CX-007699: Categorical Exclusion Determination

Abengoa Solar Inc. - High Efficiency Solar-Electric Conversion Power Tower CX(s) Applied: A9, B3.6 Date: 12/08/2011 Location(s): Colorado, Massachusetts Offices(s): Advanced Research Projects Agency-Energy

Office of NEPA Policy and Compliance

December 8, 2011
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Abengoa Solar Inc. - High Efficiency Solar-Electric Conversion Power Tower
CX(s) Applied: A9, B3.6
Date: 12/08/2011
Location(s): Colorado, Massachusetts
Offices(s): Advanced Research Projects Agency-Energy

Funding will support development of a high efficiency solar-electric conversion power tower that utilizes a novel phase change material architecture to enable low cost, fully dispatchable or base load solar energy generation and thermal energy storage. This objective will be accomplished through a two-phased project. The objective of Phase I is to design, test, and optimize critical system components in order to develop a robust, efficient, low cost technology. The objective of Phase /I is to rollout this design as a small scale prototype tower. As testing facilities and methodology have not been identified for Phase /I at this time, this determination covers only the work to be performed in Phase I.