| Year | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
|---|---|---|---|---|---|---|---|---|---|
| Specification | |||||||||
| Fossil energy |
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| Hard coal |
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Brown coal![]() |
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| Naturel gas |
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| Other fossil energies (oil, others) |
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| Nuclear energy |
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| Renewable energy |
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| Biomass and biogas |
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| Wind energy |
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| Hydroelectricity |
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| Solar energy |
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| Other sources of renewable energy |
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| Other sources and unidentified sources |
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