CX-270121: Materials and Fuels Complex (MFC) Substation Transformer Refurbishment

Substation 11 at the Materials and Fuels Complex (MFC) and building MFC-758 were constructed in the 1950's. The two transformers located in the switchyard are reaching the end of their expected design life. Failure of these transformers could result in long term power outages at nuclear and radiological facilities which would require back-up generators to provide power. In addition, the transformers are not adequate to support anticipated future growth and electrical load for MFC and the Transient Reactor Test Facility (TREAT). The proposed action would remove and replace the transformers with two new, larger transformers to accommodate growing facility loads. In addition, the switchgear in MFC-768 is not adequately sized to distribute power provided by the new transformers, so a new 13.8 kV powerhouse with new switchgear would be constructed.