The year 2022 was exceptional for electricity production in Slovenia, as difficulties with coal supplies led to the lowest production from solid fuels since 1992, and drought also reduced production from renewable energy sources. This resulted in a record share of nuclear energy in electricity production (42%) and very low total production (13.4 TWh), the lowest since 1999. The share of domestic electricity production was 71%, below the target set in the National Energy and Climate Plan, and the annual production was 40% lower than the gross consumption.

Although electricity and heat generation increased by 30% between 1990 and 2021, CO2 emissions decreased by 31.5%, mainly due to the increase in generation efficiency, as well as to the increase in RES and nuclear generation. SO2 emissions decreased by almost 99%, mainly due to the installation of desulphurisation, the increase in generation efficiency and share of RES and nuclear generation.

In 2022, EU-27 net GHG emissions decreased by 1.7% compared to 2021 and was 32% lower than 1990. In 2022, Slovenian GHG emissions decreased by 2.9% compared to 2021. Emissions from non-ETS sectors were as much as 3.5% higher than in 2021, but 9.4% lower than in 2005.

Water protection areas (WPA) cover 17.4% of Slovenia's territory. The land use structure in water protection areas is dominated by forest (62.1 %), followed by grassland (13.5 %) and arable land (10.5 %). The amount of built-up land in the water protection areas is increasing, while a decrease in arable land and an increase in the share of organically farmed land indicate positive changes in the direction of extensification of land use.

Primary energy consumption amounted to 6,470 ktoe in 2021 and increased by 2.7 % compared to the previous year. The increase was a result of an increase in the final energy consumption due to the economic recovery after the coronavirus pandemic and a colder year 2021, while the electricity production decreased compared to the previous year. Primary energy consumption was 258 ktoe (3.8%) lower than the indicative target value for 2021 from the currrent National Energy and Climate Plan (NECP), while it slightly lagged behind the annual indicative target from the proposal for the NECP update.