While a comprehensive investigation will take weeks to complete, today’s massive power outages across Spain and Portugal present compelling evidence of the inherent vulnerability in renewable-heavy grids and likely offer a stark lesson in the dangers of sacrificing grid stability on the altar of green energy. While officials scramble to restore power to millions and politicians inevitably deflect blame, the catastrophic failure aligns perfectly with warnings that power grid experts have been sounding for years: systems with high penetrations of solar and wind generation have diminished mechanical inertia and are inherently vulnerable to collapse.
