SMA Multicluster Box for Sunny Island Inverters
AC/DC Coupling for off-grid solar and on-grid battery backup Sunny Island power systems
Two to four three-phase clusters, each with three Sunny Islands, can be connected in parallel. The Multicluster Box is pre-wired for operation and equipped with a main connection for solar systems or wind energy systems. The communication cables necessary for installation are also included.
Larger systems are configured with Multicluster boxes that have a
source/load center like the one pictured above. With the appropriate
Sunny Island power panels, a Multicluster Box can seamlessly integrate
several Sunny Island inverters into one reliable AC/DC coupled power system.
SMA Sunny Island
SMA Sunny Island 6048-US Inverter
SMA Sunny Island Solar System Battery Backup Systems
SDC™ Remote Microgrid Solar Systems
SMA Multicluster-Box 12U Datasheet
SMA Sunny Island System Guide
3 inverters per 3-phase cluster. 4 clusters maximum per Multicluster Box.
Critical power for the US Department of Defense
Solar Electric Supply designed and supplied this 30 kW Sunny Island system to the US Army on the remote Bikini Atoll Islands in 2011. It provides critical power for satellite communications, a school, and base power. The AC coupled system uses a four Sunny Boy 5KW PV inverters and solar panel arrays distributed on the base that feed the six Sunny Island inverters for 30 kW 208 VAC three phase power. Dual 30 kW diesel gensets are controlled by the Sunny Islands and Multicluster for backup and load sharing. A parallel Deka sealed AGM battery bank rated at 130 kWh @ 48 VDC provides backup power at night and during cloudy weather. Save time and money by contacting us for your next SMA Multicluster project.