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6 <br />PV MODULES <br />The Applicant proposes to install approximately 2,250 PV modules (final module count to be <br />confirmed prior to building permit issuance and start of construction) to convert sunlight to <br />electricty for local use. The PV modules installed will be consistent with the type, make, and size <br />of PV module used in residential rooftop <br />solar installations and will consist of <br />individual solar cells encased in steel and <br />glass with an anti-reflective coating as <br />shown in Figure 2. The modules will be <br />arranged in rows and the rows will be <br />spaced apart approximately 15 feet to <br />prevent inter-row shading and to allow for <br />stormwater infiltration and maintenance <br />equipment access. <br />RACKING <br />The PV modules will be mounted on single-axis trackers supported on stationary piles as shown <br />in Figure 2 above. Each row of solar panels will be strung together in a north-south orientation <br />and the panels will tilt on a single-axis (facing east in the morning <br />and tilting toward the west, following the sun, through the course <br />of each day to maximize energy output). The top of the panels <br />will stand no higher than 14 feet. <br />The racking system and panels are supported by steel piles <br />driven to a depth of 5 to 9 feet below grade, as shown in Figure <br />3.No footings are required for the driven piles. Within 60 days of <br />completion of construction, a professional engineer licensed in <br />the state of Minnesota will ceritify in writing that the Project’s <br />foundation and design of the solar energy system is suitable per <br />the City’s Standards for Alternative Energy (codified at Section <br />154.308.A.4).Figure 3. Steel pile installation <br />Figure 2. Mounted PV Modules