In 2023, the energy reduction in the energy efficiency obligation scheme (EEOS) and alternative measure, t. i. Eco Fund programs, amounted to 1,445 GWh. A majority of the new savings, 65%, was this time achieved through the implementation of energy efficiency (EE) and renewable energy source (RES) measures within the EEOS, where a large gas-steam unit in a district heating plant was installed. The new savings were more than 200% higher than the target value for 2023.

One of the main reasons of mortality due to respiratory diseases is in Slovenia chronic pulmonary disease (COPD). The highest mortality rate due to respiratory diseases in Slovenia is in Podravska and Pomurska region and the lowest in Central-Slovenian region (2022–2024). Mortality due to respiratory diseases is decreasing; in the period 2017 to 2021 it decreased from 62/100.000 inhabitants to 43/100.000 inhabitants in the year 2024. This can be attributed to the “harvesting effect” of COVID 19.

Nutrient over-enrichment remains the key environmental challenge for lakes and reservoirs in Slovenia. For the assessment period 2014–2019, only 4 of the 11 lake water bodies achieved good or high ecological status. Recent annual data indicate no signs of improvement, and in some lakes total phosphorus concentrations are even rising. The main pressures are linked to human activities, especially inappropriate discharge of municipal wastewater, intensive agriculture in the catchments, and fisheries.

The values ​​of the parameters used to monitor the load of rivers with organic substances have decreased significantly since 1996. The observed decrease in organic load corresponds to the increase in the proportion of the population whose wastewater is treated in municipal and joint wastewater treatment plants. The load of rivers with nutrients varies significantly between river basins. The average nitrate values ​​in all river basins of the Danube river basin are higher than in the Soča and Adriatic river basins and above the values of the natural background.

The quality of bathing water along the Slovenian coast is excellent, which ranks Slovenia at the top among the EU countries.