From the Document: "On May 1, 2020, President Trump issued Executive Order (E.O.) 13920, titled 'Securing the United States Bulk-Power System.' The E.O. states that it is protecting 'the security, integrity, and reliability of bulk-power system electric equipment used in the United States' from 'foreign adversaries' who are creating and exploiting vulnerabilities in the bulk-power system (BPS). In the E.O., the President 'declared a national emergency with respect to the threat' to the U.S. bulk-power system, with the goal of limiting the acquisition or use of 'equipment designed, developed, manufactured, or supplied by' entities subject to the control of foreign adversaries."
CRS Insight, IN11417
Congressional Research Service: https://crsreports.congress.gov/