The mistakes of the U.K. and Germany this winter serve as a wakeup call for policymakers worldwide as they consider their own energy policies. The winter of 2025 has been brutal for Europe, exposing the severe flaws of its over-reliance on wind and solar energy. As temperatures plummeted, countries grappled with electricity shortages, soaring energy prices, and the grim specter of blackouts. In the United Kingdom and Germany, two countries that have positioned themselves as global leaders in the adoption of “renewable” energy, the dangerous gamble of prioritizing wind and solar power over reliable energy sources is leaving millions vulnerable...