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Renewable Energy

The share of energy from renewable sources in the gross final energy consumption in Slovenia is currently 22%. Slovenia is committed to increase the share of renewables in gross final energy consumption to 27% by 2030 and will need to significantly raise the level of ambition for 2030 to a renewable share of at least 37% to reach  Slovenia's contribution to the EU 2030 target for renewable energy.

Wood and other solid biomass account for the largest share (48%) among renewable energy sources in energy supply in Slovenia.  The largest part of wood is used for space heating in households and for district heating. Wood is followed by hydro energy with 36%. The shares of other renewable energy sources are smaller: biodiesel and biogas 7%, geothermal energy 4%, solar and wind 3%.

The potential to increase renewable energy in Slovenia is significant. Currently, more than 90% of the electricity from renewable energy sources is produced in hydro power plants. The biggest potential  for increasing share in renewable energy sources have solar and biogas energy.

Currently, the total hydropower capacity in Slovenia of the existing network of hydro power plants is 1.344 MW. After some years of stagnation, new projects are in development. The first in a row is new 28 MW hydro power plant, the last in the chain of hydroelectric power plants on the lower Sava River. New hydropower plants in the middle course of the Sava river in the total capacity of 300 MW are planned to be completed in 2030.

Slovenia has high solar potential and offers great potential for exploiting photovoltaic energy due to evenly spread solar irradiation. It is estimated that by 2040 the share of solar energy will be the highest compared to other renewable resources, In 2021, a total capacity of solar power units is about 400 MW. The target for 2030 is 1650 MW and for 2040 4400 MW. Energy experts estimate that Slovenia could consider a target much higher than 1650 MW in 2030 due to high solar potential. Solar power plants on infrastructure of hydro power plants are also coming up. The largest solar power plant in Slovenia with power of 6 MW will be built by the hydropower plant operator alongside the reservoir of 47 MW hydropower plant and will be connected to the existing hydroelectric power plant making it a hybrid power system.

Despite technical potential for installed wind electricity capacity of 600 MW, Slovenia currently has only two wind turbines (2.3 and 0.9 MW) and is near the EU’s very bottom in exploiting wind potential. The main obstacle for building new wind power plants are NGOs and locals, who oppose the construction due to potential impact on environment. The Slovenian government is working on national zoning plans for eight wind farms as part of efforts to increase the share of energy produced from wind energy.


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