On-Grid
SMA undefined Sunny Highpower 172-21
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SMA • Sunny Highpower PEAK3 100/150/172/180-21

Sunny Highpower 172-21

Region:Germany
Region shows where the seller or factory is located. Most ship globally, and all listed suppliers should be able to ship to your current location.
172kW
Nominal AC Power
99.2%
Max Efficiency
770 x 830
Dimensions (mm)
Size Your System Find Installer

Ideal Use Case

The SMA Sunny Highpower 172-21 is tailored for specific solar energy needs. This inverter is an excellent choice if you:

Manage a large 172.0 kW commercial or industrial solar array
Use three-phase grid connection
Have panels with uniform orientation and tilt
Want maximum energy harvest (99.2% peak efficiency)
Focus on grid-tied operation without battery storage
Operate in extremely cold climates

Don’t guess your solar setup — calculate it first!

Take our Solar Quiz to get a personalized recommendation for panels, inverter, battery capacity, and system size — before you spend money on the wrong setup.

Run Technical Sizing

AC Output Data

Nominal AC Power172 kW
Max Efficiency99.2 %
Euro Efficiency98.9 %
Max AC Current151 A
Rated AC Current0 A
Number of Feed-in Phases3
THD (Total Harmonic Distortion)0.5 %

DC Input Data

MPP Voltage Range968~1450 V
Max DC Voltage1500 V
Rated DC Voltage968 V
Min DC Voltage to Start1032 V
Max DC Current0 A
Number of MPP Trackers1
DC Inputs1

Mechanical & Environmental Data

Dimensions (W x H x D)770 x 830 x 462 mm
Weight99.0 kg
Protection ClassIP65
Cooling MethodFan
DisplayLED
InterfaceEthernet

Operating Conditions

Operating Temperature-25 ~ +60 ℃
Humidity0-100 %
Frequency44-66 Hz
Transformer TypeTransformerless
Power Consumption (Night)5 W

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Product FAQ

What size solar array can the SMA Sunny Highpower 172-21 handle?

The SMA Sunny Highpower 172-21 has a nominal AC output of 172kW with a maximum efficiency of 99.2%. It is typically paired with a solar array of 206–224kW DC for optimal energy harvest.

Is the SMA Sunny Highpower 172-21 a hybrid inverter?

The SMA Sunny Highpower 172-21 is a on-grid inverter. To add battery storage, you would need a separate AC-coupled battery inverter or upgrade to a hybrid model.

Does the SMA Sunny Highpower 172-21 have WiFi monitoring?

Most SMA inverters come with or support optional WiFi/Ethernet dongles. This allows you to track your solar production and battery status via a mobile app or web portal in real-time.

How many MPPT trackers does the SMA Sunny Highpower 172-21 have?

This inverter features 1 independent MPPT tracker with a maximum DC input voltage of 1500V. Multiple trackers allow panels on different roof faces or orientations to operate independently for maximum yield.

Is the SMA Sunny Highpower 172-21 a three-phase inverter?

Yes, this is a three-phase inverter. Three-phase inverters are ideal for larger homes, commercial systems, or regions with three-phase grid connections.