Duration is the new measure of scarcity
The study defines a flash energy drought as wind or solar generation falling quickly and remaining low for an extended period. Even under the low-emissions SSP1-2.6 scenario, the model calculates duration increases of 25.6% for wind, 29.8% for solar and 155.7% for compound events. The figures come from simulations conditional on climate and energy-system assumptions.[1]
That duration changes the arithmetic of closing a supply gap by adding capacity alone. Because the study models the events alongside unserved energy, flexibility requirements and electricity costs, the pressure concentrates in how long low output persists. The same megawatt does not provide the same resilience under a different weather pattern.[1]
The map becomes a grid decision
The researchers find that about 70.8% of global wind-solar capacity is exposed to an increase in event frequency or duration. Risk still varies by plant, and that variation makes siting part of climate resilience. A resource map now has to measure annual yield together with prolonged, simultaneous low output.[1]
Strategic siting can reduce exposure, but the study's boundary is that its effectiveness depends on climate ambition and the realization of technical potential. The decision therefore joins the next plant's coordinates to an advance calculation of the flexibility required by a portfolio spanning different weather regimes. The observable signal is whether new projects disclose energy-drought duration alongside expected average output.[1]