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RS9-705NG-E1 vs YH180W-19.5M 2 of 18 identical Swap Change panels

Renesola RS9-705NG-E1 vs Renesola YH180W-19.5M

Renesola
RS9-705NG-E1
705 Wp 22.70 % N-type Bifacial
Open panel page Datasheet PDF
VS
Renesola
YH180W-19.5M
180 Wp 18.15 % TOPCon Incomplete
Open panel page Datasheet PDF
The verdict

RS9-705NG-E1 leads on the differences that matter

The largest is module efficiency: 4.55 pp more efficient. 2 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 16 differences
How alike are they
2 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

16 of 18 parameters
Parameter RS9-705NG-E1 YH180W-19.5M Difference
Module efficiency 22.70 % 18.15 % 4.55 pp more efficient
Temperature coefficient -0.290 %/°C -0.340 %/°C 0.050 %/°C better in heat
Rated power 705 Wp 180 Wp 525 W more power
Power density 227.0 Wp/m² 181.5 Wp/m² 45.5 Wp/m² higher
Weight 33.5 kg 10.5 kg 23.0 kg lighter
Weight per kWp 47.5 kg/kWp 58.3 kg/kWp 10.8 kg/kWp lighter
Product warranty 15 yrs 30 yrs 15 yrs longer
Open-circuit voltage 47.83 V 24.37 V 23.46 V apart
Short-circuit current 18.82 A 8.72 A 10.10 A apart
Module area 3.106 m² 0.992 m² 2.114 m² apart
Cell technology N-type TOPCon N-type vs TOPCon
Voltage at max power 39.17 V 21.79 V 17.38 V apart
Current at max power 18.00 A 8.27 A 9.73 A apart
Cell count 132 39 93 cells apart
Bifacial Yes No Yes vs No
Dimensions 2384x1303x33 mm 1485x668x30 mm 2384x1303x33 mm vs 1485x668x30 mm
02

What it means on a roof

Thirty years of production
Declared first-year losses, with 0.40% a year afterwards assumed for both panels, at 1,200 kWh/kWp a year
RS9-705NG-E1
23,654 kWh
YH180W-19.5M
6,039 kWh
Lifetime gap
17,615 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario RS9-705NG-E1 YH180W-19.5M
Standard test conditions 25 °C 100.0% of rated power 705 W 180 W
Cool, bright day 40 °C 94.9% of rated power 674 W 171 W
Typical summer roof 55 °C 89.8% of rated power 644 W 162 W
Hot roof 70 °C 84.7% of rated power 613 W 152 W
03

Full specification

Parameter RS9-705NG-E1 YH180W-19.5M Difference
Power and efficiency
Rated power 705 Wp 180 Wp +525 W for RS9-705NG-E1
Module efficiency 22.70 % 18.15 % +4.55 pp for RS9-705NG-E1
Power density 227.0 Wp/m² 181.5 Wp/m² +45.5 Wp/m² for RS9-705NG-E1
Open-circuit voltage 47.83 V 24.37 V 23.46 V apart
Voltage at max power 39.17 V 21.79 V 17.38 V apart
Short-circuit current 18.82 A 8.72 A 10.10 A apart
Current at max power 18.00 A 8.27 A 9.73 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.340 %/°C +0.050 %/°C for RS9-705NG-E1
Mechanical
Dimensions 2384x1303x33 mm 1485x668x30 mm 2384x1303x33 mm vs 1485x668x30 mm
Module area 3.106 m² 0.992 m² 2.114 m² apart
Weight 33.5 kg 10.5 kg -23.0 kg for YH180W-19.5M
Weight per kWp 47.5 kg/kWp 58.3 kg/kWp -10.8 kg/kWp for RS9-705NG-E1
Warranty and degradation
Product warranty 15 yrs 30 yrs +15 yrs for YH180W-19.5M
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr - Not published by Renesola
Technology
Cell technology N-type TOPCon N-type vs TOPCon
Cell type Monocrystalline Monocrystalline Same
Cell count 132 39 93 cells apart
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#3,307 vs #13,197
RS9-705NG-E1 leads by 9,890 places
Power density
#3,361 vs #13,175
RS9-705NG-E1 leads by 9,814 places
Heat behaviour
#2,165 vs #8,778
RS9-705NG-E1 leads by 6,613 places
Weight
#1,740 vs #11,670
RS9-705NG-E1 leads by 9,930 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#670 vs #13,158
RS9-705NG-E1 leads by 12,488 places
05

More useful comparisons

Open the full database
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06

Written summary

07

Questions about this pairing

Which panel is better: Renesola RS9-705NG-E1 or Renesola YH180W-19.5M?
According to our database: Renesola RS9-705NG-E1 has higher module efficiency (22.70% vs 18.15%); Renesola RS9-705NG-E1 tolerates heat better (temp coeff -0.290%/°C vs -0.340%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Renesola RS9-705NG-E1 and Renesola YH180W-19.5M?
Renesola RS9-705NG-E1 has a module efficiency of 22.70%, while Renesola YH180 W-19.5M is 18.15%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Renesola RS9-705NG-E1 use vs Renesola YH180W-19.5M?
Renesola RS9-705NG-E1 uses N-type cells; Renesola YH180 W-19.5M 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 Renesola RS9-705NG-E1 and Renesola YH180W-19.5M?
Renesola RS9-705NG-E1 has a 30 years power warranty; Renesola YH180 W-19.5M 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 RS9-705NG-E1 and Renesola YH180W-19.5M bifacial panels?
Renesola RS9-705NG-E1 is bifacial (captures light from both faces); Renesola YH180 W-19.5M is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.

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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.