Concrete Pad Details for Ground-mounting Powerwall on Pre-Cast Concrete Pad an Existing Structural Wall

A6

In this mounting configuration, a concrete pad is placed at the base of the existing wall capable of supporting Powerwall. Powerwall is mounted to the wall, allowing it to be vertically supported by the concrete pad and laterally supported by the existing wall.

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Note
Refer to Powerwall Anchoring Details for more information.

Concrete Pad Sizes

Number of Units Pad Width Pad Length
1 Powerwall 16 in (406 mm) 34 in (864 mm)
2 Powerwalls 16 in (406 mm) 34 in (864 mm)
3 Powerwalls 20 in (508 mm) 34 in (864 mm)

Concrete Pad Requirements

  • Within the perimeter of the pad, excavate and remove all loose and organic material, compacting soil to a level surface. Embed the concrete in the soil per detail (below). Should AHJs require further embedment of footing, contractors shall consult a third party structural designer or other qualified person acceptable to the AHJ to abide by the requirements set by the AHJ.
Figure 1. Powerwalls Ground Mounted on Existing Structural Wall and Pre-Fabricated Concrete Pad (Side, Front Views)