Some of you might have noticed that I tend to get somewhat excited when I discover Sankey diagrams in other languages.

Here is one I dug out on this webpage of the Tsuji Labs at Osaka University in Japan, and it has the honor to be the first one presented on this blog in Japanese!

The diagram shows the “energy flows” (エネルギーフロー) as relative values for the year 1993 only. On the left side we can see that more than 80% of the energy consumed in Japan were produced from imported fuels (輸入), while only 17.8% came from domestic production (国内生産). The quantities are broken down into the different types of fuels, such as crude oil (原油, 46,1%) , natural gas (天然ガス, 10,5%) or hard coal (石炭, 16,4%). The right side of the diagram shows the consumption sectors, with industry (31%), residential (16,9%) and transport (15,6%).

Losses are at 29% which seems relatively low, if you compare to similar Sankey diagrams from the U.S. But then I am not sure if they accounted for the losses in the same way for this diagram.

There are these two other similar Sankey diagram thumbnails on that site, and my guess is that they represent different energy scenarios, considering renewable energy sources, as an option to reduce dependency from imports. Maybe someone who can read and understand more Japanese than I do wants to comment?

4 Responses to “Energy Sankey Diagram for Japan”

  1. Sankey Diagrams » Blog Archive » Energy Balance for California Says:

    [...] This way of presenting the energy balance seems to develop as a kind of standard for representing energy flows for a state or country. Other examples can be seen here: Japan, [...]

  2. Sankey Diagrams » Blog Archive » Floating 3D Sankey diagram Says:

    [...] have shown similar diagrams for California, Japan, Sri Lanka, Scotland and the U.S. before. In these national energy balances the various energy [...]

  3. Sankey Diagrams » Blog Archive » Canadian Energy Flows Says:

    [...] have featured similarly structured diagram for other countries here before: Japan, Scotland, Ireland, and the United [...]

  4. Sankey Diagrams » Blog Archive » Sankey for Energy Flows in Spain Says:

    [...] out simiular diagrams for Japan, Scotland, Ireland, Canada, United States. Posted by phineas October 1st, 2008 Filed in Samples [...]