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INDIAN RIVER COUNTY PHASE 2 TECHNICAL ENERGY AUDIT RECOMMENDED ENERGY CONSERVATION MEASURES levels to obtain greater savings (the estimated improvement in light levels in most areas are in a range of 5 to 10% in comparison with the existing light levels). FPLES recommends that Indian River County moves forward to implement the lighting retrofit, as the ECM has the following savings and cost characteristics: 92mmended 280 4 333 1322 1178 $23,332 4.8 Yrs (Note: The detailed analyses and cut sheets for this ECM can be found in Appendix H& I) ECM - 2: Occupancy Sensors FPLES performed an analysis of the facility's lighting system with respect to the use of occupancy sensors. It showed that additional savings for the selected rooms can be achieved adding the sensors. This is based on a review of the facility's occupancy pattern, lighting usage and FPLES historical data. For this facility, multiple rooms were selected for the installation of occupancy sensors and/or time switches which resulted in additional 145 kWh in savings. The models being used are shown in the Appendix and are for the various rooms (storage rooms, mechanical rooms and electrical rooms). Occupancy sensors have an annual savings of$12, with $543 cost and simple payback of 35 years. Therefore, FPLES does not recommends that Indian River County moves forward to implement the occupancy sensors .The detailed analyses and cut sheets for this ECM can be found in Appendix H&I. ECM - 3: Water Conservation FPLES performed a walkdown of the facility's domestic water system with respect to installing low flow and ultra low flow fixtures. As a result, it was determined that savings can be achieved through the replacement and/or retrofit of water fixtures. The analysis included determining the consumption of the existing (pre) fixtures, comparing it to the baseline water bill (see Modeling Methods, Section 3) and determining the consumption of the retrofit (post) fixtures. Once the post and pre consumption were determined, the savings were calculated based on the current water/sewer rates. The identified high water consumption faucets and urinals should be replaced at this facility. The field investigation identified 18 restroom fixtures at the facility. After completion of the analysis, 10 replacement fixtures were proposed in the water conservation project shown below: