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Annual Electric Consumption <br /> Monthly energy consumption and demand for the current configuration were taken from the December <br /> 2008 through November 2009 utility bills provided by the owner. The calibrated model monthly values <br /> were calculated based on occupancy rates and schedules as defined in the energy modeling analysis <br /> section. The monthly energy consumption, demand, and utility charges of the existing system are listed in <br /> Table 3. <br /> Annual Natural Gas Consumption <br /> Monthly natural gas consumption for the existing building was taken from the December 2008 through <br /> November 2009 utility bills provided by the owner. The calibrated model monthly values were <br /> calculated based on occupancy rates and schedules as defined in the energy modeling analysis section. <br /> The monthly natural gas consumption and utility charges of the existing system are listed in Table 3. <br /> Table 3. Energy Consumption of Existing System Model <br /> � � � � � � � , � <br /> � <br /> January 23,564 60.9 1,632 1,171 475 1,305 <br /> February 20,172 57.7 1,246 1,002 449 1,005 <br /> March 19,815 48.2 957 984 375 780 <br /> April 16,827 44.1 509 836 343 431 <br /> May 15870 57.9 181 788 451 176 <br /> June 17670 58.2 62 878 652 83 <br /> July 18878 60.1 49 938 672 73 <br /> August 18992 61.1 48 943 683 73 <br /> September 15652 51.7 65 778 578 86 <br /> October 15863 50.0 336 788 390 296 <br /> November 18128 46.9 791 901 365 651 <br /> December 22302 56.9 1342 1108 443 1,079 <br /> Total 223,733 61.1S/60.9W 7,218 11,115 5,876 6,038 <br /> 005.10.01 Page 8 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 />