French scientists discovered that turning off wind turbines at night reduces bat mortality fivefold. Every year in France, up to 60,000 bats are killed by wind turbine blades. The study makes it clear that it is wise to impose restrictions when the bats are most active: at night, when there is very little wind and high temperatures. Using this technique, energy loss is estimated to be between 10% and 15%. When optimizing constraints taking into account additional parameters such as rainfall, losses can range from 3% to 5%. As mentioned, some restrictions on electricity production have already been implemented in almost 50% of the 600 French wind farms. those. It's more about optimizing constraints. Energy today without VPN: max / site.