Opening of Proposals - Olive WTP Solar GESC Proj No 124-050 - Veregy

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City of South Bend, IN — Department of Public Works 4'06'V ER EGYV RFQ Response: Guaranteed Energy Savings Contract toot Technical Approach NEEDS AND SOLUTIONS City of South Bend Indiana has reached out to Veregy to provide proposals for the installation of solar generation systems at the Olive Street Water Treatment Plant, and other energy saving measures. South Bend has a resident solar panel manufacturer, Crossroads Solar, that manufactures quality solar modules. We have modeled the use of their panels and recommend entertaining the use of their product assuming they meet warranty and production guidelines set forth by Veregy for the benefit of our customer. Veregy hires local contractors for all construction activities; our development team has been in contact with K2 Power Solutions, and we look forward to working with them on this project. Well Pump Ground Mounted Solar Veregy recommends installing ground mounted solar arrays to maximize space available West of the filtering facility. The solar produced electricity will also provide a positive cash flow by offsetting purchases from the utility for the energy consumed at the plant. The City of South Bend has identified the best location for solar arrays. This brought us to the sizing portion of design. The ground layout was replicated in our solar design software Helioscope along with fencing, trees or other objects that could cause shading. Site visits confirmed this layout and allowed us to examine the electrical infrastructure in place. From here the interconnection to the electrical utility was looked at for a best practice way of connecting to the grid. After the maximum amount of solar was placed on the ground, the design was optimized. The projected electric generation from this was compared to the present consumption. The table above summarizes our findings, and the layout for the array can be found to the right. Further information about the design can be found in the Appendix 1. Further engineering will be required to identify underground obstructions and drainage requirements that may affect final pricing. South Bend WTP — Well Pumps 915 Olive Street, South Bend, IN Solar Array Size 300 kW AC Annual Electric Production 450 MWh Existing Annual Consumption 765 MWh Portion Offset by Solar 62% HVAC Measures Veregy engineers inspected all the facilities at the WTP and found most of the HVAC systems to be in good working order. It is our recommendation to replace an Air Cooled Condenser Unit and the Boiler in the main office with higher efficiency equipment. Page 18