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REC Alpha Pure-RX 470 Wp vs REC475AA Pure-RX 13 of 18 identical Swap Change panels

REC REC Alpha Pure-RX 470 Wp vs REC REC475AA Pure-RX

REC REC Alpha Pure-RX 470 Wp
REC
REC Alpha Pure-RX 470 Wp
470 Wp 22.60 % HJT
Open panel page Datasheet PDF
VS
REC REC475AA Pure-RX
REC
REC475AA Pure-RX
475 Wp 22.80 % HJT Bifacial
Open panel page Datasheet PDF
The verdict

5 differences, and they point both ways

The largest is product warranty: 5 yrs longer. 13 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 5 differences
How alike are they
13 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

5 of 18 parameters
Parameter REC Alpha Pure-RX 470 Wp REC475AA Pure-RX Difference
Product warranty 25 yrs 20 yrs 5 yrs longer
Annual degradation 0.33 %/yr 0.25 %/yr 0.08 %/yr slower
Module efficiency 22.60 % 22.80 % 0.20 pp more efficient
Bifacial No Yes No vs Yes
Dimensions 1727x1204x31 mm 1728x1205x30 mm 1727x1204x31 mm vs 1728x1205x30 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
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.
REC Alpha Pure-RX 470 Wp
16,108 kWh
REC475AA Pure-RX
16,138 kWh
Lifetime gap
30 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario REC Alpha Pure-RX 470 Wp REC475AA Pure-RX
Standard test conditions 25 °C 100.0% of rated power 470 W 475 W
Cool, bright day 40 °C 96.4% of rated power 453 W 458 W
Typical summer roof 55 °C 92.8% of rated power 436 W 441 W
Hot roof 70 °C 89.2% of rated power 419 W 424 W
03

Full specification

Parameter REC Alpha Pure-RX 470 Wp REC475AA Pure-RX Difference
Power and efficiency
Rated power 470 Wp 475 Wp Effectively the same
Module efficiency 22.60 % 22.80 % +0.20 pp for REC475AA Pure-RX
Power density 226.0 Wp/m² 228.1 Wp/m² Effectively the same
Open-circuit voltage 65.70 V 65.70 V Same
Voltage at max power 55.40 V 55.50 V Effectively the same
Short-circuit current 8.95 A 9.00 A Effectively the same
Current at max power 8.49 A 8.56 A Effectively the same
Temperature
Temperature coefficient -0.240 %/°C -0.240 %/°C Same
Mechanical
Dimensions 1727x1204x31 mm 1728x1205x30 mm 1727x1204x31 mm vs 1728x1205x30 mm
Module area 2.079 m² 2.082 m² Effectively the same
Weight 23.4 kg 22.7 kg Effectively the same
Weight per kWp 49.8 kg/kWp 47.8 kg/kWp Effectively the same
Warranty and degradation
Product warranty 25 yrs 20 yrs +5 yrs for REC Alpha Pure-RX 470 Wp
Performance warranty 25 yrs 25 yrs Same
Annual degradation 0.33 %/yr 0.25 %/yr -0.08 %/yr for REC475AA Pure-RX
Technology
Cell technology HJT HJT Same
Cell type Monocrystalline Monocrystalline Same
Cell count - 88 Not published by REC
Bifacial No Yes No vs Yes
04

Against the whole database

14,005 panels
Efficiency
#3,658 vs #2,714
REC475AA Pure-RX leads by 944 places
Power density
#3,709 vs #2,760
REC475AA Pure-RX leads by 949 places
Heat behaviour
#13 vs #13
Tied - the same position in the database
Weight
#3,227 vs #1,913
REC475AA Pure-RX leads by 1,314 places
Warranty
#9,798 vs #9,798
Tied - the same position in the database
Overall
#6,413 vs #7,034
REC Alpha Pure-RX 470 Wp leads by 621 places
05

More useful comparisons

Open the full database
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REC REC Alpha Pure-RX 470 Wp vs REC REC470AA Pure-RX
4 differences, the largest is product warranty
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REC REC Alpha Pure-RX 470 Wp vs REC REC Alpha Pure-RX 470
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REC REC Alpha Pure-RX 470 Wp vs REC REC465AA Pure-RX
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REC REC Alpha Pure-RX 470 Wp vs REC REC460AA Pure-RX
7 differences, the largest is module efficiency
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REC REC Alpha Pure-RX 470 Wp vs REC REC455AA Pure-RX
7 differences, the largest is module efficiency
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REC REC Alpha Pure-RX 470 Wp vs REC REC450AA Pure-RX
8 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: REC REC Alpha Pure-RX 470 Wp or REC REC475AA Pure-RX?
According to our database: REC REC475AA Pure-RX has higher module efficiency (22.80% vs 22.60%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of REC REC Alpha Pure-RX 470 Wp and REC REC475AA Pure-RX?
REC REC Alpha Pure-RX 470 Wp has a module efficiency of 22.60%, while REC REC475AA Pure-RX is 22.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does REC REC Alpha Pure-RX 470 Wp use vs REC REC475AA Pure-RX?
REC REC Alpha Pure-RX 470 Wp uses HJT cells; REC REC475AA Pure-RX 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 REC Alpha Pure-RX 470 Wp and REC REC475AA Pure-RX?
REC REC Alpha Pure-RX 470 Wp has a 25 years power warranty; REC REC475AA Pure-RX has a 25 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 REC Alpha Pure-RX 470 Wp and REC REC475AA Pure-RX bifacial panels?
REC REC475AA Pure-RX is bifacial (captures light from both faces); REC REC Alpha Pure-RX 470 Wp 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.