Tripp Lite APSWX Series Owner's Manual page 10

2. Features
Solar First + Utility without Battery: Solar energy provides power to the connected loads as the first priority. If solar
energy is not sufficient to power all loads, utility will supply power to connected loads at the same time.*
Feed-in to grid*
To load
Utility power input
Solar power input
*Feed-In to Grid (Optional): In Utility First, PV First and Hybrid modes, the feed-to-grid option allows any unused excess solar energy
for energy storage or loads to be sent back to the grid.
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