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More powerful than ever
Sunny Island X-US SI27-US (208V) / SI60-US
More power for your independence
The next generation of battery inverters
The Sunny Island X-US helps ensure that self-generated solar power is stored and made available whenever it’s needed, whether on the utility grid or in remote off-grid areas.
Engineered for maximum flexibility and reliability, it performs consistently across extreme environments, including desert heat, tropical humidity and snowy conditions due to its broad operating temperature range.
The Sunny Island X-US combines integrated energy management with robust design to keep systems running even in critical conditions. Using SMA Sunny Portal powered by ennexOS, installers and system owners can easily visualize components and monitor energy flows. Built as a highly durable battery inverter, it’s engineered for long-term performance and comes standard with 10 years of warranty protection.
Benefits
High Performance
Full power up to high temperature ranges 113°F (45 °C)
Intelligent energy and load management
Reliable operation under extreme conditions
Smart Monitoring, Control and Service
Integrated energy management features for on-grid systems
24/7 performance monitoring via Sunny Portal powered by ennexOS
Comprehensive system and battery training, including prioritized commissioning
Secure & Reliable
German standards in cybersecurity
System design support for on-grid applications
10 year standard warranty **
Flexible
Comprehensive and simple battery integration
Integration of generators or utility grids in off-grid installations*
Scalable and standardized system design
* Made possible with integration of a 3rd party microgrid partner
** When registering via the SMA product registration page
Sunny Island X-US
