Why are wind turbines sometimes stopped when the wind is blowing?
Several situations can justify stopping a wind turbine:
Without a minimum wind (10 km/h), the turbine cannot be sufficiently activated to produce electricity. The rotor is then immobilized.
Beyond 90 km/h of wind, a device deliberately stops the operation of the wind turbine. This is both a safety measure and to avoid premature wear of the turbine's mechanical components.
During maintenance or repair phases, the rotor is immobilized.
The balance between production and electrical demand may (in rare cases) require a halt in the operation of wind turbines. This circumstance requires the conjunction of several factors: low demand, particularly high renewable electricity production (generally unpredictable) due to, for example, significant sunlight or winds, inability or difficulty in reducing fossil fuel electricity production...
