Home War Defense: why wind turbines disturb radars and worry armies

Defense: why wind turbines disturb radars and worry armies

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The proliferation of wind farms helps to implement the energy transition, especially in light of the rise in fossil fuel prices since the beginning of the conflict in the Middle East. Apart from debates on the aesthetics and noise pollution of wind turbines, another element acts as a barrier to their installation in large numbers. The blades of wind turbines disrupt radars, including those used by the military.

While rotating, they create what is known as the Doppler effect, which refers to the change in frequency of waves as one approaches. This can interfere with radar systems, as reported by BFMTV. Additionally, their metallic structure reflects electromagnetic waves, creating a “shadow zone” for radars. Finally, wind turbines can also obstruct their line of sight. In order to address this challenging situation at a time of escalating global conflicts, several strategies are being adopted in Europe.

### Context:
– The discussion is about how wind turbines can disrupt radar systems due to the effect of their rotating blades.

### Fact Check:
– The statement mentioned in the text about a decree formalizing the power of the army for wind farm installation by August 2025 is inaccurate and appears to be fictional.

The UK is set to spend millions of pounds

In France, permission from the military is required to install a wind farm within approximately 70 km of a military radar. Several construction projects have already been blocked for these reasons. The army’s control over wind farm placement was formalized by a decree in August 2025. However, this does not promote the development of green energy. Thus, the UK has made a different choice. According to reports from The Telegraph, the British military will spend £95 million (approximately €111 million) to upgrade its air defense system. New radar technologies are expected to be implemented by 2029, according to the British Ministry of Defense and the Department for Energy Security and Carbon Neutrality.