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ever-greenenergy.com <br />RCC Thermal Energy Solution Options <br />Groundwater remediation system (TGRS) <br />•13% of total site cooling load and 30% of total site <br />heating load <br />•Lowest cost and requires the least amount of land area <br />•Assumes current location but can also work if relocated <br />Closed-loop ground heat exchangers <br />•Second lowest cost and land area <br />Geothermal wellfield <br />•Highest cost and land area <br />Closed-loop ground heat exchanger <br />Source: Darcy Solutions <br />Geothermal well <br />Source: Oberlin College <br />Technology Type <br />TGRS Closed Loop HE Geothermal <br />Cost per Ton of Cooling $/Ton $2,420 $5,000 $15,000 <br />Cost per MMBtu/hr of Heating $/MMBtu/hr $200,000 $830,000 $1,250,000