BEFORE THE PUBLIC UTILITIES COMMISION OF NEVADA

BEFORE THE PUBLIC UTILITIES COMMISION OF NEVADA Microsoft Corporation (Microsoft) intends to submit an Application for two Permits to Construct the 345/34.5-kilovolt (kV) RNO12 Substation (the Project). The Project is located entirely on private lands in Storey County, Nevada. This request for two permits to construct will be filed with the Public Utilities Commission of Nevada (Commission) pursuant to the Utility Environmental Protection Act (UEPA) under Nevada Revised Statutes (NRS) 704.870(1) and Nevada Administrative Code (NAC) 703.423. NOTICE OF AN APPLICATION FOR TWO PERMITS TO CONSTRUCT UNDER THE PROVISIONS OF UEPA FOR APPROVAL BY THE COMMISSION Notice is hereby given to persons residing in the municipalities in which the utility facility to be constructed will be located. Microsoft is proposing to construct the Project under two Phases, as detailed below. Phase I – Grading and other early work site preparations will be completed under Phase I of the Project. Microsoft will contract with construction contractors to conduct all site preparations across the Project Area prior to construction of the utility facility described under Phase II below. Phase I will include rough and fine grading of the Project Area, grading related infrastructure, soil stabilization features, access roads, walls with foundations and enclosures, and fencing. Phase II – The RNO12 345-kV/34.5-kV substation will be constructed under Phase II of the Project. Microsoft will construct, own, and operate the Phase II utility facility. The purpose of the RNO12 345-kV/34.5-kV substation is to deliver electric service for an anticipated Microsoft owned and operated datacenter for increased cloud storage. The content of the UEPA Application will include a description of the proposed facilities requiring two permits to construct from the Commission and its location. The UEPA application will be filed under and governed by the provisions of the UEPA. A copy of the Application will be available on the Commission's website following Microsoft's filing of the Application. Protests and written comments about the granting of the UEPA application must be filed with the Commission as provided by law. DATED July 22, 2026. MICROSOFT CORPORATION July 24 2026 LNVS0562916