RFQ - SBFD Solar PV - Selge Construction

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PC"ONSTRMUCTIO'N Selge Construction South Bend GESC 2019 Solar Technology and Pricing For this project we intend to work directly with the manufactures to secure the best pricing possible. In the event the project is under 200kW, we may need to source from a distributor. No matter where it is sourced, we will receive at least 3 quotations for each component to ensure we compare the best product with the best price. To determine a quality product, we look at what the industry average is for material warranty, energy production, degradation, and power output. For the three main items, we would use these standards as a benchmark: • Solar Panels — 25-year 85% Power Output Guarantee with linear degradation • Inverter — 99.9% uptime guarantee with 15-year product warranty • Racking — 15-year material warranty These would be a benchmark for us to make our selection. Additional warranties or power output guarantees would be favorable to the project. Based on where the current industry pricing is, the size of this building, and the type of products we will be considering, an installation price of $1.50 - $2.00 per DC/Watt installed would be a typical range. There are some products that could increase the price of the solar installation but would produce more energy. At the end of the day, we will focus on the best LCOE and ROI to determine which products are used. The roof will be another part of the selection process that needs to be addressed. We are concerned with the long-term viability of solar placed on top of the current roof. While there is no doubt some additional life left in the current roof, we do not believe it would make it past the life of the solar. We have been in discussions with Midland Engineering „in a d awlb,ea,) and they have inspected the roof on our behalf. The current roof is 16 years old and past its original warranty. Our goal would be to make the roof "Solar Ready". In order to do this, a new membrane would need to be installed along with a coverboard to make PV Solar Ready. At a rninimum '/4" Dens Deck or'/2" HD ISO board is recommended. The new membrane roofing system can be mechanically fastened, Rhinobond (which is what Midland Engineering would typically do over fully tapered insulation). This installation can also be performed in cold weather since it does not utilize adhesives. 26