SunPowerCorporationDocument#001‐69178Rev**
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SAVE THESE INSTRUCTIONS
1.0 INTRODUCTION
The SunPower Inverter is a utility interactive inverter for photovoltaic (PV) systems. The
SunPower Inverter is tied to an electrical source provided by the local utility company (i.e. on-
grid), as well as to the photovoltaic system. The SunPower Inverter contains everything
needed to convert the DC voltage generated by the solar arrays into the AC voltage required to
power a house. Because the inverter is tied to a local utility source, if a house’s electrical needs
exceed the power generated by the solar arrays, the house automatically taps into its local
power supply for that additional electricity. Likewise, if a house does not utilize all the power
generated by the solar panels, the inverter actually reverses the flow of electricity (i.e.
electricity is fed back into the grid). Think of it as accumulating credits of electricity with the
utility for future use. The information contained within this manual will provide all the
information necessary for successful installation and use of the SunPower Inverter.
Product Features
Easy Installation
The custom designed mounting bracket and easy-to-follow instructions make installation
simple and quick.
Simple, Innovative Design
Everything needed to power up the SunPower Inverter is contained within the inverter
box, including AC and DC connections and circuits. Low part count keeps costs down and
simplifies the manufacturing, and installation processes.
Safety Features
The SunPower Inverter is designed for safety. Control power comes from the utility grid,
ensuring that power can never be generated during a utility grid failure. The output
stage transformer guarantees isolation of the utility grid and PV modules.
Expandability
The SunPower Inverter is designed with growth in mind, from residential to commercial
use. Most PV system configurations can be accommodated.
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