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8.D. - Page 16 <br /> Figures 3 and 4 show the City's natural gas usage and cost with project estimates and presents <br /> another case for energy efficiency projects. Due to a pool closure, a number of energy efficiency <br /> projects, and a 25 percent drop in natural gas prices, the City's natural gas usage and cost <br /> dropped markedly between 2005 and 2010. Thus, a 15 percent energy reduction in half the <br /> existing facilities by 2020 could represent as much as a $93,823 reduction in annual natural gas <br /> costs from 2005, if natural gas were to remain at the 2010 price. <br /> Figure 3: Municipal Facilities Natural Gas Use (therms) with 2020 project estimate <br /> sso,000 <br /> 164,7 6 <br /> ;� 160,000 therms <br /> � 140,000 <br /> V 120,000 123,058 <br /> ? 100,000 113,829 <br /> therms therms <br /> � 80,000 <br /> � 60,000 <br /> m <br /> L <br /> � 40,000 <br /> m <br /> z 20,000 <br /> 0 <br /> 2005 2010 2015 2020 <br /> Year <br /> Figure 4: Municipal Facilities Natural Gas Cost ($) with 2020 project estimate <br /> $2so,000 <br /> � $200,000 $196,269 <br /> +� <br /> � <br /> c°� $150,000 <br /> � <br /> m <br /> C7 <br /> L $100,000 $110,994 <br /> 3 $102,446 <br /> +� <br /> m <br /> z $50,000 — <br /> $0 <br /> 2005 2010 2015 2020 <br /> Year <br /> It is evident from the previous figures that the City is making good progress on municipal energy <br /> efficiency, but it is not certain if this pace of progress will be able to offset future energy costs. <br /> By committing to energy efficiency in public facilities, the City creates a hedge against rising <br /> energy costs, positions itself to take advantage of renewable energy opportunities, and also acts <br /> 7 <br />