Relating to the interconnection of the ERCOT power grid to grids outside the ERCOT power region.

HB 199 allows Texas utilities (including transmission companies, municipal utilities, and electric cooperatives) to build infrastructure connecting the ERCOT power grid to outside power systems, enabling them to purchase wholesale electricity from other regions. The law creates a process requiring the Public Utility Commission to approve interconnection applications and mandates the Commission to identify potential connection points by September 1, 2027. It applies to both synchronous (direct) and non-synchronous (indirect) grid connections, with federal approval requirements for certain interconnections. The bill does not change electricity rates, generation policies, or existing grid operations - it only establishes a legal framework for future interconnection.