Fronius Inverters
Review solar inverter brands and compare offerings of Indiana solar installers.
See how much it costs to install Fronius inverters
Home > Inverter Reviews > Fronius
Everything you need to know about Fronius solar inverters
Written by Max Kennerk, SolarCommission.Org
Updated 8-15-2025
Fronius: Company Overview and Inverter Evaluation
Company History
Fronius International GmbH, established in 1945 by Günter Fronius in Pettenbach, Austria, began as a small enterprise focusing on battery charging systems and welding technology. Over the decades, the company expanded its expertise and, in 1992, ventured into the solar energy sector, marking the inception of its Solar Energy division. Today, Fronius is recognized globally for its innovative solutions in welding, battery charging, and solar energy, with a presence in over 60 countries. It’s US headquarters is located right here in Portage, Indiana!
Equipment Offerings
Fronius offers a diverse range of solar inverters tailored to various applications:
SnapINverter Series: This includes models like the Primo (single-phase) and Symo (three-phase), known for their user-friendly design, integrated data communication, and high efficiency.
GEN24 Plus Series: These hybrid inverters provide versatile solutions for solar power generation, storage, and backup power, featuring integrated backup power options and energy management functions.
Eco Series: Designed for large-scale commercial installations, the Eco inverters offer high efficiency and are optimized for cost-effective photovoltaic systems.
Pros and Cons
Pros:
Reliability: Fronius inverters are renowned for their robust performance and longevity, attributed to rigorous quality control and innovative design features like active cooling systems.
Flexibility: With multiple Maximum Power Point Trackers (MPPTs), Fronius inverters accommodate complex system designs, including installations with panels on different roof orientations.
Advanced Monitoring: The Fronius Solar.web platform offers comprehensive system monitoring, allowing users to track performance metrics and receive updates, ensuring optimal system management.
Cons:
Price Point: Sometimes positioned as a premium product, Fronius inverters might be quoted at a higher cost compared to some competitors, which may be a consideration for budget-conscious consumers. Compare your quote with other equipment options.
Subscription Costs: Accessing advanced features on the Solar.web platform may require a subscription, potentially adding to the overall system cost of ownership.
String Inverter: Without optimizers added, the system may not be a good fit for shaded and/or multiple arrays that are positioned differently.
Failures: Some system owners have reported inverter malfunctions that required replacement.
Expert Rating: 88/100
Fronius solar inverters are esteemed for their exceptional reliability, advanced features, and flexibility in system design. While the higher price point and potential additional costs for advanced monitoring features may be considerations, the overall quality and performance of Fronius inverters make them a great choice for both residential and commercial solar installations. And, it doesn’t hurt that their US headquarters is here in Indiana!
Other inverter systems to consider:
Our top frequently asked questions:
Going solar with your utility:
