CX-004017: Categorical Exclusion Determination

High-Temperature Wire Insulations for Downhole Enhanced Geothermal System (EGS) EquipmentCX(s) Applied: B3.6, B5.1Date: 09/16/2010Location(s): Lafayette, ColoradoOffice(s): Energy Efficiency and Renewable Energy

Office of NEPA Policy and Compliance

September 16, 2010
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High-Temperature Wire Insulations for Downhole Enhanced Geothermal System (EGS) Equipment
CX(s) Applied: B3.6, B5.1
Date: 09/16/2010
Location(s): Lafayette, Colorado
Office(s): Energy Efficiency and Renewable Energy

Geothermal energy is a viable, environmentally-clean alternative energy source under development through the U.S. Department of Energy. Composite Technology Development, Inc. (CTD), proposes to provide high-temperature, high-voltage wire insulations to improve the reliability of downhole equipment necessary for commercial-scale geothermal energy production. In Phase III, Composite Technology Development, Inc. (CTD) will scale-up the processes for manufacturing high-temperature, insulated wires for use in geothermal and related applications. Specific tasks include: demonstration of commercial-scale wire manufacture, full-scale motor construction, high-volume manufacture of insulated wire, pilot-scale manufacture of electric submersible pump (ESP) motors, manufacture of commercial-scale quantities of motor wire, qualification of impregnation materials for motor applications, fabricate and test prototype motor windings, fabrication and testing of electric motors for hybrid, and program management/reporting. Once produced, CTD will work with manufacturing partners to produce and test prototype devices utilizing this technology.

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