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<br />8 <br /> <br /> <br />Figure 2: https://mn.gov/commerce/energy/consumer/energy-programs/solar-public-buildings.jsp <br />Technical Specifications <br />System Description: <br />Details on the equipment selectfon and their qualitfes will be discussed here. For plans on how to electrically <br />connect the array and general locatfons of equipment please see the Equipment Layout sectfon. <br />The array is comprised of (51) ZnShine 415W bifacial modules. These panels have an efficiency ratfng of <br />21.17% with a 12-year product warranty and 30-year output guarantee. The solar panels will be mounted to <br />IronRidge XR100 railings. These railings are flush mounted to the roof surface such that the panels are parallel <br />to the roof. The railings are attached to IronRidge Halo UltraGrip footfngs, which are cast aluminum roof <br />attachments. These are flashed and bolted to the rafters below the deck surface by custom 3” bolts which <br />feature waterproofing. These attachments also take the possibility of missing the rafter into account, where six <br />bolts can be installed to the attachment to mount it to the deck. This is important when rafter spacing is <br />inconsistent to avoid leaving holes where the bolts are removed and moved to hit a rafter. <br />Moving on to electrical equipment, this system employs a 208V three phase SolarEdge inverter. Only one <br />inverter is used, which should aid in keeping the amount of maintenance down. The system also features <br />optfmizers which are devices that are connected to each individual solar panel. The optfmizer allows the <br />system to adjust voltage/current output to maximize power productfon and bypass any shaded panels that <br />may drag down the power productfon of adjacent panels. This is especially relevant to this site as there are <br />trees that will cast shade onto the proposed array. These optfmizers allow the system to mitfgate the effects of <br />panels that are mismatched in on how much light is being exposed to them. This inverter is also Smart-grid <br />Rule 21 compatfble and UL1741-SB certffied which meets all requirements set by the utflitfes’ Technical Service <br />Manual. <br />Further electrical components used include two 100A disconnects. These allow the operator or emergency <br />response to shut down the solar array and satfsfies NEC and utflity requirements. Details on proposed locatfons <br />for new equipment will be discussed in the Equipment Layout sectfon. <br />