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<br /> <br />16 <br /> <br />Figure 8. Aquifer thermal energy storage process during the cooling season. <br />ATES is generally more cost-effective than traditional closed-loop geothermal wells or in-ground heat <br />exchangers, with estimated costs of $6,000 per ton of cooling and $500,000 per MMBtu/hr for heating. <br />While ATES presents a potential energy resource for RCC, the potential negative impacts on the operation of <br />the groundwater remediation system were deemed too risky and this technology was not modeled as a <br />viable option. <br />4.2.5. PRODUCTION SUMMARY <br />RCC is well suited for a district energy system that incorporates multiple geothermal and ground source <br />energy solutions. This system could combine the groundwater remediation system (TGRS) with another <br />ground-source technology, both connected to a district energy network. This approach offers source and <br />loop redundancy, as well as opportunities for future expansion and increased capacity. <br />