A one stop source for energy balances from all over the world is this International Energy Agency’s (IEA) website. When accessed first time it shows the World Energy Balance for 2010. You can choose to view either the balance (primary energy to final consumption) or a breakdown to consuming sector for more than 100 countries and even for some regions.

Here is a static image deliberately chosen (Georgia 2010). Data in thousands of tonnes oil-equivalent (ktoe).

But the best thing is to actually browse these diagrams and interactively discover and compare them.

You can also watch the Sankey diagram develop over time (movie time line 1973 to 2010 for some countries). Check out, for example, Republic of China’s growing hard coal use for energy generation. Many additional options are available, such as legend, node details as pie chart, dragging nodes.

Great tool IEA is providing to the community, making its vast energy data accessible in a clear, comprehensible and even playful manner.

Another interactive Sankey diagram for U.S. Energy Flows (similar to the one by Bloomberg’s David Yanofsky) also based on the LLNL Energy Sankey Diagram can be found on a web page of The National Academy of Sciences. Visitors can explore the energy mix and consumption.

Click here to visit web page and start exploring…

Flows are in quadrillion BTUs or ‘quads’. The footnote reads:

Hydro, wind, and solar electricity inputs are expressed using fossil-fuel plants’ heat rate to more easily account for differences between the conversion efficiency of renewables and the fuel utilization for combustion- and nuclear-driven systems. This enables hydro, wind, and solar to be counted on a similar basis as coal, natural gas, and oil. For this reason, the sum of the inputs for electricity differs slightly from the displayed total electricity output. Distributed electricity represents only retail electricity sales and does not include self-generation. The efficiency of electricity production is calculated as the total retail electricity delivered divided by the primary energy input into electricity generation. End use efficiency is estimated as 80% for residential, commercial, and industrial sectors, and as 25% for the transportation sector.

Nice graphics and a good idea to convey “What You Need To Know About Energy”.

David Yanofsky from the Bloomberg Newsroom advised me of a Sankey Diagram he did on U.S. Energy Flows. The diagram is based on the well-known Lawrence Livermore National Laboratory (LLNL) diagrams and shows the 94.6 quads (1 quad = 1 quadrillion BTUs) estimated energy use in the United States in 2009.

The Sankey diagram has a nice mouse over effect, that let’s the user explore the stream as they are highlighted in different colors. The nodes show the contribution from different carriers. Additional information is available when positioning the mouse over the orange bullets. This makes the diagram fun to explore…

In this image the lost energy is highlighted in red.

In the above screenshot the energy flows based on petroleum are shown in brown color, all other flows in light grey.

These are only two static screenshots, please go over to the Bloomberg site to see more.