IA HF2081

Wind energy conversion facilities with generating capacity greater than 100 kilowatts constructed on or after July 1, 2026, must have obstruction lights controlled by an aircraft detection lighting system (ADLS)

Existing wind facilities constructed before July 1, 2026, that lack ADLS-controlled obstruction lights must retrofit to comply by January 1, 2028

Aircraft detection lighting systems automatically activate obstruction lights when aircraft approach and keep them on until aircraft exit the coverage area, or during system failures

Violations carry civil penalties of $100 to $2,500 per violation per day, with penalties deposited into the state general fund

Exemptions apply for facilities where ADLS is inappropriate due to terrain limitations, proximity to airports, visual flight rules, or military training routes