REC REC630AA PRO M vs REC REC590AA Pro MG
VS
The verdict
REC630AA PRO M leads on the differences that matter
The largest is module efficiency: 1.40 pp more efficient. 9 of 19 comparable parameters are identical.
See all 10 differencesHow alike are they
9
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
10 of 19 parameters
What actually differs
Parameter
REC630AA PRO M
REC590AA Pro MG
Difference
Module efficiency
22.20 %
20.80 %
1.40 pp more efficient
Rated power
630 Wp
590 Wp
40 W more power
Power density
222.0 Wp/m²
207.9 Wp/m²
14.1 Wp/m² higher
Performance warranty
25 yrs
30 yrs
5 yrs longer
Weight
32.5 kg
36.8 kg
4.3 kg lighter
Weight per kWp
51.6 kg/kWp
62.4 kg/kWp
10.8 kg/kWp lighter
Product warranty
20 yrs
30 yrs
10 yrs longer
Short-circuit current
17.86 A
17.34 A
0.52 A apart
Current at max power
17.12 A
16.50 A
0.62 A apart
Voltage at max power
36.80 V
35.80 V
1.00 V apart
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
Same temp coeff. for both panels (-0.240 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
REC630AA PRO M
21,404 kWh
REC590AA Pro MG
20,045 kWh
Lifetime gap
1,359 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
REC630AA PRO M
REC590AA Pro MG
Standard test conditions
25 °C
100.0% of rated power
630 W
590 W
Cool, bright day
40 °C
96.4% of rated power
607 W
569 W
Typical summer roof
55 °C
92.8% of rated power
585 W
548 W
Hot roof
70 °C
89.2% of rated power
562 W
526 W
03
Full specification
Parameter
REC630AA PRO M
REC590AA Pro MG
Difference
Power and efficiency
Rated power
630 Wp
590 Wp
+40 W for REC630AA PRO M
Module efficiency
22.20 %
20.80 %
+1.40 pp for REC630AA PRO M
Power density
222.0 Wp/m²
207.9 Wp/m²
+14.1 Wp/m² for REC630AA PRO M
Open-circuit voltage
44.50 V
44.10 V
Effectively the same
Voltage at max power
36.80 V
35.80 V
1.00 V apart
Short-circuit current
17.86 A
17.34 A
0.52 A apart
Current at max power
17.12 A
16.50 A
0.62 A apart
Temperature
Temperature coefficient
-0.240 %/°C
-0.240 %/°C
Same
Mechanical
Dimensions
2175x1305x30 mm
2175x1305x30 mm
Same
Module area
2.838 m²
2.838 m²
Same
Weight
32.5 kg
36.8 kg
-4.3 kg for REC630AA PRO M
Weight per kWp
51.6 kg/kWp
62.4 kg/kWp
-10.8 kg/kWp for REC630AA PRO M
Warranty and degradation
Product warranty
20 yrs
30 yrs
+10 yrs for REC590AA Pro MG
Performance warranty
25 yrs
30 yrs
+5 yrs for REC590AA Pro MG
Annual degradation
0.25 %/yr
0.25 %/yr
Same
Technology
Cell technology
HJT
HJT
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
120
120
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#5,817
vs
#10,457
REC630AA PRO M leads by 4,640 places
Power density
#5,856
vs
#10,516
REC630AA PRO M leads by 4,660 places
Heat behaviour
#13
vs
#13
Tied - the same position in the database
Weight
#4,960
vs
#12,764
REC630AA PRO M leads by 7,804 places
Warranty
#9,798
vs
#21
REC590AA Pro MG leads by 9,777 places
Overall
#2,470
vs
#2,507
REC630AA PRO M leads by 37 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: REC REC630AA PRO M or REC REC590AA Pro MG?
According to our database: REC REC630AA PRO M has higher module efficiency (22.20% vs 20.80%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of REC REC630AA PRO M and REC REC590AA Pro MG?
REC REC630AA PRO M has a module efficiency of 22.20%, while REC REC590AA Pro MG is 20.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does REC REC630AA PRO M use vs REC REC590AA Pro MG?
REC REC630AA PRO M uses HJT cells; REC REC590AA Pro MG uses HJT. 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 REC REC630AA PRO M and REC REC590AA Pro MG?
REC REC630AA PRO M has a 25 years power warranty; REC REC590AA Pro MG 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 REC REC630AA PRO M and REC REC590AA Pro MG bifacial panels?
Both REC REC630AA PRO M and REC REC590AA Pro MG 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.
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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.