Your distributed generation inverter. Ideal for community solar, agrivoltaics, floating PV, small utility and data center projects.

Sunny Highpower PEAK3 1500 VDC, 125-US / 150-US / 165-US / 172-US and FLEX

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PEAK3 – Pure Power, Maximum Efficiency.

1500 V_DC, 125/150/165/172 kW, compact design

Engineered for performance, the PEAK3 delivers unmatched power density in a compact, lightweight design—reducing transportation costs and simplifying installation. Built to excel in extreme environments, the PEAK3 ensures consistent energy yields throughout the lifetime of the PV power plant. Its field-proven OptiCool™ air cooling technology supports dependable, long-term operation even under harsh conditions.

With a 25-year design life and extendable warranty of up to 25 years, the PEAK3 is built to deliver full nameplate output from day one and throughout the plant’s lifetime.

High Power Density: Maximum output with minimal footprint
Extreme Durability: Operates reliably in high ambient temperatures and supports high DC:AC ratios
Flexible System Design: Oversize the PV array up to 200% with project-specific DC Combiner Boxes
Smart Grid Integration: The Data Manager M powered by ennexOS ensures compliance with all grid operator requirements
Repowering Ready: The PEAK3 FLEX offers best in class flexibility in a modular architecture that achieves a universal solution for repowering large-scale PV plants.
- Adjustable Power Output: 52–172 kW
- Flexible AC Voltage Settings: 200–660 VAC
- 298–1500 VDC operating range dependent on VAC

Achieve Superior Economics in Ground-Mount Projects with 480 VAC Interconnections

SMA offers the ONLY 1500 VDC inverter, the PEAK3 125 kW, with the capability to interconnect at 480 VAC without requiring significant additional equipment or sacrificing energy production. For large ground mount projects, the PEAK3 provides the most cost effective solution and the highest energy yield.

Downloads

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Datasheets
Installation manuals
Technical documentation

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For more information please contact insidesales@sma-america.com

Centralized or decentralized?

Which is the best layout for a large-scale PV power plant?

Maximum safety & reliability

The PEAK3 inverter focuses on what is most important – maximum yield and optimal plant availability.
All features and functionality have been specifically engineered to reduce weight, minimize potential error sources and maximize efficiency.
Field-proven OptiCool™ active cooling technology ensures reliable, long-term operation.

Flexible, easily scalable plant design

The PEAK3 system solution combines the advantages of a decentralized system layout with those of the central inverter concept.
The DC Combiner Boxes enable efficient planning and easy expansion of large-scale solar plants even on irregular terrain.
Thanks to the modular approach, projects can be scaled both in terms of power and function. This means maximum flexibility in the plant design.

Monitor and Control with the Data Manager M

When paired with the SMA Data Manager M, inverter is fully equipped for comprehensive monitoring and control via Sunny Portal powered by ennexOS.
This powerful platform gives PV system owners and installers real-time access to critical system data at any time and from any location. Through a single interface, you can analyze performance metrics, visualize energy yields and compare historical data. This allows for early detection of potential issues, enabling quick troubleshooting and optimized system performance.
Sunny Portal powered by ennexOS currently supports over 1 million registered systems worldwide, monitoring more than 40 GW of PV power across the globe.

www.ennexos.com

Monitor and Control with the Data Manager M

Sunny Portal powered by ennexOS

One platform for all PV systems
Remotely access, control and troubleshoot your power plant and PEAK3 inverters
Remotely configure PEAK3 inverters to enable static, limited, zero, dynamic active, or reactive power setpoints, minimizing truck rolls and ensuring compliance with utility parameter requirements

Sunny Portal

Sunny Design

Flexible system designs for PV, battery storage and energy management
Generate system configurations within minutes
User friendly interface designed for web and tablets
Free to use at no cost

Sunny Design

Smart Connected

Automated proactive system monitoring
Saves time and money while maximizing return on investment

SMA Smart Connected

Project References

Agrivoltaics - Sunny Highpower PEAK3

Size: 445 kW DC, 375 kW AC
Region: Hadley, Massachusetts
Objective: The Joe Czajkowski Solar Farm integrates a 445 kW solar array with active crop production, demonstrating the benefits of dual land use. Designed with PEAK3 inverters, the system generates passive income while preserving full agricultural functionality. It showcases how agrivoltaics can support farm viability and advance clean energy goals.
Technology: 3 x Sunny Highpower PEAK3 125 kW

Decentralized solution with up to 172 kW for large-scale PV power plants

Thanks to an intelligent system structure, all inverters and the Data Manager M are installed centrally. The DC Combiner Boxes are distributed in the field.

The result: maximum performance, cost-optimized cabling and improved installation and maintenance.

System Diagram

Whitepaper

Centralized system layout – modular inverter concept

See how a centralized layout with modular inverters can benefit your next project!

Sunny Highpower PEAK3

FAQ

Do you offer both Solar and Energy Storage Inverters?

Yes.

SHP PEAK3-US-21 is available as a PV inverter for new and repowering projects.

SHPS PEAK3-US-30, or Sunny Highpower Storage, is a 1500VDC storage string inverter.

What are the ideal applications and use cases for the SHP PEAK3-US-21?

Small Utility
Community Solar
Agrivoltaics (also known as Agri-PV)
Floating PV
Data Centers
Microgrids
DG and CCI Applications

Can I use the SHP PEAK3-US-21 on rooftops?

No, Sunny Highpower PEAK3-US-21 is not meant for rooftops given it is a 1500VDC inverter and not suitable for when AFCI and rapid shutdown may be required.

For rooftop applications when AFCI and Rapid Shutdown may be required, please use SMA Sunny Tripower CORE1 or Sunny Tripower X inverters.

Weighted CEC Efficiency of SHP PEAK3-US-21

98.5/99.0/99.0/99.0/99.0% (at 600VAC)

Peak Efficiency of SHP PEAK3-US-21

99.0/99.1/99.2/99.2/99.2%

What are the DC Voltage Operating Ranges for each model?

Please refer to the SHP PEAK3-US-21 Manual for further details:

684-1500VDC Operating Range for PEAK3-125-US-21
855-1500VDC Operating Range for PEAK3-150-US-21
898-1500VDC Operating Range for PEAK3-165-US-21
941-1500VDC Operating Range for PEAK3-172-US-21
298-1500VDC Operating Range for PEAK3-FLEX-US-21 (depending on nominal AC voltage)

What is the Operating temperature range of the SHP PEAK3-US-21?

-25°C...+60°C (-13°F...+140°F)

Sunny Highpower Peak3