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SG8.0RT-P2 vs SG8.0RT-20 15 of 20 identical Swap Change inverters

Sungrow SG8.0RT-P2 vs Sungrow SG8.0RT-20

Sungrow SG8.0RT-P2
Sungrow
SG8.0RT-P2
8 kW 97.7 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Sungrow SG8.0RT-20
Sungrow
SG8.0RT-20
8 kW 98.0 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

5 differences, and they point both ways

The largest is max input current per tracker: 7.0 A more headroom. 15 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 5 differences
How alike are they
15 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

5 of 20 parameters
Parameter SG8.0RT-P2 SG8.0RT-20 Difference
Max input current per tracker 32.0 A 25.0 A 7.0 A more headroom
European efficiency 97.7 % 98.0 % 0.3 pp more efficient
Weight 18.0 kg 17.0 kg 1.0 kg lighter
Max efficiency 98.3 % 98.5 % 0.2 pp more efficient
Cooling natural forced-air natural vs forced-air
02

Full specification

Parameter SG8.0RT-P2 SG8.0RT-20 Difference
AC output
Rated AC power 8.00 kW 8.00 kW Same
Max AC power 8.00 kW 8.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 400 V 400 V Same
Max AC current 13.3 A 13.3 A Same
PV input
Max PV power 12.00 kW - Not published by Sungrow
DC/AC ratio 1.50 - Not published by Sungrow
Max DC voltage 1100 V 1100 V Same
MPPT voltage range 160-1000 V 160-1000 V Same
Start voltage 180 V 180 V Same
MPP trackers 2 2 Same
Strings per tracker 1 1 Same
Max input current per tracker 32.0 A 25.0 A +7.0 A for SG8.0RT-P2
Efficiency
European efficiency 97.7 % 98.0 % +0.3 pp for SG8.0RT-20
Max efficiency 98.3 % 98.5 % +0.2 pp for SG8.0RT-20
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input - - Neither datasheet publishes this
Battery voltage - - Neither datasheet publishes this
Max charge current - - Neither datasheet publishes this
Backup power - - Neither datasheet publishes this
Physical
Weight 18.0 kg 17.0 kg -1.0 kg for SG8.0RT-20
Weight per kW 2.2 kg/kW 2.1 kg/kW Effectively the same
Dimensions 480x370x195 mm 480x370x195 mm Same
Ingress protection IP65 IP65 Same
Cooling natural forced-air natural vs forced-air
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes - Not published by Sungrow
Ethernet Yes - Not published by Sungrow
Arc fault protection Yes - Not published by Sungrow
Integrated DC switch Yes Yes Same
Warranty
Warranty - - Neither datasheet publishes this
03

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Sungrow SG8.0RT-P2 vs Growatt MOD 8KTL3-X2(Pro)
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Sungrow SG8.0RT-P2 vs GoodWe GW8000-DT
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Sungrow SG8.0RT-20 vs Ginlong Solis S6-GR3P-8K02-NV-ND
8 differences, the largest is max input current per tracker
04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.