Lighting Occupancy Sensors MEASUREMENT & VERIFICATION OPTION A. Option A has been selected for this retrofit due to the high confidence with which the operating hours may be determined and equipment numbers and locations will not vary materially. The lighting sensor FIM key parameter is operating hours of the affected lighting systems. SIEMENS uses Option A for the lighting sensor FIM due to the ability to isolate the key parameter, which is operating hours of the affected lighting system. Hours of operation in the affected lighting systems are the primary parameter for energy savings for this FIM. Lighting wattage and efficiency will remain constant pre and post installation of the occupancy sensors. The post measurement of performance will be performed by verifying the function of the occupancy sensors. If the occupancy sensors are functioning as intended, the energy savings will be achieved by automatically turning off the lights during unoccupied periods.. The evaluations of the pre and post room occupancy and lighting operating hours measurements will be performed according to an 80% (confidence) / 20% (precision) sampling plan to verify the function of the occupancy sensors; please reference the sampling plan in Table 4.3.8 of this report. The following table shows the M&V summary expected from this FIM: Table 4.4.1 - M&V Guaranteed Savings Summary for Lighting Sensors M&V Savings Summary – Lighting Sensors – TCC All Campuses - City of Tallahassee Utility Main Campus Electric Energy Reduction (kWh) Ghazvini Campus Electric Energy Reduction (kWh) FPSI Campus No Dorms Electric Energy Reduction (kWh) FPSI Campus Only Dorms Electric Energy Reduction (kWh) Total Reduction (Dollars) Units 82,426 3,107 73,882 1,123 Rate* $0.0600 $0.0605 $0.0785 $0.0787 Dollars $4,948 $188 $5,798 $88 $0 $0 $11,022 Lighting Sensors Calculations Savings for the occupancy sensors will be determined by using a spreadsheet model incorporating room-by-room survey results of fixture quantity and type, calculated operating hours based upon engineering and measurements performed during the project development and unit costs factors from utility rates. Annual KWH Savings = (Pre Lighting Burn Hours during non-occupies times x Pre KW Measurement) – (Post Lighting Burn Hours during non-occupies times x Post KW Measurement) Annual Dollar Savings ($) = (KWH Savings x $/KWH Rate) Calculations Variables Index / Baseline Values Pre Installation Burn Hours – see Appendix 3 “TCC - Lighting Saving Analysis All Campuses.pdf” Measurement or Reference Tables Av...
