Opening of Qualifications - SBFD & MLK GESC Proj No 125-008 - Veregy Energy

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City of South Bend, IN — Department of Public Works , J ' VER EGY' GESC: Central Fire Station & MLK Dream Center Solar PV 04 OPTION C Verification techniques involve utility whole building meter analysis, reviewing overall energy use, and identifying the effects of energy projects on a facility. Energy use before and after a retrofit project is compared to determine savings. The measurement of energy consumption and the cost savings associated with installed energy management equipment are a comparison between the energy consumed during the current calendar period and the baseline calendar period. It consists of only the energy bills applicable to the buildings under energy management. Once the program is in place, energy use is taken from current utility bills. OPTION D Computer models are developed that use simulations of baseline and post -installation energy use to determine savings. For this project we would recommend using both Options A and B. For all operational savings measures we would utilize Option A due to the complicated nature of trying to meter this equipment. As for the solar arrays we would measure the output on an ongoing basis (Option B), which requires minimal metering equipment. The cost of this ongoing measurement and verification is bundled in our extended warranty/maintenance program. This is a completely optional program that can be discontinued at the City's discretion. In this way, City of South Bend can be certain that the guarantee is met, and the project is not burdened by ongoing measurement & verification if they so choose. Our proposal would also assume non -utility savings incurred by reduced maintenance and down -time of HVAC equipment. MEASUREMENT AND VERIFICATION PLAN AND ANNUAL SAVINGS REPORT The two primary responsibilities of the Measurement & Verification department at Veregy are to ensure that the solar assets are performing as expected and to track savings for the customer. From the performance perspective, solar production and insolation data is compiled every week and benchmarked against our expected production value for the current month in the typical meteorological year (TMY). During the design process, TMY3 data is used to simulate expected monthly solar production. As a result, we know how much energy the system could produce given a certain magnitude of global horizontal insolation (GHI). By compiling the actual GHI data for a site, we are able to implement a performance ratio to calculate the expected solar production for that site, and thereby determine if the system is performing as expected. From the savings perspective, revenue grade meters and communication systems are used to pull production data either on -site or through the internet. The production data is compiled, tracked, and benchmarked to ensure that we are fulfilling our obligations to the customer. At the end of each guarantee year, the customer will be given a yearly production and savings report by Veregy, as well as a yearly "Guaranteed Energy Savings Contract Annual Savings Report" detailing environmental and dollar savings that is to be filed with the Indiana Department of Local Government Finance. Page 114