SMA Sunny Island 4.4M Battery Inverter at Prior PV
The SMA Sunny Island 4.4M is the compact battery inverter for self-consumption, backup power and off-grid systems. 4.4 kW power, 48V battery voltage, 95.5% efficiency. For lead-acid and
A solar inverter costs $1,500 to $3,000 total on average for a medium-sized solar-panel system installation. Solar inverter prices depend on the size and whether it's a string inverter, microinverter, or hybrid model. String inverter systems cost less up front, but systems using microinverters last longer.
A Sunny Island Inverter is a type of inverter used in SMA's SDC Remote Microgrid Systems and Residential Battery Backup Systems*. The redundant design of AC and DC coupling, and expandability of the systems with the Sunny Island guarantee the highest reliability and flexibility.
String solar inverters last 10 to 15 years on average, and you'll likely need to replace the inverter much sooner than the solar panels themselves. Most microinverters last 15 to 25 years. Be sure to check the warranty time frame and coverage when choosing an inverter for your solar system.
Factors that affect solar inverter costs include: System size – Your inverter's input-wattage rating should be close to your solar panel system's output rating. U.S. residential solar panel systems typically fall in the 5 kilowatt range. Efficiency – The industry standard for peak efficiency is 97%.
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