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Roseville Skating Center and City Hall <br />Feasibility Study September 23, 2007 <br />City Hall l Public Safety Building Energy Consumption (2006) <br />i iao,000 • -• - •• - -•------•-- -. . _. ... _. _. . <br />160,000 • -� <br />� 14D,d00 •I <br />� <br />� t2b,00(3 � - <br />W <br />� ��� . .I <br />Z 80,fl00 - � <br />� I <br />' s 6Cf,00D - - •-- <br />,V <br />40.000 � • <br />113 [°J—�- <br />:I: ��. ... __ . . . <br />' 4 <br />� Jan Feb Mar Apr May Jun Ju1 Aug Seg Oct Nov Dec <br />= � ��c. �k;+u�r �.— iaas ;� K�r�'h.� <br />Figure 9: This graph shows the monthly energy consumption of the City Hall / Public Sa�eQy <br />Building. <br />City Hall 1 Public Safety Building Energy Consumption (2006) <br />30t1,00f} <br />I 250.000 —.. ...- — -------- .� _ ._. � l <br />200,000 <br />15Ci.00D <br />100,00€} <br />5a,Ofif# <br />0 <br />Jan Feb Mar Apr May Jun JuF Aug Sep Oct Nov i?ec <br />� Elec (kWh} I� Gas (�kWh} <br />F�;�,�� ��' �nr.� g�n�ah hkaou�^� xhe en�r�y ��a�� f;{ ir� t�i�1 f�r :�;1 �.r!}� !��ii I��2�'aG S��s1�' �1��L�'�I� <br />Electricity consumption increases approximately 20,000 to 30,000 k�, per month in <br />May through September because of the increased cooling load. <br />3.4. Maintenance Garage <br />The Maintenance Garage uses electricity mainly to provide lighting and operate electric <br />motors. Only the office area and meeting rooms are provided with cooling and increase <br />electricity consumption 5% to 10% during the summer months. Gas consumption is <br />directly related to the space heating requirements of the building. <br />Geo-Xergy Systems Page 10 of 33 <br />