SMA Sunny Boy 3000US - Product Overview

Introduction Product Overview
1-2 SMA America SB3000US-4000US-11-SE1607
Product Overview
The Sunny Boy is a DC to AC grid-tied utility interactive inverter for use with
photovoltaic (PV). The SB 3000US is additionally UL listed for the use with fuel cell,
wind turbine and other sources of DC power.
In general, the Sunny Boy takes power from a DC source (PV modules) and converts
it to AC power for the utility grid. This power is delivered first to local loads
(household appliances, lights, motor loads, etc.), with any excess power fed to the
utility. The power consumed by the local loads reduces the power needed from the
utility. Excess power may actually “spin the utility meter backwards” depending on
the type of meter in your system. This power may also be recorded as power credits
by the utility company depending on the interconnection agreement. An example of
basic system components is shown in
Figure 1-1.
Figure 1-1 Sunny Boy Installed in a Utility Interactive PV System
Note: Policies vary from one utility company to another.
Consult with a representative of the local utility company
before designing and installing a PV system.
PV Array
Sunny Boy
Utility Grid
Meter