Renesola RS9-700NBG-E1 vs Renesola RS9-700NG-E1
VS
The verdict
700NG-E1 leads on the differences that matter
The largest is weight: 5.2 kg lighter. 15 of 19 comparable parameters are identical.
See all 4 differencesHow alike are they
15
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
4 of 19 parameters
What actually differs
Parameter
700NBG-E1
700NG-E1
Difference
Weight
38.7 kg
33.5 kg
5.2 kg lighter
Weight per kWp
55.3 kg/kWp
47.9 kg/kWp
7.4 kg/kWp lighter
Voltage at max power
40.50 V
38.97 V
1.53 V apart
Current at max power
17.29 A
17.96 A
0.67 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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
700NBG-E1
23,486 kWh
700NG-E1
23,486 kWh
Lifetime gap
No difference
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
700NBG-E1
700NG-E1
Standard test conditions
25 °C
100.0% of rated power
700 W
700 W
Cool, bright day
40 °C
95.7% of rated power
670 W
670 W
Typical summer roof
55 °C
91.3% of rated power
639 W
639 W
Hot roof
70 °C
87.0% of rated power
609 W
609 W
03
Full specification
Parameter
700NBG-E1
700NG-E1
Difference
Power and efficiency
Rated power
700 Wp
700 Wp
Same
Module efficiency
22.53 %
22.53 %
Same
Power density
225.3 Wp/m²
225.3 Wp/m²
Same
Open-circuit voltage
48.60 V
47.63 V
Effectively the same
Voltage at max power
40.50 V
38.97 V
1.53 V apart
Short-circuit current
18.32 A
18.77 A
Effectively the same
Current at max power
17.29 A
17.96 A
0.67 A apart
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
38.7 kg
33.5 kg
-5.2 kg for 700NG-E1
Weight per kWp
55.3 kg/kWp
47.9 kg/kWp
-7.4 kg/kWp for 700NG-E1
Warranty and degradation
Product warranty
15 yrs
15 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.40 %/yr
Same
Technology
Cell technology
N-type
N-type
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
132
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#3,982
vs
#3,982
Tied - the same position in the database
Power density
#3,989
vs
#3,989
Tied - the same position in the database
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#9,733
vs
#1,936
700NG-E1 leads by 7,797 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#928
vs
#877
700NG-E1 leads by 51 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: Renesola RS9-700NBG-E1 or Renesola RS9-700NG-E1?
According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Renesola RS9-700NBG-E1 and Renesola RS9-700NG-E1?
Renesola RS9-700NBG-E1 has a module efficiency of 22.53%, while Renesola RS9-700NG-E1 is 22.53%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Renesola RS9-700NBG-E1 use vs Renesola RS9-700NG-E1?
Renesola RS9-700NBG-E1 uses N-type cells; Renesola RS9-700NG-E1 uses N-type. 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 Renesola RS9-700NBG-E1 and Renesola RS9-700NG-E1?
Renesola RS9-700NBG-E1 has a 30 years power warranty; Renesola RS9-700NG-E1 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 Renesola RS9-700NBG-E1 and Renesola RS9-700NG-E1 bifacial panels?
Both Renesola RS9-700NBG-E1 and Renesola RS9-700NG-E1 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 1 Renesola offer
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.