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

HB 838 allows Texas transmission utilities, municipally owned utilities, and electric cooperatives to build and operate facilities for connecting the ERCOT power grid to external grids. It requires the Public Utility Commission to approve interconnection applications and mandates that identified facilities must pursue synchronous interconnection with outside grids by 2027. The bill establishes new requirements for federal approvals and commission oversight while specifying a deadline of September 1, 2027, for identifying eligible transmission facilities. This directly affects entities managing Texas power infrastructure seeking to expand grid connectivity beyond ERCOT.