‘De onde vem a nossa luz?’ Where does our electricity come from? The below infographic by Joaquim Guerreiro with text by Ricardo Gurreiro was published on April 22, 2009 in the Portuguese daily ‘Público’ (PDF).

The composition of energy sources is shown with Sankey-like green bands instead of a pie chart. 24% of the energy is from natural gas, 20% from coal. 18% is imported energy and 12% from hydro power.

The other elements of the infographic and the text describe how the production pattern changes from years rich in precipitation, when hydro can be up to 33%, compared to dry years where it accounts for less than 10% of the electricity production.

Data is for 2008. The overall consumption of electric energy is kind of difficult to detect: 51.125 GWh in 2007.

An online version of this infographic (without the Sankey diagram) is available at the Público website too.

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