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740BHDG vs 700-715BHDG-705 10 of 19 identical Swap Change panels

Risen RSM132-8-740BHDG vs Risen RSM132-8-700-715BHDG-705

Risen RSM132-8-740BHDG
RSM132-8-740BHDG
740 Wp 23.80 % HJT Bifacial
Open panel page Datasheet PDF
VS
Risen RSM132-8-700-715BHDG-705
RSM132-8-700-715BHDG-705
705 Wp 22.70 % HJT Bifacial
Open panel page Datasheet PDF
The verdict

740BHDG leads on the differences that matter

The largest is module efficiency: 1.10 pp more efficient. 10 of 19 comparable parameters are identical.

See all 9 differences
How alike are they
10 of 19 comparable
parameters are identical
identical differs
01

What actually differs

9 of 19 parameters
Parameter 740BHDG 700-715BHDG-705 Difference
Module efficiency 23.80 % 22.70 % 1.10 pp more efficient
Power density 238.2 Wp/m² 227.0 Wp/m² 11.3 Wp/m² higher
Rated power 740 Wp 705 Wp 35 W more power
Weight per kWp 50.7 kg/kWp 56.7 kg/kWp 6.1 kg/kWp lighter
Annual degradation 0.30 %/yr 0.40 %/yr 0.10 %/yr slower
Weight 37.5 kg 40.0 kg 2.5 kg lighter
Short-circuit current 18.56 A 17.91 A 0.65 A apart
Dimensions 2384x1303x33 mm 2384x1303x35 mm 2384x1303x33 mm vs 2384x1303x35 mm
Current at max power 17.50 A 16.86 A 0.64 A 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 (-0.240 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
740BHDG
25,215 kWh
700-715BHDG-705
23,654 kWh
Lifetime gap
1,561 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 740BHDG 700-715BHDG-705
Standard test conditions 25 °C 100.0% of rated power 740 W 705 W
Cool, bright day 40 °C 96.4% of rated power 713 W 680 W
Typical summer roof 55 °C 92.8% of rated power 687 W 654 W
Hot roof 70 °C 89.2% of rated power 660 W 629 W
03

Full specification

Parameter 740BHDG 700-715BHDG-705 Difference
Power and efficiency
Rated power 740 Wp 705 Wp +35 W for 740BHDG
Module efficiency 23.80 % 22.70 % +1.10 pp for 740BHDG
Power density 238.2 Wp/m² 227.0 Wp/m² +11.3 Wp/m² for 740BHDG
Open-circuit voltage 50.47 V 49.92 V Effectively the same
Voltage at max power 42.32 V 41.86 V Effectively the same
Short-circuit current 18.56 A 17.91 A 0.65 A apart
Current at max power 17.50 A 16.86 A 0.64 A apart
Temperature
Temperature coefficient -0.240 %/°C -0.240 %/°C Same
Mechanical
Dimensions 2384x1303x33 mm 2384x1303x35 mm 2384x1303x33 mm vs 2384x1303x35 mm
Module area 3.106 m² 3.106 m² Same
Weight 37.5 kg 40.0 kg -2.5 kg for 740BHDG
Weight per kWp 50.7 kg/kWp 56.7 kg/kWp -6.1 kg/kWp for 740BHDG
Warranty and degradation
Product warranty 15 yrs 15 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.30 %/yr 0.40 %/yr -0.10 %/yr for 740BHDG
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
#433 vs #3,307
740BHDG leads by 2,874 places
Power density
#431 vs #3,361
740BHDG leads by 2,930 places
Heat behaviour
#13 vs #13
Tied - the same position in the database
Weight
#4,101 vs #10,834
740BHDG leads by 6,733 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#130 vs #779
740BHDG leads by 649 places
05

More useful comparisons

Open the full database
Same series, other bin
Risen RSM132-8-740BHDG vs Risen RSM132-8-745BHDG
One difference: module efficiency
Same series, other bin
Risen RSM132-8-740BHDG vs Risen RSM132-8-735BHDG
The same specification on paper
Same series, other bin
Risen RSM132-8-700-715BHDG-705 vs Risen RSM132-8-700-715BHDG-715
3 differences, the largest is module efficiency
Same series, other bin
Risen RSM132-8-700-715BHDG-705 vs Risen RSM132-8-700-715BHDG (715W)
4 differences, the largest is annual degradation
Same series, other bin
Risen RSM132-8-700-715BHDG-705 vs Risen RSM132-8-700-715BHDG-710
One difference: module efficiency
Same series, other bin
Risen RSM132-8-700-715BHDG-705 vs Risen RSM132-8-700-715BHDG (710W)
2 differences, the largest is annual degradation
06

Written summary

07

Questions about this pairing

Which panel is better: Risen RSM132-8-740BHDG or Risen RSM132-8-700-715BHDG-705?
According to our database: Risen RSM132-8-740BHDG has higher module efficiency (23.80% vs 22.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Risen RSM132-8-740BHDG and Risen RSM132-8-700-715BHDG-705?
Risen RSM132-8-740BHDG has a module efficiency of 23.80%, while Risen RSM132-8-700-715BHDG-705 is 22.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Risen RSM132-8-740BHDG use vs Risen RSM132-8-700-715BHDG-705?
Risen RSM132-8-740BHDG uses HJT cells; Risen RSM132-8-700-715BHDG-705 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 RSM132-8-740BHDG and Risen RSM132-8-700-715BHDG-705?
Risen RSM132-8-740BHDG has a 30 years power warranty; Risen RSM132-8-700-715BHDG-705 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 RSM132-8-740BHDG and Risen RSM132-8-700-715BHDG-705 bifacial panels?
Both Risen RSM132-8-740BHDG and Risen RSM132-8-700-715BHDG-705 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.