Advanced transmission technologies.

Defines "advanced transmission technologies" as software or hardware technologies that increase the capacity, efficiency, reliability, or safety of an existing or new electric transmission facility. Provides that in any integrated resource plan (IRP) filed with the Indiana utility regulatory commission (IURC) after December 31, 2025, an electric utility that owns or operates a transmission or distribution system must include a description of the potential use of, or investment in, one or more advanced transmission technologies to enable the electric utility to safely, reliably, efficiently, and cost effectively meet electric system demand. Provides that in any IRP filed with the IURC after December 31, 2029, an electric utility that owns or operates a transmission or distribution system must include a description of the electric utility's transmission and distribution systems, as specified by the IURC. Requires the IURC to conduct a study to evaluate the potential use or deployment of advanced transmission technologies by public utilities. Sets forth specific topics that the IURC must evaluate as part of the study. Requires the IURC to include in its 2026 annual report the commission's findings with respect to the topics evaluated in the study. Provides that advanced transmission technologies qualify as eligible transmission, distribution, and storage system improvements for purposes of the statute that authorizes a public utility to recover eligible costs incurred in connection with investments made in such improvements.