Why this replaces a stacked bar: in a stacked bar, only the first segment shares a common zero baseline across every row — that’s why “fossil fuels” reads cleanly in the original chart. Every segment after it starts wherever the previous one ended, so wind, hydro, solar, nuclear and biofuels can’t be compared row-to-row. Splitting each source into its own zero-baselined panel fixes that for all seven at once.