How a total splits over time.
import { StackedArea } from "diagrammatic";A grid operator's dashboard shows the day's generation stacked by source, because demand must always equal the top edge. This is a sunny weekday in spring.
Illustrative data. Spring weekday, one control area. Gigawatts at the hour.
Solar swells through midday and gas fills the morning and evening shoulders around it. Demand peaks at 40 GW at 20:00, above the midday 37 GW: solar is already gone, so gas has to climb back. Nuclear is a flat floor; wind ignores the sun.
- Use it for
- A total and its parts moving together through time.
- Watch out
- Middle bands ride on wobbly baselines; only the bottom band and the total read precisely.