Relating to a customer guide to home solar energy devices.

HB 1640 requires Texas' Public Utility Commission to create and maintain a customer guide for homeowners considering home solar energy installations. The guide must provide practical information, including questions to ask utilities about net metering and rebates, roof design considerations for efficiency, and financial details like tax credits and maintenance costs. Electric utilities and providers must link to this guide on their websites and include it in customer bills for at least one year after publication. The bill directly affects homeowners researching solar options by standardizing access to clear, actionable information from the state. It takes effect September 1, 2025, if passed.