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Dataset | 29 April 2016

Sankey diagram dataset - annual data

Data on energy flows for building a sankey diagram for energy by type of fuel. Sankey diagrams provide an overview of the main energy flows and how they contribute to the global energy balance of a certain territory. The nrg_sankey dataset takes its data from the "Complete energy balances - annual data (nrg_110a)" dataset.

There are some limitations on how some of the balance aggregates can be shown. For this reason, some balance aggregates have to be displayed in a different form and others cannot be displayed at all. This is mainly because negative flows cannot be represented visually.

A Sankey diagram is a graphic illustration of flows - like energy, material or money - where they can be combined, split and traced through a series of events or stages. The width of each stream represents the amount of material or energy in the flow. Sankey diagrams , which are typically used to visualize energy transfers between processes, are named after the Irishman Matthew H. P. R. Sankey, who used this type of diagram in a publication on energy efficiency of a steam engine in 1898

Specifically for bioenergy, data on primary production of biofuels are borken down by type of fuel (Biogas, solid, biogasoline, biodiesel, biokerosene…)

The Sankey tool is accessible from the following link: http://ec.europa.eu/eurostat/cache/sankey/sankey.html?geo=EU28&year=201….

Data are obtained from the National Administrations competent for energy statistics. . Data collection is based on a pre-filled joint annual energy questionnaires sent to countries. This sending of emails is usually performed by the International Energy Agency. Countries provide new data for the latest reference year and possible revisions for historical time periods. Subsequent validation issues might results in changes in data. All data transfers to Eurostat has to come via Single Entry Point of data, which is currently implemented as eDAMIS (electronic Data files Administration and Management Information System).

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