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SG325P vs OR10H595MNDB 1 of 18 identical Swap Change panels

Peimar SG325P vs Peimar OR10H595MNDB

Peimar
SG325P
325 Wp 16.74 % PERC Incomplete
VS
Peimar
OR10H595MNDB
595 Wp 23.03 % TOPCon Bifacial Incomplete
The verdict

OR10H595MNDB leads on the differences that matter

The largest is module efficiency: 6.29 pp more efficient. 1 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 17 differences
How alike are they
1 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

17 of 18 parameters
Parameter SG325P OR10H595MNDB Difference
Module efficiency 16.74 % 23.03 % 6.29 pp more efficient
Temperature coefficient -0.430 %/°C -0.290 %/°C 0.140 %/°C better in heat
Rated power 325 Wp 595 Wp 270 W more power
Power density 167.4 Wp/m² 230.3 Wp/m² 62.9 Wp/m² higher
Weight 22.5 kg 30.0 kg 7.5 kg lighter
Weight per kWp 69.2 kg/kWp 50.4 kg/kWp 18.8 kg/kWp lighter
Product warranty 20 yrs 25 yrs 5 yrs longer
Open-circuit voltage 44.60 V 53.12 V 8.52 V apart
Short-circuit current 9.74 A 14.13 A 4.39 A apart
Module area 1.941 m² 2.583 m² 0.642 m² apart
Cell technology PERC TOPCon PERC vs TOPCon
Voltage at max power 36.30 V 44.48 V 8.18 V apart
Current at max power 9.03 A 13.38 A 4.35 A apart
Cell count 72 144 72 cells apart
Bifacial No Yes No vs Yes
Dimensions 1957x992x40 mm 2278x1134x30 mm 1957x992x40 mm vs 2278x1134x30 mm
Cell type Polycrystalline Monocrystalline Polycrystalline vs Monocrystalline
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
SG325P
10,904 kWh
OR10H595MNDB
19,963 kWh
Lifetime gap
9,059 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario SG325P OR10H595MNDB
Standard test conditions 25 °C 100.0% of rated power 325 W 595 W
Cool, bright day 40 °C 93.5% of rated power 304 W 569 W
Typical summer roof 55 °C 87.1% of rated power 283 W 543 W
Hot roof 70 °C 80.7% of rated power 262 W 517 W
03

Full specification

Parameter SG325P OR10H595MNDB Difference
Power and efficiency
Rated power 325 Wp 595 Wp +270 W for OR10H595MNDB
Module efficiency 16.74 % 23.03 % +6.29 pp for OR10H595MNDB
Power density 167.4 Wp/m² 230.3 Wp/m² +62.9 Wp/m² for OR10H595MNDB
Open-circuit voltage 44.60 V 53.12 V 8.52 V apart
Voltage at max power 36.30 V 44.48 V 8.18 V apart
Short-circuit current 9.74 A 14.13 A 4.39 A apart
Current at max power 9.03 A 13.38 A 4.35 A apart
Temperature
Temperature coefficient -0.430 %/°C -0.290 %/°C +0.140 %/°C for OR10H595MNDB
Mechanical
Dimensions 1957x992x40 mm 2278x1134x30 mm 1957x992x40 mm vs 2278x1134x30 mm
Module area 1.941 m² 2.583 m² 0.642 m² apart
Weight 22.5 kg 30.0 kg -7.5 kg for SG325P
Weight per kWp 69.2 kg/kWp 50.4 kg/kWp -18.8 kg/kWp for OR10H595MNDB
Warranty and degradation
Product warranty 20 yrs 25 yrs +5 yrs for OR10H595MNDB
Performance warranty 30 yrs 30 yrs Same
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology PERC TOPCon PERC vs TOPCon
Cell type Polycrystalline Monocrystalline Polycrystalline vs Monocrystalline
Cell count 72 144 72 cells apart
Bifacial No Yes No vs Yes
04

Against the whole database

14,005 panels
Efficiency
#13,521 vs #1,744
OR10H595MNDB leads by 11,777 places
Power density
#13,515 vs #1,758
OR10H595MNDB leads by 11,757 places
Heat behaviour
#13,847 vs #2,165
OR10H595MNDB leads by 11,682 places
Weight
#13,370 vs #3,800
OR10H595MNDB leads by 9,570 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#13,109 vs #1,378
OR10H595MNDB leads by 11,731 places
05

More useful comparisons

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

Written summary

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07

Questions about this pairing

Which panel is better: Peimar SG325P or Peimar OR10H595MNDB?
According to our database: Peimar OR10H595MNDB has higher module efficiency (23.03% vs 16.74%); Peimar OR10H595MNDB 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 SG325P and Peimar OR10H595MNDB?
Peimar SG325P has a module efficiency of 16.74%, while Peimar OR10H595MNDB is 23.03%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Peimar SG325P use vs Peimar OR10H595MNDB?
Peimar SG325P uses PERC cells; Peimar OR10H595MNDB 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 Peimar SG325P and Peimar OR10H595MNDB?
Peimar SG325P has a 30 years power warranty; Peimar OR10H595MNDB 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 SG325P and Peimar OR10H595MNDB bifacial panels?
Peimar OR10H595MNDB 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.

Shop prices: See 13 Peimar 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.