Relating to the authority of the Office of Public Utility Counsel to access certain data.

SB 1877 expands the Office of Public Utility Counsel's (OPUC) authority to access specific electricity market data from the Public Utility Commission, the ERCOT-certified organization, and electric utilities. The bill directly affects residential and small commercial electricity consumers by giving OPUC new data on reliability, generation resource adequacy, transmission planning, and system resiliency to better advocate for them. Key provisions require utilities and regulators to provide this data upon OPUC request, strengthening its ability to represent consumer interests in rate cases and disputes. The law became effective September 1, 2025, after being signed by the governor.