The new SMA Sunny Island 4548-US and 6048-US inverters are based on the proven off-grid technology in the Sunny Island 5048-US but now feature 20 percent more power output. A maximum efficiency of 96 percent ensures peak production, which results in reduced diesel usage and makes a smaller dimensioning of the PV array possible. The new Sunny Island with two different power ratings enable more flexible system sizing. And, with multicluster technology, up to 12 Sunny Islands can be integrated into off-grid power systems up 100 kW in size.

Engineered for resilience and flexibility, the SMA Sunny Island SI6048-US-10 is a high-performance off-grid inverter designed to deliver reliable power in remote and backup applications. With a continuous output of 5,750 watts and support for 48V battery banks, it’s ideal for residential, commercial, and microgrid systems seeking energy independence.

Key Features:

• Proven Off-Grid Technology: Built on SMA’s trusted Sunny Island platform, now with 20% more power than previous models.

• High Efficiency: Up to 96% peak efficiency reduces fuel consumption and optimizes solar array sizing.

• Scalable Architecture: Supports multicluster configurations—stack up to 12 units for systems up to 100 kW.

• Flexible Voltage Output: Stackable for 120/240V split-phase or 120/208V three-phase systems.

• Advanced Battery Management: Includes 100A charger, battery disconnect, and state-of-charge metering for extended battery life.

• AC Coupling Ready: Compatible with SMA Sunny Boy inverters and generator input for hybrid setups.