Installing Solar Since 1983
License Number 773985

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CALTRANS WILLOW SPRINGS PHASE 3

After 12 years of operation the Outback FX inverters were wearing out. The moving parts- fans and relays- had experienced maximum cycles and were failing. The first two sets of batteries had been cycled hard and were no longer viable. A four Radian system with new charge controllers and Deka flooded batteries were installed. Miller Solar did all of the design to shoe-horn the new electronics into existing cabinets. A new building was constructed adjacent to the existing building to hold the batteries.


New battery array.


Wiring harness with custom bus bars.


Every lead the leaves this buiding must be fused. These are 400A Class T fuses mounted on the ladder rack.


Close up of negative bus bar assembly.


The breakers in the Outback GSLC cabinets are configured with wiring studs on the back, making them hard to wire. We modify the dead-front with a hinge at the bottom to make them easier to access.


Here is the completed main cabinet with one Radian, the charge controllers, a GSLC configured as a recombiner and the AC distribution.


Here is the interior of the secondary cabinet with 3 Radians. These are existing cabinets with active cooling.


The PV leads are up-sized to reduce voltage drop. A custom wire reducer was fabricated to allow a more reasonable wire gauge to run inside of the raceways.