From the transcript

Uh, just a quick summary of the major changes and what is before you tonight. The project includes a complete replacement of the existing substation, so we are installing 2 new transformers for needed redundancy, and those 2 transformers are enclosed on 3 sides by a concrete barrier for additional visual and noise buffering. The transformer that's on site today does not have any additional buffering features. We are replacing two separate switchgear facilities with a single enclosure. We're paving the driveway, proposing to improve site circulation, and install a new ornamental security fence.