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Solar Installation, Days 3-4

Updated: Nov 12, 2019

On Wednesday and Thursday, the final elements of our solar system were installed. The completed system was tested and briefly produced power before being taken offline until the Austin Energy inspection.

The solar array looks great! The installation is very tidy, especially after the ends of the rails were trimmed, and I like how the design frames the dormer.

The back of the house has a long conduit run from the panels to the inverter and meters at the alley. DC power cannot run through the building envelope per code, so our brilliant suggestion to run the conduit through the attic was not possible. Had we gone with microinverters – an inverter per panel – the AC power could’ve run through the attic.

The panels are wired in series as two strings of 10 panels. The wires come to a transition box, then extend through the conduit to the inverter. Next is the photovoltaic meter, the disconnect switch, the main service panel for the house, and finally the electric meter. During the brief test, we watched the meter run backwards! The other box you see contains equipment that will allow us to monitor our solar production once we’re up and running.

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