Renew Photovoltaics RPS3MH66BDXXX vs Renew Photovoltaics RPS2MH72BD545
VS
The verdict
RPS3MH66BDXXX leads on the differences that matter
The largest is module efficiency: 2.59 pp more efficient. 6 of 19 comparable parameters are identical.
See all 13 differencesHow alike are they
6
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
13 of 19 parameters
What actually differs
Parameter
RPS3MH66BDXXX
RPS2MH72BD545
Difference
Module efficiency
23.69 %
21.10 %
2.59 pp more efficient
Rated power
640 Wp
545 Wp
95 W more power
Power density
236.9 Wp/m²
211.0 Wp/m²
26.0 Wp/m² higher
Temperature coefficient
-0.290 %/°C
-0.320 %/°C
0.030 %/°C better in heat
Weight per kWp
52.3 kg/kWp
59.6 kg/kWp
7.3 kg/kWp lighter
Short-circuit current
16.27 A
13.94 A
2.33 A apart
Module area
2.701 m²
2.583 m²
0.118 m² apart
Cell technology
TOPCon
PERC
TOPCon vs PERC
Cell count
132
144
12 cells apart
Annual degradation
0.40 %/yr
0.45 %/yr
0.05 %/yr slower
Current at max power
15.36 A
13.37 A
1.99 A apart
Weight
33.5 kg
32.5 kg
1.0 kg lighter
Dimensions
2382x1134x30 mm
2278x1134x30 mm
2382x1134x30 mm vs 2278x1134x30 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
RPS3MH66BDXXX
21,473 kWh
RPS2MH72BD545
17,947 kWh
Lifetime gap
3,526 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
RPS3MH66BDXXX
RPS2MH72BD545
Standard test conditions
25 °C
100.0% of rated power
640 W
545 W
Cool, bright day
40 °C
95.2% of rated power
612 W
519 W
Typical summer roof
55 °C
90.4% of rated power
584 W
493 W
Hot roof
70 °C
85.6% of rated power
556 W
467 W
03
Full specification
Parameter
RPS3MH66BDXXX
RPS2MH72BD545
Difference
Power and efficiency
Rated power
640 Wp
545 Wp
+95 W for RPS3MH66BDXXX
Module efficiency
23.69 %
21.10 %
+2.59 pp for RPS3MH66BDXXX
Power density
236.9 Wp/m²
211.0 Wp/m²
+26.0 Wp/m² for RPS3MH66BDXXX
Open-circuit voltage
49.60 V
49.71 V
Effectively the same
Voltage at max power
41.70 V
40.79 V
Effectively the same
Short-circuit current
16.27 A
13.94 A
2.33 A apart
Current at max power
15.36 A
13.37 A
1.99 A apart
Temperature
Temperature coefficient
-0.290 %/°C
-0.320 %/°C
+0.030 %/°C for RPS3MH66BDXXX
Mechanical
Dimensions
2382x1134x30 mm
2278x1134x30 mm
2382x1134x30 mm vs 2278x1134x30 mm
Module area
2.701 m²
2.583 m²
0.118 m² apart
Weight
33.5 kg
32.5 kg
-1.0 kg for RPS2MH72BD545
Weight per kWp
52.3 kg/kWp
59.6 kg/kWp
-7.3 kg/kWp for RPS3MH66BDXXX
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.40 %/yr
0.45 %/yr
-0.05 %/yr for RPS3MH66BDXXX
Technology
Cell technology
TOPCon
PERC
TOPCon vs PERC
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
132
144
12 cells apart
Bifacial
Yes
Yes
Same
04
14,129 panels
Against the whole database
Efficiency
#612
vs
#9,365
RPS3MH66BDXXX leads by 8,753 places
Power density
#553
vs
#9,380
RPS3MH66BDXXX leads by 8,827 places
Heat behaviour
#2,220
vs
#8,376
RPS3MH66BDXXX leads by 6,156 places
Weight
#5,874
vs
#12,304
RPS3MH66BDXXX leads by 6,430 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#1,555
vs
#7,508
RPS3MH66BDXXX leads by 5,953 places
05
Open the full database
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The same specification on paper
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06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Renew Photovoltaics RPS3MH66BDXXX or Renew Photovoltaics RPS2MH72BD545?
According to our database: Renew Photovoltaics RPS3MH66BDXXX has higher module efficiency (23.69% vs 21.10%); Renew Photovoltaics RPS3MH66BDXXX tolerates heat better (temp coeff -0.290%/°C vs -0.320%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Renew Photovoltaics RPS3MH66BDXXX and Renew Photovoltaics RPS2MH72BD545?
Renew Photovoltaics RPS3MH66BDXXX has a module efficiency of 23.69%, while Renew Photovoltaics RPS2MH72BD545 is 21.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Renew Photovoltaics RPS3MH66BDXXX use vs Renew Photovoltaics RPS2MH72BD545?
Renew Photovoltaics RPS3MH66BDXXX uses TOPCon cells; Renew Photovoltaics RPS2MH72BD545 uses PERC. 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 Renew Photovoltaics RPS3MH66BDXXX and Renew Photovoltaics RPS2MH72BD545?
Renew Photovoltaics RPS3MH66BDXXX has a 30 years power warranty; Renew Photovoltaics RPS2MH72BD545 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 Renew Photovoltaics RPS3MH66BDXXX and Renew Photovoltaics RPS2MH72BD545 bifacial panels?
Both Renew Photovoltaics RPS3MH66BDXXX and Renew Photovoltaics RPS2MH72BD545 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.
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.