Opening of Proposals - WWTP Solar Guaranteed Energy Savings Contract Proj. No. 124-015 - Veregy

Home Browse Search

City of South Bend, IN – Department of Public Works RFQ Response: Guaranteed Energy Savings Contract Page | 9 Administration and Laboratory Building Veregy recommends installing solar on most of the roofing area to maximize the amount of carbon offset in the most economical method. The solar produced electricity will also provide a positive cash flow by offsetting purchases from the utility for the energy consumed at Administration Building. After the maximum amount of solar was placed on the roof, 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. Administration / Laboratory Building HVAC Measures Veregy engineers inspected all the facilities at the WWTP and found most of the HVAC systems to be in good working order. It is our recommendation to replace a 7.5-ton ACCU, building controls, and recommission existing systems in the headworks building. Replace building controls and recommission existing systems in the administration building. Replace a window air conditioning unit in the dewatering building with a central AC system and repair the window where unit is removed. LED Lighting Our lighting engineer walked all the facility and found 392 light fixtures that we recommend be upgraded to LED. This scope of work will realize a quick payback in savings and, coupled with a rebate from the utility, will provide a great return on investment. Administration / Laboratory Building 3113 Riverside Drive, South Bend, IN Solar Array Size 60 kW AC Annual Electric Production 88 MWh Existing Annual Consumption 217 MWh Portion Offset by Solar 28%