Duck Curve
The duck curve describes the shape of net demand (demand minus solar and wind output) across a day on a grid with a lot of solar power: it dips around midday as solar output peaks, then rises sharply in the evening as the sun sets and people get home. Drawn out, it resembles a duck's back and neck; the steep evening rise is the operational challenge, because other generation has to increase output quickly to cover both the loss of solar and the evening peak in demand.
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Cite this page
World Power Monitor. (2026). Duck Curve: What It Means. https://worldpowermonitor.com/glossary/duck-curve/
World Power Monitor. Duck Curve: What It Means. Data as of 2026-09-21. https://worldpowermonitor.com/glossary/duck-curve/
@misc{wpm_glossary_duck_curve_2026,
title = {{Duck Curve: What It Means}},
author = {{World Power Monitor}},
year = {2026},
note = {Data as of 2026-09-21.},
url = {https://worldpowermonitor.com/glossary/duck-curve/}
} Permalink: https://worldpowermonitor.com/glossary/duck-curve/
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