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STP8.0-3AV-40 vs MOD 8KTL3-X2(Pro) 9 of 24 identical Swap Change inverters

SMA Solar STP8.0-3AV-40 vs Growatt MOD 8KTL3-X2(Pro)

SMA Solar STP8.0-3AV-40
SMA Solar
STP8.0-3AV-40
8 kW 97.7 % euro Grid-tie
Open inverter page Datasheet PDF
VS
Growatt MOD 8KTL3-X2(Pro)
Growatt
MOD 8KTL3-X2(Pro)
8 kW 98.1 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

MOD 8KTL3-X2(Pro) leads on the differences that matter

The largest is max dc voltage: 100 V apart. 9 of 24 comparable parameters are identical, with 8 more left out because at least one datasheet does not publish them.

See all 15 differences
How alike are they
9 of 24 comparable
parameters are identical
identical differs not published
01

What actually differs

15 of 24 parameters
Parameter STP8.0-3AV-40 MOD 8KTL3-X2(Pro) Difference
Max DC voltage 1000 V 1100 V 100 V apart
Warranty 5 yrs 8 yrs 3 yrs longer
European efficiency 97.7 % 98.1 % 0.4 pp more efficient
Max PV power 15.00 kW 12.00 kW 3.00 kW apart
DC/AC ratio 1.88 1.50 0.38 more oversizing headroom
Weight 20.5 kg 14.6 kg 5.9 kg lighter
Weight per kW 2.6 kg/kW 1.8 kg/kW 0.7 kg/kW lighter
Max efficiency 98.3 % 98.6 % 0.3 pp more efficient
Nominal AC voltage 230 V 400 V 170 V apart
Ingress protection IP65 IP66 IP65 vs IP66
Max AC current 12.1 A 13.3 A 1.2 A apart
MPPT voltage range 260-800 V 140-1000 V 260-800 V vs 140-1000 V
Start voltage 175 V 160 V 15 V earlier start
Strings per tracker 2 1 1 string apart
Dimensions 497x460x176 mm 387x425x178 mm 497x460x176 mm vs 387x425x178 mm
02

Full specification

Parameter STP8.0-3AV-40 MOD 8KTL3-X2(Pro) 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 230 V 400 V 170 V apart
Max AC current 12.1 A 13.3 A 1.2 A apart
PV input
Max PV power 15.00 kW 12.00 kW 3.00 kW apart
DC/AC ratio 1.88 1.50 +0.38 for STP8.0-3AV-40
Max DC voltage 1000 V 1100 V 100 V apart
MPPT voltage range 260-800 V 140-1000 V 260-800 V vs 140-1000 V
Start voltage 175 V 160 V -15 V for MOD 8KTL3-X2(Pro)
MPP trackers 2 2 Same
Strings per tracker 2 1 1 string apart
Max input current per tracker 20.0 A 20.0 A Same
Efficiency
European efficiency 97.7 % 98.1 % +0.4 pp for MOD 8KTL3-X2(Pro)
Max efficiency 98.3 % 98.6 % +0.3 pp for MOD 8KTL3-X2(Pro)
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 20.5 kg 14.6 kg -5.9 kg for MOD 8KTL3-X2(Pro)
Weight per kW 2.6 kg/kW 1.8 kg/kW -0.7 kg/kW for MOD 8KTL3-X2(Pro)
Dimensions 497x460x176 mm 387x425x178 mm 497x460x176 mm vs 387x425x178 mm
Ingress protection IP65 IP66 IP65 vs IP66
Cooling natural natural Same
Noise 30 dB - Not published by Growatt
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes Yes Same
Arc fault protection - Yes Not published by SMA Solar
Integrated DC switch Yes - Not published by Growatt
Warranty
Warranty 5 yrs 8 yrs +3 yrs for MOD 8KTL3-X2(Pro)
03

More useful comparisons

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6 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.