Total GHG emissions from the ETS sector increased by 9.3% in 2024 compared with the previous year, following six consecutive years of decline. The increase was driven by higher emissions across all groups, particularly in electricity and heat production and in manufacturing industries. Despite the increase, emissions remained among the lowest levels recorded over the observed period. At the EU level, a legally binding target has been adopted to reduce GHG emissions from the ETS sector by 62% by 2030 compared with 2005 levels.

Overall energy efficiency of final energy consumption improved by 30 % between 2005 and 2024. The industrial sector contributed the most to this improvement, followed by households, while the transport sector contributed by far the least. In 2024, energy savings compared with 2005 amounted to 1,724 ktoe, equivalent to 44 % of the final energy consumption of the industry, transport and household sectors.

By 2025, the implementation of energy efficiency (EE) and renewable energy measures (RES) in the public sector resulted in total annual energy savings of 365 GWh, and the total annaul CO₂ emissions reduction was 92 kt. Investment activity declined in 2025 due to the transition from one financial perspective to the other. In that year, energy savings amounted to 16.8 GWh and the CO₂ emissions reduction was 5.3 kt, which are the lowest levels recorded in the 2018–2025 period. No 2030 targets have been set for this indicator.

According to the data for 2024, GHG emissions per unit of electricity produced amounted to 175 gCO₂/kWh. In the period 1992–2024, the intensity of GHG emissions decreased by 60,1%. Compared to the EU-27 average, intensity of GHG emissions in Slovenia in 2024 was 4,6% lower.

The share of renewable energy sources (RES) in the use of fuels in industry amounted to 10,7% in 2024, which was 7.1 percentage points behind the annual indicative target value. The 2024 indicative target was thus not achieved. In order to achieve the target of 30% of RES in the use of fuels in industry in 2030, the share of RES will have to increase by 19.3 percentage points or by about approximately 3.2 percentage points per year.