Earth Day

22 April, Earth Day

The share of electricity generated from renewable sources is increasing, while both the quantity and share of CO2 emissions from electricity, gas, steam and air conditioning supply are decreasing. In 2022, they accounted for 27% of total CO2 emissions generated that year, 14 p.p. less than in 2013.

  • 17 April 2025 at 10:30
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Earth Day is celebrated every year on 22 April. The theme of this year's 55th Earth Day is "Our Power, Our Planet", which highlights the collective power of individuals and communities to move towards positive change, and focuses on promoting a global transition to renewable energy sources, with the goal of tripling global clean electricity production by 2030.

The amount of electricity from solar and wind is on the rise

Almost half of Slovenia's energy needs are covered by imports; in 2023, the share was 48%. The structure of energy supply is dominated by petroleum products (34%), followed by nuclear energy (23%) and energy from renewable sources together with hydropower (slightly less than 21%). In terms of gross final energy use, Slovenia exceeded 25% of energy from renewable sources in 2023 for the first time (without using the statistical transfer mechanism) reaching 25.1%.

In Slovenia, the most electricity in 2023 was produced by the nuclear power plant and hydro power plants (35% each), while 23% of electricity was generated by thermal power plants, and just under 7% by solar and wind power plants combined. This share has been increasing in recent years; in 2014, it was just over 1%.

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CO2 emissions from transport are increasing

The production of electricity, heat and steam from fossil fuels contributes significantly to greenhouse gas emissions. In 2022, electricity, gas, steam and air conditioning supply generated 3.5 million tonnes or 27% of CO2 emissions. The share decreased over the ten-year period (2013–2022). In 2013, this sector generated 5.8 million tonnes or 41% of total CO2 emissions generated in that year.

On the other hand, the quantity and share of CO2 emissions originating from road, water and air transport are increasing. In 2013, all forms of transport generated 4.3 million tonnes of CO2 emissions (30% of the total), while in 2022 the amount was 5.4 million tonnes or 43% of the total.

The total amount of CO2 emissions is declining since 2017; in the last observed year (2022) it amounted to 12.7 million tonnes, which is 3% decline over the previous year and 10% less than in 2022.

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Amount of environmental taxes collected by the state is increasing


In 2023, Slovenia collected almost EUR 1.8 billion from environmental taxes. The largest share came from energy taxes, which primarily include excise duties on energy products and other taxes due to CO2 pollution; EUR 1.5 billion or 81% of all environmental taxes was collected for this purpose. Transport taxes contributed EUR 210 million or 12% of the total, while taxes on pollution and the use of natural resources amounted to EUR 56 million or 3% of the total.

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Almost half a billion euros invested in environmental protection

EUR 474 million was invested in environmental protection in 2023, which is 17% more than in 2014. During that period, current expenditure for environmental protection increased by 105% and amounted to slightly more than EUR 1 billion.

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When making use of the data and information of the Statistical Office of the Republic of Slovenia, always add: "Source: SURS". More: Copyright.