Suntech STP710S-D66-Nsh+ vs Suntech STP705S-D66-Nsh+
VS
The verdict
Identical on every published parameter
All 19 comparable parameters agree. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from.
How alike are they
19
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
0 of 19 parameters
What actually differs
Every comparable parameter agrees. The full specification is below.
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.
STP710S-D66-Nsh+
23,822 kWh
STP705S-D66-Nsh+
23,654 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
STP710S-D66-Nsh+
STP705S-D66-Nsh+
Standard test conditions
25 °C
100.0% of rated power
710 W
705 W
Cool, bright day
40 °C
95.7% of rated power
679 W
674 W
Typical summer roof
55 °C
91.3% of rated power
648 W
644 W
Hot roof
70 °C
87.0% of rated power
617 W
613 W
03
Full specification
Parameter
STP710S-D66-Nsh+
STP705S-D66-Nsh+
Difference
Power and efficiency
Rated power
710 Wp
705 Wp
Effectively the same
Module efficiency
22.86 %
22.70 %
Effectively the same
Power density
228.6 Wp/m²
227.0 Wp/m²
Effectively the same
Open-circuit voltage
48.77 V
48.57 V
Effectively the same
Voltage at max power
40.48 V
40.31 V
Effectively the same
Short-circuit current
18.48 A
18.43 A
Effectively the same
Current at max power
17.54 A
17.49 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
38.5 kg
38.5 kg
Same
Weight per kWp
54.2 kg/kWp
54.6 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
#2,536
vs
#3,307
STP710S-D66-Nsh+ leads by 771 places
Power density
#2,474
vs
#3,361
STP710S-D66-Nsh+ leads by 887 places
Heat behaviour
#2,165
vs
#2,165
Tied - the same position in the database
Weight
#8,457
vs
#8,959
STP710S-D66-Nsh+ leads by 502 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#869
vs
#1,037
STP710S-D66-Nsh+ leads by 168 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: Suntech STP710S-D66-Nsh+ or Suntech STP705S-D66-Nsh+?
According to our database: Suntech STP710S-D66-Nsh+ has higher module efficiency (22.86% vs 22.70%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Suntech STP710S-D66-Nsh+ and Suntech STP705S-D66-Nsh+?
Suntech STP710S-D66-Nsh+ has a module efficiency of 22.86%, while Suntech STP705S-D66-Nsh+ is 22.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Suntech STP710S-D66-Nsh+ use vs Suntech STP705S-D66-Nsh+?
Suntech STP710S-D66-Nsh+ uses TOPCon cells; Suntech STP705S-D66-Nsh+ 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 Suntech STP710S-D66-Nsh+ and Suntech STP705S-D66-Nsh+?
Suntech STP710S-D66-Nsh+ has a 30 years power warranty; Suntech STP705S-D66-Nsh+ 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 Suntech STP710S-D66-Nsh+ and Suntech STP705S-D66-Nsh+ bifacial panels?
Both Suntech STP710S-D66-Nsh+ and Suntech STP705S-D66-Nsh+ 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 22 Suntech 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.