Incentives that go against the goal of reducing greenhouse gas (GHG) emissions have increased again after 2021, primarily due to extensive emergency measures introduced in response to rising energy prices. Excluding these temporary measures, the level of such subsidies in 2023 did not change significantly compared to 2020, with their value increasing by approximately 5.7%.

In 2023, energy efficient district heating (DH) systems, i.e. systems that meet one of the criteria defined in Article 50 of the Act on Energy Efficiency, produced 87,7% of all heat in DO systems, which is the highest value in the observed period. The total share of heat from renewable energy sources (RES) and waste heat amounted to 21,2% in 2023. It increased by 0.5 percentage points compared to the previous year, and by 5.5 percentage points compared to 2016.

According to the data for 2023, GHG emissions per unit of electricity produced amounted to 166 gCO₂/kWh. In the period 1992–2023, the intensity of GHG emissions decreased by 62,4%. Compared to the EU-27 average, intensity of GHG emissions in Slovenia in 2023 was 19,8% lower.

Energy efficiency in industry improved significantly between 2005 and 2023, with a 43% increase in 2023 compared to 2005. The chemical industry, machinery and equipment manufacturing, non-ferrous metals, and paper manufacturing contributed the most to the improvement, while steel production and non-metallic mineral products contributed the least.

Over the past decade, Slovenia has significantly improved its Eco-Innovation Index, mainly due to the growth in scientific publications, but it still remains slightly below the EU average, as the number of patents and exports of environmental goods and services has declined. Despite this progress, the gap with the EU stood at 4.7% in 2024.

Index includes 12 indicators from five thematic areas. Slovenia is ranked as an average eco-innovation performer. The target value for Slovenia has not been set.