University City MO - Street Light Audit Report

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4.6.TW RANSFER COST OF LIGHTS LOCATED ADJACENT TO ASHINGTON UNIVERSITY PROPERTY Currently 132 street lights are located adjacent to property owned by Washington University. The next two option. Energy Reduction analyses not performed due to no overall energy reduction. The first scenario proposes transferring all costs of lights loc Washington University. TABLE 18 TRANSFER WASH U ALL COST ANALYSIS monthly yearly 5 years 10 years 20 years Savings of transferring all 132 "Wash U" streetlights at $18.81 per post top light $1,207.08 $14,484.96 $72,424.80 $144,849.60 $289,699.20 and 10.15 per cobra light estimated % savings: 3% approximate reduction in lighting cost The second scenario proposes transferring the costs of only the lights which are of the current street light policy to Washington University. TABLE 19 TRANSFER WASH U (300 FT) COST ANALYSIS monthly yearly 5 years 10 years 20 years savings of transferring 47 "private" streetlights proposed for reduction based on U City lighting policy - 300' max $440.33 $5,283.96 $26,419.80 $52,839.60 $105,679.20 distance at $18.81 per cobra and $10.15 per post top estimated % savings: 1% approximate reduction in lighting cost 4.7.AA CQUISITION OF LIGHTS FROM MEREN Purchasing the lights from Ameren is a long term energy and costThe energy cost for street lighting would be drastically reduced even without changing the bulbs/fixtures because the lights would fall under Ameren 6M* tariff instead of the 5M tariff. Not only would the Ameren bill be drastically reduced, it would give University City the option of using more energy than that currently offered by Ameren. Currently the most energy efficient bulb type that is offered byAmeren is a 100 watt 9500 lumen HPS. Ameren has not provided enough information to completely analyze the option of 31 Page