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a. Summarize methodologies o calculate baseline utility consumption. Post -Retrofit Consumption will be measured and verified according to the Measurement and Verification (M&V) plan determined for each ECM implemented. First, we will focus on the term, Baseline Energy Consumption. In order to establish an energy consumption baseline that can be agreed upon, Ameresco will work closely with City personnel to determine each facility's existing energy and water consumption. Some of the data that has been previously used to establish an energy consumption baseline include: Utility bills (gas, electric, water, steam) Operational data (e.g., boiler logs, chiller logs, other documented equipment operating practices, documentation of significant equipment problems or outages) Building simulation models (e.g., DOE 2, a building simulation program developed by Lawrence Berkeley Laboratory for the Department of Energy) Pre -retrofit measurements of on -site equipment (e.g., kW on pumps, fans, chillers, lighting fixtures, etc.) Short-term metering of energy usage Long-term metering of energy usage Occupancy type, density, and schedules by building. Space conditions for each operating period and season by building Equipment inventory by building In addition, Ameresco will use mutually agreed -upon assumptions or stipulations of parameters that are universally used for baseline establishment. It is important to properly record data used in the baseline determination and the details of each ECM for future reference in the M&V Plan. Documentation will be prepared in a fashion that is easily accessible by Ameresco, City of South Bend, and any additional reviewers. Baseline documentation typically includes audits, surveys, inspections, and results of any measurements or metering activity. Four M&V options are defined in the guidelines for how savings can be transparently, reliably, and consistently determined in a manner that enables independent verification. The four M&V options are summaries below: Ciity of South Bernd —August 27, 2019 30 11. Measurement & Verification "Fame content is subject to Confidentialitb Restrictions"