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William Waters III - N7IPY

Off-Grid Solar Install

This year, 2012, we installed a 1.2KW Solar Off Grid system in the foothills of California.  The system is designed to handle high loads for short periods of time; like a 230VAC Well Pump.  We found a system that was being sold used and I tore it down keeping the large Inverts, solar panels and a few parts.  I then found the remaining parts and installed the system.

The system is based around 2 Trace (Xantrex) DR2412 Inverters synced to provide 230 VAC and 115 VAC.  It took a while but I found a new in the box Trace DC250 DC Power Panel and added a second 250AMP DC disconnect/Circuit Breaker.  I added a second Trace C40 Charge controller to allow for up to 80Amps of charge current from the Solar Panels.   A secondary but much smaller Inverter was added to the system to support always on appliances, battery chargers and other smaller loads. 

The system batteries consist of 12 6 Volt Golf Cart batteries wired in series parallel for 12 Volts.

 

WholeSystem.JPG
Whole system mounted in its enclosure.
DC_Disconnect_Wiring.JPG
Close up of the DC Disconnect and monitoring system.
AC-Pannel.JPG
BatteryBox.JPG

The battery box is built with an inner box and outer box with 1.5 inch foam insulation between the 2 boxes.  The outer box is built from 2x4s and ½ plywood.  The inner box is built from 3/16 plywood.  The inner box is sealed and then painted.  The top of the box is built in the same fashon.

SolarDiagram1KW.jpg

The Wiring Diagram for the Full System

(C) 2007 - 2017  William Waters   Last Updated July, 2017