A bill for an act relating to rate-regulated public utilities, including rate proceedings, automatic adjustments, ratemaking principles, and integrated resource plans.

This bill establishes new rules for Iowa's rate-regulated public utilities (like electric and gas companies). It limits rate filings to once every 12 months unless approved early, requires general rate cases by specific deadlines (July 1, 2028, then every three years), and restricts automatic rate adjustments to costs outside the utility's control - capping adjustments within 10% of approved amounts. Utilities must also file integrated resource plans every three years (starting July 2026), including detailed 20-year analyses of energy sources and costs, while demonstrating compliance with approved energy efficiency plans. These changes aim to increase rate stability and transparency for utility customers.