The US Commerce Department has initiated a national security investigation into the import of wind turbines and components, which could lead to increased import tariffs, as reported by Reuters.

The probe, known as a Section 232 investigation, was opened on 13 August 2025 but only recently disclosed to the public.

The department has announced the addition of wind turbines to a product list facing a 50% tariff on aluminium and steel content.

With the investigation in progress, tariffs could potentially rise further on imported wind turbines.

The offshore wind industry, already contending with inflation and logistical challenges, faced additional difficulties when President Trump halted licensing on his first day of his second term of office in January 2025.

Trump has been vocal in his criticism of wind and solar energy since his inauguration, deeming them unreliable and overly reliant on Chinese supply chains.

The Commerce Department is now soliciting comments on the role of foreign supply chains in fulfilling US demand for wind turbines and the effects of foreign subsidies and trade practices on the industry's competitiveness.

The department's recent actions are part of a broader series of investigations assessing the national security implications of imports.

These include airplanes, semiconductors, pharmaceuticals, heavy trucks, copper, timber and lumber, critical minerals and drones.

In a related development, the United States Department of Agriculture (USDA) has announced a notable policy change, indicating that it will cease support for solar and wind projects on productive farmland.

This decision is in line with the broader perspective of President Trump's administration regarding renewable energy development.