IA HSB317

Establishes uniform statewide standards for local authority approval of wind energy conversion facilities, solar energy conversion facilities (over 100 kilowatts), and battery energy storage systems proposed after January 1, 2025

Sets maximum setback requirements local authorities may impose: wind turbines must be sited at two times their total height from abutting dwellings/community buildings, and 1.1 times height from nonparticipating property lines, overhead utility lines, and roads; solar facilities limited to 50-100 feet setbacks depending on structure type

Allows local authorities to implement additional standards including shadow flicker limits (no more restrictive than 30 hours per year), sound limitations (maximum 47 decibels at dwellings), drainage repair requirements, and compliance with national electric safety and fire protection codes

Requires decommissioning plans with financial assurance reaching 100% of estimated costs by year 15 of operation; facilities presumed abandoned after 24 consecutive months without generating energy, triggering removal obligations

Mandates local authorities approve, modify, or deny facility applications within 120 calendar days; prohibits local authorities from banning renewable facilities in agricultural or industrial zones, limiting projects based on corn suitability ratings, or capping total project acreage within their jurisdiction