Comparable Alliant Energy Site – Fond du Lac

Site is 1.245 MW AC on approximately 7.5 acres.

There are 3,848 solar modules and 10 string inverters

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Comparable Alliant Energy Site – Fond du Lac

Row spacing is 37’ Center-to-Center. Racking tilt is 30 degrees due south.

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Comparable Alliant Energy Site – Fond du Lac

The racking system chosen at FDL was a 1-post cantilever design, vs 2-post designs available that have posts at the front and back edges of the racking. IPL has both styles of racking in service at different sites.

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At FDL, bottom edge clearance to ground is 30” minimum. Top edge height is about 10’.

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Comparable Alliant Energy Site – Fond du Lac

8’ high deer fence with wooden posts was used

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Comparable Alliant Energy Site – Fond du Lac

The main equipment area houses a transformer, meter cabinet, main switchboard, inverters, etc. This photo is from the construction period.

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Comparable Alliant Energy Site – Fond du Lac

Conduits take the wires from the end of the rows and bring them underground to the main equipment area. Minimum depth is based on electrical code requirements.

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Electrical Equipment & Groundcover

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Vegetation Boundaries / Zones

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Marshalltown Generating Plant Solar

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