Energy Flows Germany 2018

Energy consumption in Germany is tracked by AG Energiebilanzen (Working Group on Energy Inventories) and a Sankey diagram is published annually. This is the latest one for 2018 featured on their website.

And again, it leaves me disappointed… Why does such a prestigious group as AGEB, that has been in the business of producing energy inventories since 1990 and energy flow diagrams at least since 2013, if not longer, produce Sankey diagrams that are not to scale?