3
Product Description
3.1
Sunny Island
The Sunny Island is a battery inverter that controls the electrical energy balance in an off-grid system, in a battery-
backup system or in a system for increased self-consumption. In a battery-backup system, you can also use the
Sunny Island for increased self-consumption.
A
B
C
D
Figure 1: Design of the Sunny Island inverter
Position
Designation
A
Ventilation grid
B
Type label
C
Control panel
D
Enclosure lid
The Sunny Island supplies AC loads in the system from a battery or charges the battery with the energy provided by
AC sources (e.g., PV inverter). AC sources supply loads and are used by the Sunny Island to recharge the battery. In
order to be able to increase the availability of the off-grid system and reduce the battery capacity, the Sunny Island
can use and control a generator as an energy reserve.
The loads may temporarily overload the Sunny Island. If there is a short circuit, the Sunny Island briefly feeds short-
circuit currents into the utility grid. As a result, the Sunny Island may trip certain circuit breakers (for technical data see
installation manual of the Sunny Island inverter).
Type label
The type label clearly identifies the product. The type label is located on the right-hand side of the enclosure (for a
description of the type label, see the Sunny Island inverter operating manual).
You will require the information on the type label to use the product safely and when seeking customer support from
Service (see Section 16 "Contact", page 161).
3 Product Description
SMA Solar Technology AG
Operating Manual
15
SI30M-44M-60H-80H-BE-en-33
Summary of Contents for SUNNY ISLAND 3.0M
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