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Economic Analysis Description <br /> The proposed configuration was modeled using the DOE-2 eQUEST simulation engine. The building <br /> construction, schedules, and utility rates were all identical to the baseline simulation. The simulation <br /> results showed reduction in both the energy consumption and demand. Figure 4 shows the monthly <br /> breakout of the estimated electric and natural gas costs for the three buildings. The monthly energy usage <br /> and costs for the proposed HVAC System are shown in Table 5 as a comparison to the monthly <br /> consumption as seen in the baseline system. <br /> 53,500 -- ----- ------ <br /> � <br /> � <br /> $3,000 � _........ _........ __ <br /> � <br /> i <br /> i <br /> 52,500 -T_ i <br /> i I <br /> i ; <br /> � <br /> 52,000 a <br /> _......... _.. _ __ _..._. � <br /> i <br /> i <br /> $1,500 _ _ _ __ __ _ _ <br /> ( i <br /> 51,000 �-- _ _. _ � <br /> i <br /> � <br /> SSQO j— --- — _.._ <br /> i <br /> � <br /> SO , . _� ;_. ,_._ _ � I <br /> JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC <br /> ■Xcel Ener�y Electric Charges ■Natural Gas Charges <br /> Figu�e 4. Geothermal HV.9 C w/HX Estimated Annual Energy Expense <br /> The capital costs include equipment, installation and engineering fees. The equipment and installation <br /> estimates were provided by UMR Geothermal and are included in the additional information section <br /> following the report. <br /> 005.10.01 Page 11 of 18 City of Orono <br /> May 28,2010 Geothermal HVAC Feasibility Study <br /> engineers � consultants � commissioning <br /> MEP Associates,LLC�7607 Equitable Drive,Eden Prairie,MN 55344�phone:952.224.4488 fax:952.224.4489�www.mepassociates.com <br />