A Nature Climate Change analysis describes fast-onset energy droughts: extended periods of weak wind and solar output. In its SSP1-2.6 scenario, the duration of compound events rises more sharply than either source alone, while strategic siting reduces exposure only under stated conditions.
The analysis calls a rapid and prolonged shortfall in wind and solar generation a flash energy drought. It also weighs electricity left unmet, the flexibility required and the resulting costs. The framing matters because a grid can face a shortfall even when its installed renewable capacity is large, if weather conditions suppress output for an extended period. It is therefore a reliability issue, not simply a capacity total.[1]
Under the SSP1-2.6 scenario, wind duration rises by 25.6 per cent. The solar estimate is 29.8 per cent, while compound events reach 155.7 per cent. The larger compound figure describes periods when both sources are weak together. It should be read as a scenario result, not as a calendar for any one electricity system or a forecast of a single outage.[1]
The report says strategic siting could reduce exposure to these shortfalls. Its effectiveness depends on climate ambition and on how much technical potential is actually realized. That leaves a practical distinction: selecting locations can help manage a modeled risk, but it is not presented as a substitute for the system choices needed to deliver that potential.[1]
