Title: Microsoft Oxford Data Center

Update as of March 2016: Following the Public Comment Period and Hearing of July 2015, Microsoft submitted a revised permit application. The revisions are currently under review. Upon a completeness determination, Ecology will provide an additional public involvement opportunity for review and comment of the requested permit revisions. When completed, the Oxford Data Center will contain four Phase 1 activity zone (AZ) buildings designated AZ-4A, AZ-4B, AZ-4C, AZ-4D; four core network room (CNR) buildings; an administrative building; and four phase 2 AZ buildings designated AZ-3A, AZ- 3B, AZ-3C, AZ-3D. Building construction for the Phase 1 generators and cooling towers began before the end of 2014. Construction of Phase 2 is expected to begin within 18 months after the start of generator commissioning for Phase 1. Project Oxford Phases 1 and 2 will have thirty-two (32) Caterpillar Model 3516C-HD-TA diesel powered electric emergency generators in the activity zone buildings with a power rating of 2.5 Mwe per generator, four (4) Caterpillar Model 3516C-TA diesel powered electric emergency generators in the CNR buildings with a power rating of 2.0 Mwe per generator, and one (1) Caterpillar Model C27ATAAC diesel powered electric emergency generator in the administrative building with a power rating of 0.75 Mwe. The engines are equipped to meet Tier 1

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  • Microsoft Corporation

  • Industrial Emitters

  • Emissions Control


  • Data Center






  • Permit