In 2022, greenhouse gas (GHG) emissions from sources according to the Regulation (EU) 2018/842 increased by 3.2% compared to the previous year, but in 2023 they decreased by 4.4% and were 7% below the annual target set by Regulation, thus achieving the indicative annual value. The 2030 target set by the National Energy and Climate Plan from 2020 (NECP 2020) is more ambitious and in 2023 the indicative annual value set by the NECP 2020 was not achieved, lagging behind by 0.5 percentage points.

In 2021, the energy reduction in the energy efficiency obligation scheme (energy amounted to 610.4 GWh. A bigger share of the savings, 57%, was achieved through the implementation of energy efficiency (EE) and renewable energy source (RES) measures within the Eco Fund programs. The annual target value was exceeded by a third. For 2022, according to preliminary data, the achieved energy savings are estimated at 700.8 GWh, which is 15% more than the previous year and 53% above the target value.

Final energy consumption amounted to 4,491 ktoe in 2023 and decreased by 5 % compared to the previous year. There was a decrease in all sectors, with the exception of other use. Final energy consumption was 380 ktoe (- 7.8%) lower than the 2023 indicative target value from the National Energy and Climate Plan from 2020 (NECP 2020) and 282 ktoe (- 5.9 %) lower than the value from the National Energy and Climate Plan from 2024 (NECP 2024). The indicative annual target was thus achieved. In the period 2000‒2023, final energy consumption decreased by 1 %.

Primary energy consumption amounted to 6,071 ktoe in 2023 and decreased by 4.1 % compared to the previous year. The decrease was a result of a decrease in the final energy consumption, while electricity production was higher compared to 2022, mainly due to better hydrological conditions. Primary energy consumption was 604 ktoe (- 9%) lower than the indicative target value for 2023 from the from the National Energy and Climate Plan from 2020 (NECP 2020), and 364 ktoe (- 5.6%) lower than the value from the National Energy and Climate Plan from 2024 (NECP 2024).

In 2022, taking into account only the production of energy from RES in Slovenia, Slovenia achieved a 22.9% share of RES in gross final energy consumption. To achieve a binding 25% national target share of RES under the Directive 2009/28/EC, Slovenia purchased the missing production from RES. In 2023, the share of RES in gross final energy consumption was 25.1%, which is 5.3 percentage points more than in 2005. The increase in the share of RES in 2023 is the result of an increase in the use of RES in the electricity production sector.