The wind is always blowing somewhere in Europe: A decade of evidence for continental-scale renewable baseload

Wind power is intermittent at any single location—but it is always blowing somewhere across a continent. Here we test this premise using a decade of actual generation data from 29 European countries (2015–2024), the longest operational record analyzed to date. Unlike reanalysis-based studies, operational data capture curtailment, maintenance outages, and evolving fleet composition—effects invisible in simulated output. Aggregated European wind production never fell below 5.5 GW (1.8% of 2024 installed capacity), and geographic diversification reduced wind production variability by a stable ~48%. Yet Europe is failing to harness this potential. Although installed capacity doubled, the guaranteed baseload floor barely grew—a 2.1% conversion rate—because new capacity concentrated in already-correlated Northwestern Europe rather than in weakly correlated regions like Iberia and Scandinavia. Adding solar raises the floor by 61% and, more importantly, cuts battery storage costs by 81–93%. These findings identify geographic diversification as a highly effective but largely untapped reliability mechanism for wind energy. Yet even under optimal siting, the wind baseload floor remains at just 3–5% of installed capacity, covering only a small fraction of demand; a reliable zero-carbon grid requires wind alongside battery storage and firm clean generation.