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172-21 vs 180-21 17 of 19 identical Swap Change inverters

SMA Solar Sunny Highpower Storage SHPS 172-21 vs SMA Solar Sunny Highpower Storage SHPS 180-21

SMA Solar Sunny Highpower Storage SHPS 172-21
SMA Solar
Sunny Highpower Storage SHPS 172-21
172 kW 98.9 % euro Grid-tie
Open inverter page Datasheet PDF
VS
SMA Solar Sunny Highpower Storage SHPS 180-21
SMA Solar
Sunny Highpower Storage SHPS 180-21
180 kW 98.9 % euro Grid-tie
Open inverter page Datasheet PDF
The verdict

2 differences, none of them an advantage

The largest is rated ac power: 8.00 kW apart. 17 of 19 comparable parameters are identical, with 13 more left out because at least one datasheet does not publish them.

See all 2 differences
How alike are they
17 of 19 comparable
parameters are identical
identical differs not published
01

What actually differs

2 of 19 parameters
Parameter 172-21 180-21 Difference
Rated AC power 172.00 kW 180.00 kW 8.00 kW apart
Max AC power 172.00 kW 180.00 kW 8.00 kW apart
02

Full specification

Parameter 172-21 180-21 Difference
AC output
Rated AC power 172.00 kW 180.00 kW 8.00 kW apart
Max AC power 172.00 kW 180.00 kW 8.00 kW apart
Grid connection 3-phase 3-phase Same
Nominal AC voltage - - Neither datasheet publishes this
Max AC current 151.0 A 151.0 A Same
PV input
Max PV power - - Neither datasheet publishes this
DC/AC ratio - - Neither datasheet publishes this
Max DC voltage 1500 V 1500 V Same
MPPT voltage range - - Neither datasheet publishes this
Start voltage - - Neither datasheet publishes this
MPP trackers - - Neither datasheet publishes this
Strings per tracker - - Neither datasheet publishes this
Max input current per tracker - - Neither datasheet publishes this
Efficiency
European efficiency 98.9 % 98.9 % Same
Max efficiency 99.2 % 99.2 % Same
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage See per-model DC battery voltage range (590-1500 V; 880-1500 V; 968-1500 V; 1012-1500 V) See per-model DC battery voltage range (590-1500 V; 880-1500 V; 968-1500 V; 1012-1500 V) Same
Max charge current 180 A 180 A Same
Backup power - - Neither datasheet publishes this
Physical
Weight 99.0 kg 99.0 kg Same
Weight per kW 0.6 kg/kW 0.6 kg/kW Same
Dimensions 830x770x462 mm 830x770x462 mm Same
Ingress protection IP65 IP65 Same
Cooling forced-air forced-air Same
Noise 69 dB 69 dB Same
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - - Neither datasheet publishes this
Ethernet Yes Yes Same
Arc fault protection - - Neither datasheet publishes this
Integrated DC switch - - Neither datasheet publishes this
Warranty
Warranty 5 yrs 5 yrs Same
03

More useful comparisons

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6 differences, the largest is max dc voltage
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8 differences, the largest is rated ac power
04

Written summary

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