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Fronius Primo 8.2-1 vs GW8500-MS 8 of 21 identical Swap Change inverters

Fronius Primo 8.2-1 vs GoodWe GW8500-MS

Fronius Primo 8.2-1
Fronius International
Fronius Primo 8.2-1
8.2 kW Grid-tie
Open inverter page Datasheet PDF
VS
GoodWe GW8500-MS
GoodWe
GW8500-MS
8.5 kW 97.3 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

13 differences, and they point both ways

The largest is rated ac power: 0.30 kW apart. 8 of 21 comparable parameters are identical, with 11 more left out because at least one datasheet does not publish them.

See all 13 differences
How alike are they
8 of 21 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 21 parameters
Parameter Fronius Primo 8.2-1 GW8500-MS Difference
Rated AC power 8.20 kW 8.50 kW 0.30 kW apart
Max DC voltage 1000 V 600 V 400 V apart
Max input current per tracker 33.0 A 16.0 A 17.0 A more headroom
Max efficiency 97.0 % 97.7 % 0.7 pp more efficient
Max AC power 8.20 kW 9.35 kW 1.15 kW apart
Weight 21.4 kg 22.5 kg 1.1 kg lighter
Max AC current 34.2 A 42.5 A 8.3 A apart
MPP trackers 2 3 1 tracker more
Ingress protection NEMA 4X IP65 NEMA 4X vs IP65
Nominal AC voltage 240 V 230 V 10 V apart
MPPT voltage range 200-800 V 80-550 V 200-800 V vs 80-550 V
Dimensions 627x429x206 mm 511x415x175 mm 627x429x206 mm vs 511x415x175 mm
Cooling forced-air natural forced-air vs natural
02

Full specification

Parameter Fronius Primo 8.2-1 GW8500-MS Difference
AC output
Rated AC power 8.20 kW 8.50 kW 0.30 kW apart
Max AC power 8.20 kW 9.35 kW 1.15 kW apart
Grid connection Single-phase Single-phase Same
Nominal AC voltage 240 V 230 V 10 V apart
Max AC current 34.2 A 42.5 A 8.3 A apart
PV input
Max PV power - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
Max DC voltage 1000 V 600 V 400 V apart
MPPT voltage range 200-800 V 80-550 V 200-800 V vs 80-550 V
Start voltage 80 V 80 V Same
MPP trackers 2 3 +1 trackers for GW8500-MS
Strings per tracker - 1 Not published by Fronius International
Max input current per tracker 33.0 A 16.0 A +17.0 A for Fronius Primo 8.2-1
Efficiency
European efficiency - 97.3 % Not published by Fronius International
Max efficiency 97.0 % 97.7 % +0.7 pp for GW8500-MS
CEC efficiency 96.5 % - Not published by GoodWe
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 21.4 kg 22.5 kg -1.1 kg for Fronius Primo 8.2-1
Weight per kW 2.6 kg/kW 2.6 kg/kW Same
Dimensions 627x429x206 mm 511x415x175 mm 627x429x206 mm vs 511x415x175 mm
Ingress protection NEMA 4X IP65 NEMA 4X vs IP65
Cooling forced-air natural forced-air vs natural
Noise - - Neither datasheet publishes this
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi Yes Yes Same
Ethernet Yes Yes Same
Arc fault protection Yes Yes Same
Integrated DC switch Yes Yes Same
Warranty
Warranty 10 yrs - Not published by GoodWe
03

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04

Written summary

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