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<br />4' <br /> <br />TRACE@ 700 Economic Summary <br />By Karges Faulconbridge, Inc <br /> <br />Project Information <br /> <br />Weather file Minneapolis/St. Paul, Minnesota <br />Project Name 06-089 <br />Location Elk River, MN <br />Building Owner <br />User <br />Company <br />Comments <br /> <br />Alternative 1 - - Geothermal-62-2001n <br />Alternative 2 - - RTU-62-2001n <br />Alternative 3 - - Geothermal-62-2001n-30%lncrease <br /> <br />Economic Summary <br /> <br />Alternative Installed First Year Final Year First Year Final Year Life Cycle <br />Number Cost Uti!.Cost Uti!. Cost Maint. Cost Main!. Cost Cost <br />1 446,550.50 19,146.18 19,146.18 0.00 0.00 636,381.33 <br />2 298,930.50 27,276.40 27,276.40 0.00 0.00 580,179.74 <br />3 452,750.53 19,506.76 19,506.76 0.00 0.00 646,156.46 <br /> <br />Economic Comparison of the Alternatives <br /> <br />Alt. - Alt. <br />1 - 2 <br />3 - 1 <br />3 - 2 <br /> <br />First Cost <br />Difference <br />147,620.00 <br />6,200.03 <br />153,820.03 <br /> <br />Simple <br />Payback <br />18.2 yrs <br />Does not pay back <br />19.8 yrs <br /> <br />Net Present <br />Value <br />-56,201.59 <br />-9,775.14 <br />-65,976.72 <br /> <br />Internal <br />Life Cycle Rate of <br />Payback Return <br />Does not pay back 6.2 % <br />Does not pay back Does not pay back <br />Does not pay back 5.6 % <br /> <br />Monthly Utility Costs <br /> <br />3200 <br />3000 <br />2800 <br />2600 <br />2400 <br />2200 <br />2000 <br />1800 <br />1600 <br />1400 <br />1200 <br /> <br /> <br />o Alt1 <br />. Alt2 <br />. Alt3 <br /> <br />1}<:\ 1}<:\ <br />~v &v <br />)'lj <<~ <br /> <br />0:- <br />~ <br />~ <br /> <br />i..~ <br />~ <br /> <br />~'l>'::" <br /> <br />~0 <br />)V <br /> <br />~.::., ~c} ,^0~ IO~ !/;- !/;- <br />'S .,~ ~y ~ ~ ~ <br />'?-" ~'li O(J ~'li c,'li <br />c:i~ ~o <::)'li <br /> <br />Project Name: 06-089 <br />File Name: C:\CDS\TRACE700\Projects\06-089-ERL-6-7 <br /> <br />TRACE@ 700 v6.0 calculated at 02:05 PM on 07/10/2006 <br />Economics Summary Page 1 of 2 <br />