Suntech STP615S-H66-Nsh+ vs Suntech STP710S-D66-Nsh+
VS
The verdict
STP615S-H66-Nsh+ leads on the differences that matter
The largest is rated power: 95 W more power. 11 of 19 comparable parameters are identical.
See all 8 differencesHow alike are they
11
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
8 of 19 parameters
What actually differs
Parameter
STP615S-H66-Nsh+
STP710S-D66-Nsh+
Difference
Rated power
615 Wp
710 Wp
95 W more power
Weight
33.1 kg
38.5 kg
5.4 kg lighter
Product warranty
15 yrs
12 yrs
3 yrs longer
Short-circuit current
15.92 A
18.48 A
2.56 A apart
Module area
2.701 m²
3.106 m²
0.405 m² apart
Temperature coefficient
-0.280 %/°C
-0.290 %/°C
0.010 %/°C better in heat
Current at max power
15.12 A
17.54 A
2.42 A apart
Dimensions
2382x1134x30 mm
2384x1303x33 mm
2382x1134x30 mm vs 2384x1303x33 mm
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
STP615S-H66-Nsh+
20,634 kWh
STP710S-D66-Nsh+
23,822 kWh
Lifetime gap
3,188 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
STP615S-H66-Nsh+
STP710S-D66-Nsh+
Standard test conditions
25 °C
100.0% of rated power
615 W
710 W
Cool, bright day
40 °C
95.7% of rated power
589 W
679 W
Typical summer roof
55 °C
91.3% of rated power
563 W
648 W
Hot roof
70 °C
87.0% of rated power
538 W
617 W
03
Full specification
Parameter
STP615S-H66-Nsh+
STP710S-D66-Nsh+
Difference
Power and efficiency
Rated power
615 Wp
710 Wp
+95 W for STP710S-D66-Nsh+
Module efficiency
22.80 %
22.86 %
Effectively the same
Power density
227.7 Wp/m²
228.6 Wp/m²
Effectively the same
Open-circuit voltage
48.70 V
48.77 V
Effectively the same
Voltage at max power
40.70 V
40.48 V
Effectively the same
Short-circuit current
15.92 A
18.48 A
2.56 A apart
Current at max power
15.12 A
17.54 A
2.42 A apart
Temperature
Temperature coefficient
-0.280 %/°C
-0.290 %/°C
+0.010 %/°C for STP615S-H66-Nsh+
Mechanical
Dimensions
2382x1134x30 mm
2384x1303x33 mm
2382x1134x30 mm vs 2384x1303x33 mm
Module area
2.701 m²
3.106 m²
0.405 m² apart
Weight
33.1 kg
38.5 kg
-5.4 kg for STP615S-H66-Nsh+
Weight per kWp
53.8 kg/kWp
54.2 kg/kWp
Effectively the same
Warranty and degradation
Product warranty
15 yrs
12 yrs
+3 yrs for STP615S-H66-Nsh+
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
#2,714
vs
#2,536
STP710S-D66-Nsh+ leads by 178 places
Power density
#3,077
vs
#2,474
STP710S-D66-Nsh+ leads by 603 places
Heat behaviour
#1,309
vs
#2,165
STP615S-H66-Nsh+ leads by 856 places
Weight
#7,888
vs
#8,457
STP615S-H66-Nsh+ leads by 569 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#2,350
vs
#869
STP710S-D66-Nsh+ leads by 1,481 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 STP615S-H66-Nsh+ or Suntech STP710S-D66-Nsh+?
According to our database: Suntech STP710S-D66-Nsh+ has higher module efficiency (22.86% vs 22.80%); Suntech STP615S-H66-Nsh+ tolerates heat better (temp coeff -0.280%/°C vs -0.290%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Suntech STP615S-H66-Nsh+ and Suntech STP710S-D66-Nsh+?
Suntech STP615S-H66-Nsh+ has a module efficiency of 22.80%, while Suntech STP710S-D66-Nsh+ is 22.86%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Suntech STP615S-H66-Nsh+ use vs Suntech STP710S-D66-Nsh+?
Suntech STP615S-H66-Nsh+ uses TOPCon cells; Suntech STP710S-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 STP615S-H66-Nsh+ and Suntech STP710S-D66-Nsh+?
Suntech STP615S-H66-Nsh+ has a 30 years power warranty; Suntech STP710S-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 STP615S-H66-Nsh+ and Suntech STP710S-D66-Nsh+ bifacial panels?
Both Suntech STP615S-H66-Nsh+ and Suntech STP710S-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 31 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.