In a historic shift, renewable energy sources have officially overtaken fossil fuels as the primary source of electricity in Europe. Wind, solar, and hydropower are now providing more energy to the continent than coal, oil, and natural gas combined. This milestone is the result of decades of investment in green energy infrastructure, as well as policy changes that have encouraged the adoption of sustainable energy sources. Countries like Germany, Denmark, and Spain have led the charge, building vast networks of wind turbines and solar farms that now dominate the landscape. The transition to renewable energy has not only reduced greenhouse gas emissions but has also created thousands of jobs in the green energy sector. However, the shift has not been without challenges. The intermittency of renewable energy sources requires new solutions for energy storage and grid management, issues that engineers and policymakers are working hard to address. Nevertheless, Europe’s commitment to renewable energy is a significant step forward in the global fight against climate change.