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OR10H450MNDB (FB) vs SG325P 3 of 18 identical Swap Change panels

Peimar OR10H450MNDB (FB) vs Peimar SG325P

Peimar
OR10H450MNDB (FB)
450 Wp 23.04 % TOPCon Bifacial Incomplete
Open panel page Datasheet PDF
VS
Peimar
SG325P
325 Wp 16.74 % PERC Incomplete
Open panel page Datasheet PDF
The verdict

OR10H450MNDB (FB) leads on the differences that matter

The largest is module efficiency: 6.30 pp more efficient. 3 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 15 differences
How alike are they
3 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

15 of 18 parameters
Parameter OR10H450MNDB (FB) SG325P Difference
Module efficiency 23.04 % 16.74 % 6.30 pp more efficient
Temperature coefficient -0.290 %/°C -0.430 %/°C 0.140 %/°C better in heat
Rated power 450 Wp 325 Wp 125 W more power
Power density 230.4 Wp/m² 167.4 Wp/m² 63.0 Wp/m² higher
Weight per kWp 51.6 kg/kWp 69.2 kg/kWp 17.6 kg/kWp lighter
Product warranty 25 yrs 20 yrs 5 yrs longer
Open-circuit voltage 38.99 V 44.60 V 5.61 V apart
Short-circuit current 14.25 A 9.74 A 4.51 A apart
Cell technology TOPCon PERC TOPCon vs PERC
Current at max power 13.53 A 9.03 A 4.50 A apart
Cell count 108 72 36 cells apart
Voltage at max power 33.25 V 36.30 V 3.05 V apart
Bifacial Yes No Yes vs No
Dimensions 1722x1134x30 mm 1957x992x40 mm 1722x1134x30 mm vs 1957x992x40 mm
Cell type Monocrystalline Polycrystalline Monocrystalline vs Polycrystalline
02

What it means on a roof

Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
OR10H450MNDB (FB)
15,098 kWh
SG325P
10,904 kWh
Lifetime gap
4,194 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario OR10H450MNDB (FB) SG325P
Standard test conditions 25 °C 100.0% of rated power 450 W 325 W
Cool, bright day 40 °C 93.5% of rated power 430 W 304 W
Typical summer roof 55 °C 87.1% of rated power 411 W 283 W
Hot roof 70 °C 80.7% of rated power 391 W 262 W
03

Full specification

Parameter OR10H450MNDB (FB) SG325P Difference
Power and efficiency
Rated power 450 Wp 325 Wp +125 W for OR10H450MNDB (FB)
Module efficiency 23.04 % 16.74 % +6.30 pp for OR10H450MNDB (FB)
Power density 230.4 Wp/m² 167.4 Wp/m² +63.0 Wp/m² for OR10H450MNDB (FB)
Open-circuit voltage 38.99 V 44.60 V 5.61 V apart
Voltage at max power 33.25 V 36.30 V 3.05 V apart
Short-circuit current 14.25 A 9.74 A 4.51 A apart
Current at max power 13.53 A 9.03 A 4.50 A apart
Temperature
Temperature coefficient -0.290 %/°C -0.430 %/°C +0.140 %/°C for OR10H450MNDB (FB)
Mechanical
Dimensions 1722x1134x30 mm 1957x992x40 mm 1722x1134x30 mm vs 1957x992x40 mm
Module area 1.953 m² 1.941 m² Effectively the same
Weight 23.2 kg 22.5 kg Effectively the same
Weight per kWp 51.6 kg/kWp 69.2 kg/kWp -17.6 kg/kWp for OR10H450MNDB (FB)
Warranty and degradation
Product warranty 25 yrs 20 yrs +5 yrs for OR10H450MNDB (FB)
Performance warranty 30 yrs 30 yrs Same
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology TOPCon PERC TOPCon vs PERC
Cell type Monocrystalline Polycrystalline Monocrystalline vs Polycrystalline
Cell count 108 72 36 cells apart
Bifacial Yes No Yes vs No
04

Against the whole database

14,005 panels
Efficiency
#1,711 vs #13,521
OR10H450MNDB (FB) leads by 11,810 places
Power density
#1,708 vs #13,515
OR10H450MNDB (FB) leads by 11,807 places
Heat behaviour
#2,165 vs #13,847
OR10H450MNDB (FB) leads by 11,682 places
Weight
#5,005 vs #13,370
OR10H450MNDB (FB) leads by 8,365 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#5,539 vs #13,109
OR10H450MNDB (FB) leads by 7,570 places
05

More useful comparisons

Open the full database
Same series, other bin
Peimar
Peimar OR10H450MNDB (FB) vs Peimar OR10H595MNDB
7 differences, the largest is rated power
Same series, other bin
Peimar
Peimar SG325P vs Peimar SG330P
One difference: module efficiency
Same manufacturer
Peimar
Peimar OR10H450MNDB (FB) vs Peimar SA500M (FB)
12 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Peimar OR10H450MNDB (FB) or Peimar SG325P?
According to our database: Peimar OR10H450MNDB (FB) has higher module efficiency (23.04% vs 16.74%); Peimar OR10H450MNDB (FB) tolerates heat better (temp coeff -0.290%/°C vs -0.430%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Peimar OR10H450MNDB (FB) and Peimar SG325P?
Peimar OR10H450MNDB (FB) has a module efficiency of 23.04%, while Peimar SG325P is 16.74%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Peimar OR10H450MNDB (FB) use vs Peimar SG325P?
Peimar OR10H450MNDB (FB) uses TOPCon cells; Peimar SG325P 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 Peimar OR10H450MNDB (FB) and Peimar SG325P?
Peimar OR10H450MNDB (FB) has a 30 years power warranty; Peimar SG325P 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 Peimar OR10H450MNDB (FB) and Peimar SG325P bifacial panels?
Peimar OR10H450MNDB (FB) is bifacial (captures light from both faces); Peimar SG325P 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.