power 709 W 718 W
Typical summer roof 55 °C 92.8% of rated power 682 W 691 W
Hot roof 70 °C 89.2% of rated power 656 W 665 W
03

Full specification

Parameter 735BHDG 745BHDG Difference
Power and efficiency
Rated power 735 Wp 745 Wp +10 W for 745BHDG
Module efficiency 23.70 % 24.00 % +0.30 pp for 745BHDG
Power density 236.6 Wp/m² 239.8 Wp/m² +3.2 Wp/m² for 745BHDG
Open-circuit voltage 50.40 V 50.54 V Effectively the same
Voltage at max power 42.26 V 42.38 V Effectively the same
Short-circuit current 18.47 A 18.65 A Effectively the same
Current at max power 17.41 A 17.59 A Effectively the same
Temperature
Temperature coefficient -0.240 %/°C -0.240 %/°C Same
Mechanical
Dimensions 2384x1303x33 mm 2384x1303x33 mm Same
Module area 3.106 m² 3.106 m² Same
Weight 37.5 kg 37.5 kg Same
Weight per kWp 51.0 kg/kWp 50.3 kg/kWp Effectively the same
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.30 %/yr 0.30 %/yr Same
Technology
Cell technology HJT HJT Same
Cell type Monocrystalline Monocrystalline Same
Cell count 132 132 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#517 vs #303
745BHDG leads by 214 places
Power density
#582 vs #339
745BHDG leads by 243 places
Heat behaviour
#13 vs #13
Tied - the same position in the database
Weight
#4,360 vs #3,718
745BHDG leads by 642 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#155 vs #98
745BHDG leads by 57 places
05

More useful comparisons

Open the full database
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Risen RSM132-8-735BHDG vs Risen RSM132-8-740BHDG
The same specification on paper
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Risen RSM132-8-735BHDG vs Risen RSM132-8-730BHDG
4 differences, the largest is weight
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Risen RSM132-8-735BHDG vs Risen RSM132-8-725BHDG
6 differences, the largest is module efficiency
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Risen RSM132-8-735BHDG vs Risen RSM132-8-720BHDG
6 differences, the largest is module efficiency
Same manufacturer
Risen RSM132-8-735BHDG vs Risen RSM132-8-715BHDG
6 differences, the largest is module efficiency
Same manufacturer
Risen RSM132-8-735BHDG vs Risen RSM132-8-700-715BHDG-715
7 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Risen RSM132-8-735BHDG or Risen RSM132-8-745BHDG?
According to our database: Risen RSM132-8-745BHDG has higher module efficiency (24.00% vs 23.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Risen RSM132-8-735BHDG and Risen RSM132-8-745BHDG?
Risen RSM132-8-735BHDG has a module efficiency of 23.70%, while Risen RSM132-8-745BHDG is 24.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Risen RSM132-8-735BHDG use vs Risen RSM132-8-745BHDG?
Risen RSM132-8-735BHDG uses HJT cells; Risen RSM132-8-745BHDG uses HJT. 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 Risen RSM132-8-735BHDG and Risen RSM132-8-745BHDG?
Risen RSM132-8-735BHDG has a 30 years power warranty; Risen RSM132-8-745BHDG 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 Risen RSM132-8-735BHDG and Risen RSM132-8-745BHDG bifacial panels?
Both Risen RSM132-8-735BHDG and Risen RSM132-8-745BHDG 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 23 Risen 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.