Texas Clean Energy Project (TCEP), Ector County, Texas

The final supplement analysis evaluates the potential environmental impacts associated with changes made to the project design after the record of decision was issued on September 22, 2011 (76 FR 47579). As a result of the supplement analysis, DOE has determined the polygen plant reconfiguration and new options for the TCEP would not constitute a substantial change in action previously analyzed and would not present any new circumstances or information relevant to the environmental concerns and bearing on the previously analyzed actions or impacts, within the meaning of 40 C.F.R. 1502.9(c) and 10 C.F.R. 1021.314. Therefore, DOE has determined that a Supplemental EIS is not required.